WO2003032399A1 - Semiconductor device fabricated on surface of silicon having <110> direction of crystal plane and its production method - Google Patents
Semiconductor device fabricated on surface of silicon having <110> direction of crystal plane and its production method Download PDFInfo
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- WO2003032399A1 WO2003032399A1 PCT/JP2002/010288 JP0210288W WO03032399A1 WO 2003032399 A1 WO2003032399 A1 WO 2003032399A1 JP 0210288 W JP0210288 W JP 0210288W WO 03032399 A1 WO03032399 A1 WO 03032399A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/60—Electrodes characterised by their materials
- H10D64/66—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes
- H10D64/68—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator
- H10D64/693—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator the insulator comprising nitrogen, e.g. nitrides, oxynitrides or nitrogen-doped materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28202—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation in a nitrogen-containing ambient, e.g. nitride deposition, growth, oxynitridation, NH3 nitridation, N2O oxidation, thermal nitridation, RTN, plasma nitridation, RPN
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/40—Crystalline structures
- H10D62/405—Orientations of crystalline planes
Definitions
- TECHNICAL FIELD A semiconductor device formed on a silicon surface having a> 110 plane orientation and a method of manufacturing the same
- the present invention generally relates to a semiconductor device, and more particularly to a semiconductor device formed on a silicon surface having a plane orientation at or near 110> plane orientation, and a method of manufacturing the same.
- a MIS (metal / insulating film / silicon) type field effect transistor has been formed on a silicon substrate having a surface with a 100> plane orientation.
- the thermal oxidation technology usually 800 ° C or higher
- the gate insulating film of the field effect transistor has good insulating film Z silicon interface characteristics, oxide withstand voltage characteristics, and leakage current.
- High-performance electrical characteristics such as characteristics and high reliability can be obtained only when using silicon with 100> plane orientation. Note that the description of the plane orientation is as follows.
- the ⁇ 100> direction is all directions crystallographically equivalent to the [100] direction, ie, the [100] direction, the [010] direction, and the [001] direction.
- the directions are collectively referred to.
- the ⁇ 100> plane is a general term for all planes crystallographically equivalent to the (100) plane, that is, the (100) plane, the (010) plane, the (001) plane, and the like. I have.
- the oxide film Z can be compared with a silicon oxide film of silicon oriented in the 100> plane by conventional thermal oxidation technology. Since the interface state density at the silicon interface is high and the electrical characteristics such as the breakdown voltage characteristics and leakage current characteristics of the oxide film are inferior, the reliability of the plane orientation with the highest mobility to date has been improved. High experimental findings were not obtained. On the other hand, by using microwave-excited plasma, high-quality silicon oxide, silicon oxynitride, and silicon nitride films can be deposited on silicon surfaces of all plane orientations, especially on silicon surfaces with 1 1 1> plane orientations. It is clear from Japanese Patent Application Laid-Open No.
- the present invention relates to a semiconductor device formed on a silicon surface having a ⁇ 110> plane orientation and a method for manufacturing the same.
- Another object of the present invention is to provide a semiconductor device in which a plurality of field effect transistors are formed on a silicon surface having a substantially 110> orientation, and a source region and a drain region of the field effect transistor.
- the field effect transistor is arranged on the silicon surface such that the direction connecting the two substantially coincides with the 110> direction.
- Another aspect of the present invention has a plurality of field effect transistors on a silicon surface having a substantially ⁇ 10> orientation, and a direction connecting a source region and a drain region of the field effect transistor is substantially.
- a method of manufacturing a semiconductor device that coincides with the ⁇ 110> direction a method of forming a gate insulating film of a field-effect transistor using a mixed gas plasma of a rare gas and an insulating film forming gas generated by microwave excitation is used.
- Another object of the present invention is to provide a method of manufacturing a semiconductor device characterized by being formed by:
- a silicon oxide film, a silicon oxynitride film, or a silicon nitride film is used as a good insulating film on a silicon substrate or silicon surface having substantially 110> plane orientation.
- a field-effect transistor with high mobility can be formed.
- an MIS transistor using a silicon nitride film as a gate insulating film is formed on a silicon substrate or silicon surface having a substantially 110> plane orientation, and a source region and a drain region are formed.
- the current driving capability of the transistor can be increased up to five times that of a transistor having a conventional silicon gate oxide film. It is possible to increase the size without performing miniaturization.
- the MIS transistor of the present invention enables high-speed operation without deteriorating the breakdown voltage, and increases the product of the high-frequency cut-off frequency and the breakdown voltage of the silicon CMOS integrated circuit (f T ⁇ BV bd product) up to five times that of the conventional one. It is possible to increase. This means that even with a silicon CMOS device, a high-speed integrated circuit that can surpass silicon germanium transistors and gallium arsenide transistors can be realized.
- the current drive capability is deteriorated compared to the conventional MIS transistor using a silicon gate oxide film on the (100) plane. Without reducing the element area to 1/2 or less, it is possible to realize a low power consumption integrated circuit with a 1/4 consumption. Furthermore, by increasing the channel length five times without changing the channel width of the MIS transistor, the current driving capability is inferior to the conventional MIS transistor using a silicon gate oxide film on the (100) plane. Without reducing the variation of Shikiichi to 12 or less, the 1 / f noise to 1 to 2 or less, and the thermal JI sound to 1/2 or less, forming a high precision integrated circuit can do. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a schematic view of a crystal structure of a silicon substrate having a 110> plane orientation in which a field-effect transistor is formed;
- Fig. 2 shows 1 1 0> in plane? ⁇ 3 ⁇ 411 Diagram showing the arrangement direction dependence of transistor mobility when 1 S transistor is formed;
- FIG. 3A to 3C are diagrams showing the plane orientation dependence of the current 3 ⁇ 4E characteristic of the MIS transistor;
- FIG. 4 is a conceptual diagram of a plasma device using a radial line slot antenna;
- FIG. The formation time of silicon oxide FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- a high-quality gate insulating film can be formed on a silicon surface of any plane orientation. Although it can be formed at a low temperature of about 0 ° C, as a result of using this technique to investigate the silicon plane orientation dependence of the field effect transistor in detail, the inventor of the present invention found that the field effect transistor Has been found to be highest when a field-effect transistor is placed on a silicon surface in the ⁇ 110> direction, with the direction from the source region to the drain region facing the ⁇ 110> direction. Was.
- the use of not only a silicon oxide film but also a silicon oxynitride film or a silicon nitride film, which has a higher dielectric constant than the silicon oxide film, as the gate insulating film makes it proportional to the dielectric constant.
- the silicon nitride film has a dielectric constant of about twice that of the silicon oxide film
- the MIS transistor using the silicon nitride film as the gate insulating film must be selected according to the plane orientation of the present invention.
- the N-type MIS transistor is about 2.8 times that of a conventional transistor with the same gate insulation and a silicon oxide film formed on the (100) plane as the gate insulation film, and the P-type MIS transistor As a result, it is possible to obtain a field-effect transistor having a high drivability with about five times the current driving capability.
- An example of arranging a source region and a drain region on a silicon surface in the ⁇ 110> direction so that the direction connecting the source region and the drain region is in the ⁇ 110> direction is, for example, (110) Gate electrode on a silicon substrate whose principal plane is plane orientation Are arranged so that the longitudinal direction of the gate electrode of the transistor coincides with the [001] direction, the source region is arranged in the [1-10] direction with respect to the gate electrode in the (110) plane, and the drain region Is arranged on the side in the [ ⁇ 110] direction in the (110) plane.
- the present invention includes all configurations that are crystallographically equivalent to this. This is also equivalent to a configuration in which the gate electrode is arranged so that the longitudinal direction of the gate electrode coincides with the direction rotated 135 degrees in the (1-10) plane with respect to the line of intersection with the (111) plane. is there.
- the “substantially 110> orientation” refers to not only the (110) plane or the ⁇ 110 ⁇ plane including all planes crystallographically equivalent thereto, but also directions substantially equivalent to the crystallography (551) plane, (331) plane, (221) plane, (553) plane, (335) plane, (112) plane, (113) plane, (115) plane Plane, (117) plane, etc. have the corresponding plane orientation.
- the plane orientations comparable to the plane orientations at which the mobility is almost maximum are (320), (531), (321), (533), The 535) plane, the (230) plane, the (351) plane, the (231) plane, the (353) plane, the (355) plane, and the like can also be selected as the crystal plane from which the effects of the present invention can be obtained.
- a semiconductor device in which a MIS field-effect transistor using a silicon oxide film as a gate insulating film is formed on a 110> oriented silicon substrate will be described.
- FIG. 1 shows a schematic diagram of a crystal structure of a silicon crystal constituting a silicon substrate used in the field-effect transistor of the present invention, as viewed from the ⁇ 110> direction.
- both the arrows 101 and 102 indicate the 110> direction
- silicon atoms 103 are placed at the interface with the gate insulating film. It can be seen that they are arranged in.
- the gate electrode of the field-effect transistor is formed on the main surface of the silicon substrate having the 110> orientation, for example, the (110) plane, and its longitudinal direction extends in the left-right direction on the paper of FIG. And place the sauce further in front of the paper
- the drain region is arranged in the region in the depth direction of the drawing.
- the direction in which the field effect transistor is arranged such that this direction coincides with the source region and the drain region on the silicon surface of the ⁇ 110> orientation according to the present invention, and the line connecting the source region and the drain region coincides with the>110> orientation.
- the mobility of the MIS transistor is highest in this direction, as shown in Figure 2 below.
- FIG. 2 is a diagram showing the dependence of the transistor mobility on the transistor arrangement direction when a P-type MIS transistor is formed on the (110) plane. The change in mobility when the angle in the longitudinal direction of the gate electrode is changed with respect to the intersection line is shown.
- the mobility forms an angle of 135 degrees with the longitudinal direction of the gate electrode, that is, the source region and the drain region are formed in the (110) plane or the ⁇ 110 ⁇ plane. It can be seen that the maximum is obtained when they are arranged so that the direction connecting the ⁇ 110> plane direction.
- the mobility of the MIS transistor arranged in this direction is approximately 1.4 times that of the N-type MIS transistor and approximately 2.5 times that of the P-type MIS transistor, compared to the mobility of the 100> plane. It is considered that the mobility of the MIS transistor arranged in this direction is increased because the effective mass and lattice scattering probability of electrons and holes along the source region to the drain region are reduced.
- the crystal plane within ⁇ 10 degrees from the angle of 135 degrees Even if the direction is selected, a field effect transistor with improved mobility can be obtained.
- other plane orientations that are substantially equivalent to or close to the (110) plane or the ⁇ 110> plane such as the (551) plane, the (331) plane, the (221) plane, the (321) plane, and ( The field effect transistor of the present invention may be formed on the 531) plane, the (231) plane, the (351) plane, the (320) plane, the (230) plane, or the like.
- FIG. 4 is a cross-sectional view showing an example of an apparatus using a radial line slot antenna for realizing a gate silicon oxide film of a MIS type field effect transistor according to the present invention (WO 98/33362). See).
- the silicon oxide film is formed as follows.
- the inside of the vacuum chamber (processing chamber) 401 is evacuated, Kr gas and ⁇ 2 gas are introduced from the shower plate 402, and the pressure in the processing chamber is set to about 1 Torr.
- a silicon wafer substrate 403 having a 110> plane orientation is placed on a sample stage 404 having a heating mechanism, and the temperature of the sample is set to about 400 ° C. If this setting is in the range of 200-550 ° C, the results described below will be almost the same.
- a microwave of 2.45 GHz is supplied into the processing chamber from the coaxial waveguide 405 through the radial line slot antenna 406 and the dielectric plate 407 to generate high-density plasma in the processing chamber.
- the frequency of the supplied microwave is in the range of 900 MHz to 10 GHz, the results described below are almost the same.
- the distance between the shower plate 402 and the substrate 403 is set to 6 cm in this embodiment. The shorter the distance, the faster the film formation. Note that in this embodiment, an example in which a film is formed using a plasma device using a radial line slot antenna is described; however, a microwave may be introduced into a processing chamber using another method.
- the atomic oxygen oxidizes the substrate surface.
- 5 shows a plane orientation dependence of oxidation l ⁇ and the oxidation time relation during the silicon surface oxidation using a microwave excitation Kr / ⁇ 2 plasma.
- the silicon substrate has a (100) plane, a (111) plane, and a (110) plane.
- FIG. 5 also shows the oxidation time dependency of the conventional dry thermal oxidation at 900 ° C.
- the oxide film formed on the surface ⁇ 2 molecules or H 2 0 molecules expand Through the diffuser, for contributing to the oxidation reaches the interface between the silicon z silicon oxide film, the growth rate of force microwave difference by plane orientation is generated excited Kr / ⁇ second silicon substrate surface oxidation plasma using the oxide film Then, the growth rate of the silicon oxide film hardly depends on any plane orientation other than that shown in Fig. 5.
- the interface state density of the silicon oxide film / silicon was measured by low-frequency C-V measurement.
- the interface shoe density of the silicon oxide film formed using microwave-excited plasma was (100) Plane, (111) plane, (110) plane and all other plane orientations were low and good.
- the silicon oxide film formed by microwave-excited Kr / ⁇ 2 plasma even though oxidized at a low temperature of 400 ° C, (100) plane, (111) plane, (110) plane And in all other plane orientations, the same or better electrical properties can be obtained as with the conventional (100) plane high-temperature thermally oxidized film.
- FIGS. 2 and 3 show the plane orientation dependence of the mobility of an MIS transistor using a gut oxide film formed by such a process.
- the silicon oxide film formed by the microphone mouth-wave-excited plasma only needs to be present at least in a portion in contact with silicon, and a different material such as a silicon nitride film, an aluminum oxide film, and a tantalum oxide film is formed on the silicon oxide film. It is also possible to use an insulating film formed by laminating a hafnium oxide film, a dinolenium oxide film, and the like.
- a first gas discharging means for discharging Kr gas for exciting plasma by a microphone mouth wave and a second gas discharging means different from the first gas discharging means for discharging oxygen gas can also be formed by a two-stage shower plate type plasma processing device with gas release means.
- the ⁇ 110> oriented silicon wafer may be a Balta crystal wafer or a silicon 'on' insulator (SOI) wafer with a silicon layer formed on a buried insulating film.
- a silicon substrate or a metal layer may be provided below the embedded insulating film of the SOI wafer.
- SOI wafers with a low-resistance metal layer, such as copper, provided under the buried insulating film are better for high-speed operation.
- the uppermost silicon atom is located at the interface with the gate insulating film on the 110> orientation silicon substrate, as shown in Fig. 1.
- the highest mobility is obtained by arranging the gate electrodes in such a manner that the longitudinal direction thereof coincides with the left-right direction of the paper, the source region in the front of the paper, and the drain region in the back of the paper.
- the current driving capability of the MIS transistor arranged in this direction increases as the dielectric constant of the silicon oxynitride film becomes higher than that of the silicon oxide film.
- the current driving capability was about 1.6 times that of the N-type and about 2.8 times of the P-type MIS transistor compared to the (100) plane silicon oxide MIS transistor.
- the mobility of the MIS transistor arranged in the above direction is increased because the effective mass and the lattice scattering probability of electrons and holes along the source region to the drain region are reduced as in the first embodiment. .
- the plane orientation that enhances the mobility of the present invention as in the first embodiment, another plane orientation substantially equivalent to the (110) plane or the 110> plane or a plane direction angle close to the (110) plane, for example, the (55 1) plane,
- the field effect transistor of the present invention is formed on the (331) plane, (221) plane, (321) plane, (531) plane, (231) plane, (351) plane, (320) plane, (230) plane, etc.
- Well are ,.
- the gate silicon oxynitride film of the MIS type field effect transistor of the present invention As in the case of, this is realized by a microphone mouth-wave excitation plasma device using the radial line slot antenna of FIG.
- the silicon oxynitride film is formed as follows.
- the inside of the vacuum chamber (processing chamber) 401 is evacuated, and Kr gas, ⁇ 2 gas, and NH 3 gas are introduced from the shower plate 402, and the pressure in the processing chamber is set to about 1 Torr.
- a silicon wafer substrate 4103 having a ⁇ 110> plane orientation is placed on a sample stage 404 having a heating mechanism, and the temperature of the sample is set to about 400 ° C.
- a microwave of 5..45 GHz is supplied into the processing chamber, and a high frequency is supplied into the processing chamber. Generates a plasma of high density.
- the distance between the shower plate 402 and the substrate 43 is about 6 cm.
- the force S shown in the example in which a film was formed using a plasma device using a radial line slot antenna, and a microphone mouth wave may be introduced into the processing chamber using another method.
- the silicon substrate surface is oxynitrided.
- the growth rate of the oxynitride film hardly depends on the plane orientation.
- the silicon oxynitride film / silicon interface state density is low and is favorable for (100) plane, (111) plane, (110) plane and all other plane orientations.
- first gas releasing means for releasing Kr gas for exciting plasma by a microphone mouth wave and second gas releasing means different from the first gas releasing means for releasing oxygen gas. It can also be formed by a step shower plate type plasma processing apparatus.
- the presence of hydrogen is one important factor. Requirements.
- Si—H and N—H bonds Due to the presence of hydrogen in the plasma, dangling bonds in the silicon nitride film and at the interface are terminated by forming Si—H and N—H bonds, and as a result, electrons at the interface between the silicon oxynitride film and the interface are formed. There are no traps.
- the existence of the Si—H bond and the N—H bond in the oxynitride film of the present invention is determined by measuring the infrared absorption spectrum and the X-ray photoelectron spectrum, respectively.
- the presence of hydrogen eliminates also hysteresis CV characteristic, the silicon / silicon oxynitride film interface density kept low at 3 X 1 0 10 c in- 2 .
- the partial pressure of hydrogen gas In order to form a silicon oxynitride film using a mixed gas of a rare gas (Ar or Kr) and O 2 , N 2 ZH 2 , the partial pressure of hydrogen gas must be 0.5% or more. The trap of electrons and holes in the film is sharply reduced.
- the silicon oxynitride film formed by the microphone mouth-wave-excited plasma only needs to be present at least in a portion in contact with silicon, and a different material such as a silicon nitride film or aluminum is formed on the silicon oxynitride film.
- An insulating film in which an oxide film, a tantalum oxide film, a hafnium oxide film, a zirconium oxide film, or the like is stacked may be used.
- another plasma processing apparatus capable of forming a low-temperature oxide film using plasma may be used.
- a first gas release means for releasing the A r or K r gas for exciting plasma by a microwave, 0 2, NHs (or N 2 / H 2 gas) the first you outgas It can also be formed by a two-stage shower plate type plasma processing apparatus having a second gas releasing means different from the gas releasing means.
- the uppermost silicon atom is located at the interface with the gate insulating film.
- the gate electrodes are arranged so that the longitudinal direction coincides with the left and right direction of the paper, and the source region is located in the front of the paper and the drain region is located in the back of the paper. The configuration that provides the highest mobility gives the highest mobility.
- the current driving capability of the silicon nitride film is higher than that of the silicon oxide film by the dielectric constant.
- the dielectric constant of the silicon nitride film of this example was about 2 that of the silicon oxide film.
- the current drive capability of the field-effect transistor was about 2.8 times that of the N-type transistor and about 5 that of the P-type MIS transistor compared to the MIS transistor with a silicon oxide film formed on the (100) plane.
- the high mobility of the MIS transistor arranged in this direction is due to a decrease in the effective mass and lattice scattering probability of electrons and holes from the source region to the drain region, as in Example 1. I do.
- the plane orientation for increasing the mobility of the present invention as in the first embodiment, other plane orientations substantially equivalent to the (1 10) plane or the 110> plane or the plane direction angle is close, the (551) plane, (331) ) Plane, (221) plane, (321) plane, (531) plane, (231) plane, (351) plane, (320) plane, (230) plane, etc. Good.
- the gate silicon nitride film of the MIS field-effect transistor of the present invention is realized by a microphone mouth-wave excited plasma apparatus using the radianol relay antenna shown in FIG.
- the silicon nitride film is formed as follows.
- the inside of the vacuum chamber (processing chamber) 401 is evacuated, Kr gas and NHs gas are introduced from the shower plate 42, and the pressure in the processing chamber is set to about 1 Torr.
- a silicon wafer substrate 403 having a 110> plane orientation is placed on a sample table 404 having a heating mechanism, and the temperature of the sample is set to about 400 ° C.
- a microwave of 2.45 GHz is supplied into the processing chamber from the coaxial waveguide 405 through the radial line slot antenna 406 and the dielectric plate 407 to generate high-density plasma in the processing chamber.
- the distance between the shower plate 402 and the substrate 403 is set to 6 c.
- a microphone mouth wave may be introduced into a processing chamber by using another method.
- the growth rate of the nitride film hardly depends on the plane orientation.
- the silicon nitride film / silicon interface state density is low and is favorable for (100) plane, (111) plane, (110) plane and all other plane orientations.
- another plasma processing apparatus capable of forming a low-temperature nitride film using plasma may be used.
- a two-stage having first gas releasing means for releasing Kr gas for exciting plasma by microwaves and second gas releasing means different from the first gas releasing means for releasing oxygen gas It can also be formed with a shower plate type plasma process device.
- the presence of hydrogen is one important requirement. Due to the presence of hydrogen in the plasma, dangling pounds in the silicon nitride film and at the interface are terminated by forming Si-1H bonds or N--H bonds, resulting in electron traps at the silicon nitride film and the interface. Disappears.
- the existence of the Si—H bond and the N—H bond in the nitride film of the present invention is determined by measuring the infrared absorption spectrum and the X-ray photoelectron spectroscopy spectrum, respectively.
- silicon Z silicon nitride film interface density kept low at 3 X 1 c m '2.
- the partial pressure of hydrogen gas is set to 0.5% or more, and electrons and holes in the film are formed. Traps decrease sharply.
- the silicon nitride film formed by microwave-excited plasma only needs to be present at least in a portion in contact with silicon, and a different material such as a silicon oxide film, an aluminum oxide film, a tantalum oxide film, Alternatively, an insulating film formed by laminating a layer of a oxide film of platinum, a film of zirconium oxide, or the like may be used.
- a first gas releasing means for discharging Ar or Kr gas for exciting plasma by a microphone mouth wave and a gas discharging means for discharging NH 3 (or N 2 / H 2 gas) gas It can also be formed by a two-stage shower plate type plasma processing apparatus having a second gas releasing means different from the first gas releasing means.
- a MIS transistor using a silicon oxide film, a silicon oxynitride film, or a silicon nitride film as a gate insulating film on a silicon substrate or a silicon surface having substantially 110> plane orientation is provided.
- a field-effect transistor having high mobility can be formed by forming an orientation such that the direction connecting the source region and the drain region is substantially 110> plane direction.
- an MIS transistor using a silicon nitride film as a gate insulating film is formed on a silicon substrate or a silicon surface having a substantially 110> plane orientation, and a source region and a drain region are formed.
- the current drive capability of the transistor can be reduced to five times that of a conventional transistor with a silicon gate oxide film by forming it in such an orientation that the direction connecting the It can be increased without doing it.
- the MIS transistor of the present invention can operate at high speed without deteriorating the breakdown voltage, and the product of the high-frequency cut-off frequency and the device breakdown voltage (fT ⁇ BVbd product) in the silicon CMOS integrated circuit can be increased by up to five times. It can be increased.
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Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020037010850A KR100614822B1 (ko) | 2001-10-03 | 2002-10-02 | 〈110〉 면방위의 실리콘 표면상에 형성된 반도체 장치 및그 제조 방법 |
| US10/416,969 US6903393B2 (en) | 2001-10-03 | 2002-10-02 | Semiconductor device fabricated on surface of silicon having <110> direction of crystal plane and its production method |
| AT02800747T ATE509366T1 (de) | 2001-10-03 | 2002-10-02 | Verfahren zur herstellung eines halbleiterbauelements, hergestellt auf einer oberfläche aus silizium mit 110- kristallebenenrichtung |
| EP02800747A EP1434253B1 (en) | 2001-10-03 | 2002-10-02 | Production method of a semiconductor device fabricated on surface of silicon having <110> direction of crystal plane |
| IL15611602A IL156116A0 (en) | 2001-10-03 | 2002-10-02 | Semiconductor device fabricated on surface of silicon having <110> direction of crystal plane and its production method |
| IL156116A IL156116A (en) | 2001-10-03 | 2003-05-26 | Semiconductor device fabricated on surface of silicon having < 110> direction of crystal plane and its production method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001307899A JP2003115587A (ja) | 2001-10-03 | 2001-10-03 | <110>方位のシリコン表面上に形成された半導体装置およびその製造方法 |
| JP2001-307899 | 2001-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003032399A1 true WO2003032399A1 (en) | 2003-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2002/010288 Ceased WO2003032399A1 (en) | 2001-10-03 | 2002-10-02 | Semiconductor device fabricated on surface of silicon having <110> direction of crystal plane and its production method |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6903393B2 (ja) |
| EP (1) | EP1434253B1 (ja) |
| JP (1) | JP2003115587A (ja) |
| KR (1) | KR100614822B1 (ja) |
| AT (1) | ATE509366T1 (ja) |
| IL (2) | IL156116A0 (ja) |
| TW (1) | TW561588B (ja) |
| WO (1) | WO2003032399A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2004102668A1 (ja) * | 2003-05-15 | 2004-11-25 | Shin-Etsu Handotai Co. Ltd. | Soiウェーハおよびその製造方法 |
| EP1628337A4 (en) * | 2003-05-26 | 2008-07-16 | Tadahiro Ohmi | P CHANNEL POWER MIS COVER TRANSISTOR AND SWITCHING NETWORK |
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| US8080459B2 (en) * | 2002-09-24 | 2011-12-20 | Vishay-Siliconix | Self aligned contact in a semiconductor device and method of fabricating the same |
| US7179746B2 (en) | 2002-12-02 | 2007-02-20 | Foundation fõr Advancement of Internati{dot over (o)}nal Science | Method of surface treatment for manufacturing semiconductor device |
| JP4954437B2 (ja) * | 2003-09-12 | 2012-06-13 | 公益財団法人国際科学振興財団 | 半導体装置の製造方法 |
| JP2004319907A (ja) * | 2003-04-18 | 2004-11-11 | Tadahiro Omi | 半導体装置の製造方法および製造装置 |
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| JP4619637B2 (ja) * | 2003-09-09 | 2011-01-26 | 財団法人国際科学振興財団 | 半導体装置及びその製造方法 |
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| JP5128064B2 (ja) | 2005-06-17 | 2013-01-23 | 国立大学法人東北大学 | 半導体装置 |
| JP2007073799A (ja) * | 2005-09-08 | 2007-03-22 | Seiko Epson Corp | 半導体装置 |
| JP2007073800A (ja) * | 2005-09-08 | 2007-03-22 | Seiko Epson Corp | 半導体装置 |
| CN101322240B (zh) | 2005-12-02 | 2011-12-14 | 国立大学法人东北大学 | 半导体装置 |
| KR101032286B1 (ko) | 2005-12-22 | 2011-05-06 | 자이단호진 고쿠사이카가쿠 신고우자이단 | 반도체 장치 |
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| US9437729B2 (en) | 2007-01-08 | 2016-09-06 | Vishay-Siliconix | High-density power MOSFET with planarized metalization |
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| JP2010018504A (ja) * | 2008-07-14 | 2010-01-28 | Japan Atomic Energy Agency | Si(110)表面の一次元ナノ構造及びその製造方法 |
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2001
- 2001-10-03 JP JP2001307899A patent/JP2003115587A/ja active Pending
-
2002
- 2002-10-02 EP EP02800747A patent/EP1434253B1/en not_active Expired - Lifetime
- 2002-10-02 US US10/416,969 patent/US6903393B2/en not_active Expired - Fee Related
- 2002-10-02 KR KR1020037010850A patent/KR100614822B1/ko not_active Expired - Fee Related
- 2002-10-02 AT AT02800747T patent/ATE509366T1/de not_active IP Right Cessation
- 2002-10-02 IL IL15611602A patent/IL156116A0/xx unknown
- 2002-10-02 WO PCT/JP2002/010288 patent/WO2003032399A1/ja not_active Ceased
- 2002-10-03 TW TW091122832A patent/TW561588B/zh not_active IP Right Cessation
-
2003
- 2003-05-26 IL IL156116A patent/IL156116A/en not_active IP Right Cessation
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| JPS6170748A (ja) * | 1984-09-14 | 1986-04-11 | Hitachi Ltd | 半導体装置 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004102668A1 (ja) * | 2003-05-15 | 2004-11-25 | Shin-Etsu Handotai Co. Ltd. | Soiウェーハおよびその製造方法 |
| KR101014601B1 (ko) | 2003-05-15 | 2011-02-16 | 신에쯔 한도타이 가부시키가이샤 | Soi웨이퍼 및 그 제조방법 |
| EP1628337A4 (en) * | 2003-05-26 | 2008-07-16 | Tadahiro Ohmi | P CHANNEL POWER MIS COVER TRANSISTOR AND SWITCHING NETWORK |
| US7663195B2 (en) | 2003-05-26 | 2010-02-16 | Tadahiro Ohmi | P-channel power MIS field effect transistor and switching circuit |
| EP2166565A3 (en) * | 2003-05-26 | 2010-07-07 | Tadahiro Ohmi | P-channel power MIS field effect transistor and switching circuit |
| US7928518B2 (en) | 2003-05-26 | 2011-04-19 | Tadahiro Ohmi | P-channel power MIS field effect transistor and switching circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE509366T1 (de) | 2011-05-15 |
| EP1434253B1 (en) | 2011-05-11 |
| EP1434253A1 (en) | 2004-06-30 |
| IL156116A0 (en) | 2003-12-23 |
| US20040032003A1 (en) | 2004-02-19 |
| KR100614822B1 (ko) | 2006-08-25 |
| JP2003115587A (ja) | 2003-04-18 |
| US6903393B2 (en) | 2005-06-07 |
| EP1434253A4 (en) | 2006-10-04 |
| TW561588B (en) | 2003-11-11 |
| IL156116A (en) | 2009-09-22 |
| KR20040037278A (ko) | 2004-05-06 |
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