WO2004109790A1 - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
- Publication number
- WO2004109790A1 WO2004109790A1 PCT/JP2004/007844 JP2004007844W WO2004109790A1 WO 2004109790 A1 WO2004109790 A1 WO 2004109790A1 JP 2004007844 W JP2004007844 W JP 2004007844W WO 2004109790 A1 WO2004109790 A1 WO 2004109790A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- semiconductor device
- insulating film
- plane
- gate insulating
- silicon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H10D64/01336—
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0172—Manufacturing their gate conductors
- H10D84/0179—Manufacturing their gate conductors the gate conductors having different shapes or dimensions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0181—Manufacturing their gate insulating layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/02—Manufacture or treatment characterised by using material-based technologies
- H10D84/03—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology
- H10D84/038—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology using silicon technology, e.g. SiGe
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/026—Manufacture or treatment of FETs having insulated gates [IGFET] having laterally-coplanar source and drain regions, a gate at the sides of the bulk channel, and both horizontal and vertical current flow
-
- 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]
- H10D30/62—Fin field-effect transistors [FinFET]
Definitions
- the present invention relates to a semiconductor device having a plurality of crystal planes functioning as transistors, such as a double gate structure and a triple gate structure, and a method for manufacturing the same.
- a semiconductor device having a double-gate structure or a triple-gate structure has been proposed because punch-through resistance is enhanced and a short-channel transistor can be formed.
- the structure is such that irregularities are formed on the surface of a silicon substrate, a gate insulating film and a gate electrode are formed on the side surface and the upper surface, and the silicon substrate surface on the side surface or the side surface and the upper surface is used as a channel of the transistor.
- the case where two side surfaces are used as channels is called a double gate structure
- the case where two side surfaces and the upper surface are used as channels is called a triple gate structure.
- a gate insulating film such as a silicon oxide film is formed on the substrate surface even in the case of a single gate structure as well as a double gate structure or a triple gate structure.
- a silicon oxide film has been formed as a gate insulating film by a thermal oxidation technique.
- silicon and the insulating film (Si / Si0) except for the crystal plane (100) are formed. 2 )
- the interface state increased, and the quality of the oxide film deteriorated, making it difficult to obtain good characteristics as a semiconductor device.
- the present invention has been made in view of the above situation, and provides a method of manufacturing a semiconductor device that contributes to improvement of characteristics of a semiconductor device, and a semiconductor device manufactured by these methods.
- a gate insulating film is formed on a silicon substrate surface having a three-dimensional structure having a plurality of crystal planes by using plasma.
- the plasma gate insulating film has a uniform film thickness even at a plurality of crystal planes and at a part of a three-dimensional structure where the interface state does not increase.
- FIG. 1 is a schematic diagram (cross-sectional view) showing an example of a configuration of a plasma processing apparatus according to the present invention.
- FIG. 2 schematically shows a transistor structure of the semiconductor device according to the present invention.
- FIG. 1 shows an example of a schematic configuration of a plasma processing apparatus 10 used in the present invention.
- the plasma processing apparatus 10 has a processing container 11 provided with a substrate holding table 12 for holding a silicon wafer W as a substrate to be processed.
- the gas (gas) in the processing vessel 11 is exhausted from the exhaust ports 11A and 11B via an exhaust pump (not shown).
- the substrate holder 12 has a heater function of heating the silicon wafer W.
- a gas baffle plate (partition plate) 26 made of aluminum is disposed around the substrate holding table 12.
- a quartz cover 28 is provided on the upper surface of the gas baffle plate 26.
- An opening is provided above the apparatus of the processing container 11 so as to correspond to the silicon wafer W on the substrate holder 12.
- a planar antenna 14 is arranged above the dielectric plate 13 (outside the processing vessel 11).
- the planar antenna 14 has a plurality of slots for transmitting electromagnetic waves supplied from the waveguide.
- a wavelength shortening plate 15 and a waveguide 18 are arranged.
- Wavelength shortening plate 1 The cooling plate 16 is arranged outside the processing vessel 11 so as to cover the upper part of the processing vessel 5. Inside the cooling plate 16, a refrigerant passage 16 a through which the refrigerant flows is provided.
- a gas supply port 22 for introducing a gas during plasma processing is provided on the inner side wall of the processing container 11.
- the gas supply port 22 may be provided for each gas to be introduced.
- a mass flow controller (not shown) is provided for each supply port as flow rate adjusting means.
- the gas to be introduced is mixed and sent in advance, and the supply port 22 may be a single nozzle.
- the flow rate of the introduced gas is adjusted by a flow control valve or the like in the mixing stage.
- a coolant channel 24 is formed inside the inner wall of the processing container 11 so as to surround the entire container.
- the plasma substrate processing apparatus 10 used in the present invention is provided with an electromagnetic wave generator (not shown) that generates several gigahertz electromagnetic waves for exciting plasma. The microphone mouth wave generated by this electromagnetic wave generator propagates through the waveguide 18 and is introduced into the processing vessel 11.
- the gate insulating film (oxide film) according to the present invention is formed on the substrate surface by using the plasma processing apparatus 10 having the above structure.
- a region where a transistor is to be formed is three-dimensionally formed as convex silicon blocks 52 n and 52 p by a well-known method, for example, polysilicon film formation by a reduced pressure CVD method.
- a silicon wafer W having silicon blocks 52 n and 52 p is introduced into the processing chamber 11, and set on the substrate holder 12. After that, the air inside the processing container 11 is exhausted through the exhaust ports 11A and 1IB, and the inside of the processing container 11 is set to a predetermined processing pressure.
- an inert gas and an oxygen gas are supplied from the gas supply port 22. At least one of krypton (K r), argon (A r), and xenon (X e) is used as the inert gas.
- the microwave having a frequency of several GHz generated by the electromagnetic wave generator is supplied to the processing vessel 11 through the waveguide 18.
- the microphone mouth wave is introduced into the processing container 11 via the planar antenna 14 and the dielectric plate 13.
- the high frequency plasma is excited by the microphone mouth wave, and the reaction gas becomes a radical, and a plasma oxide film is formed on the substrate surface of the silicon wafer W.
- the wafer temperature at the time of forming the plasma oxide film is 400 ° C. or less.
- FIG. 2 schematically shows the transistor structure of the semiconductor device according to the present invention.
- a silicon block 52 n for an NMOS transistor in which an NOS transistor is formed and a silicon block 52 p for a PM ⁇ S transistor in which a PMOS transistor is formed are formed in a convex shape on a silicon substrate having the same crystal structure.
- Gate insulating films 54 are formed on both side surfaces and upper surfaces of these silicon blocks 52n and 52p.
- the gate insulating film 54 formed using plasma in the plasma processing apparatus has a uniform film thickness even at the edge of the silicon block, and a good insulating film without an increase in the interface state due to the crystal plane. Obtained.
- a gate electrode (not shown) is formed on the gate insulating film 54.
- the transistor is turned on and off by applying an appropriate voltage to the gate electrode.
- an appropriate voltage for example, if a source region is formed on the near side of the drawing and a drain region is formed on the far side in FIG. 2, for example, holes or electrons are respectively formed from the drain toward the source. Flows perpendicular to the plane of the page, from the back side to the front side. In this way, the two sides of the silicon block and the three sides of the top surface are channels, and current can flow. Since the three sides are three-dimensionally formed as channels, there is an advantage that the size of the transistor can be reduced.
- the crystal plane in the silicon substrate plane (horizontal plane) direction is the (100) plane
- the crystal plane in the side (vertical plane) direction of the silicon blocks 52 ⁇ , 52 ⁇ is the (110) plane.
- the silicon block 52p for the PMOS transistor is smaller than the silicon block 52n for the NMOS transistor.
- the velocity of electrons (negative charge) flowing on the (100) plane is about 20% faster than the velocity of electrons flowing on the (110) plane.
- the speed of the hole (positive charge) flowing on the (100) plane is about 1 to 3 times slower than the speed of the hole flowing on the (110) plane.
- the present invention has been made using such a principle.
- a structure is used in which many holes flow on the (110) plane and many electrons flow on the (100) plane.
- the crystal plane includes those that are within 8 ° of the earth with respect to the crystal axis.
- the case where the silicon substrate surface is the (100) plane is taken as an example, so the height of the silicon block 52 n forming the NMOS transistor is reduced, but the silicon substrate surface is the (110) plane. In this case, the height of the silicon block 52n of the NMOS transistor is increased, contrary to the case of FIG. The point is that holes and electrons move more efficiently.
- Reference numeral 54 in the figure denotes an insulating film such as a silicon oxide film, a silicon nitride film, and a silicon oxynitride film.
- the upper surface and the side surface on which the silicon block is formed have different crystal axes. It also has a three-dimensional structure and has corners.
- a gate oxide film is formed on a different crystal plane by a conventional thermal oxidation method with a corner portion, there is a disadvantage that a uniform film thickness cannot be obtained at a corner portion.
- the interface state increases in the crystal plane (110)
- the quality of the insulating film deteriorates, and the threshold voltage of the transistor differs in the crystal plane.
- the gate insulating film 54 formed using plasma in the plasma processing apparatus has a uniform thickness even at the corners of the silicon block, and also has an increased interface state at the crystal plane (110). A good insulating film equivalent to the crystal plane (100) can be obtained.
- a channel in a semiconductor device including a channel formation region having a three-dimensional structure, a channel has a plurality of crystal faces, and the channel is formed so that an area of a crystal face having high mobility of electrons or holes among the plurality of crystal faces becomes large. Configure the formation area. Further, by forming a gate insulating film using plasma on a plurality of crystal plane surfaces, a favorable insulating film can be obtained, and a high-quality semiconductor device can be obtained.
Landscapes
- Insulated Gate Type Field-Effect Transistor (AREA)
- Formation Of Insulating Films (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/558,760 US7449719B2 (en) | 2003-06-04 | 2004-05-31 | Semiconductor device and method of manufacturing the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003159973 | 2003-06-04 | ||
| JP2003-159973 | 2003-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004109790A1 true WO2004109790A1 (ja) | 2004-12-16 |
Family
ID=33508540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/007844 Ceased WO2004109790A1 (ja) | 2003-06-04 | 2004-05-31 | 半導体装置およびその製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7449719B2 (ja) |
| CN (1) | CN100454499C (ja) |
| TW (1) | TWI343592B (ja) |
| WO (1) | WO2004109790A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI402943B (zh) * | 2005-12-14 | 2013-07-21 | 飛思卡爾半導體公司 | 具有不同表面方向之絕緣體上半導體主動層 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7199451B2 (en) * | 2004-09-30 | 2007-04-03 | Intel Corporation | Growing [110] silicon on [001]-oriented substrate with rare-earth oxide buffer film |
| US20080128813A1 (en) * | 2006-11-30 | 2008-06-05 | Ichiro Mizushima | Semiconductor Device and Manufacturing Method Thereof |
| US20080290414A1 (en) * | 2007-05-24 | 2008-11-27 | Texas Instruments Incorporated | Integrating strain engineering to maximize system-on-a-chip performance |
| JP6047308B2 (ja) * | 2012-05-28 | 2016-12-21 | 日精エー・エス・ビー機械株式会社 | 樹脂容器用コーティング装置 |
| CN110520789A (zh) * | 2017-03-31 | 2019-11-29 | 夏普株式会社 | 液晶显示装置、液晶显示装置的制造方法、电子设备 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04256369A (ja) * | 1991-02-08 | 1992-09-11 | Nissan Motor Co Ltd | 半導体装置 |
| JPH04372166A (ja) * | 1991-06-21 | 1992-12-25 | Matsushita Electric Ind Co Ltd | 半導体装置の製造方法 |
| JP2001160555A (ja) * | 1999-11-30 | 2001-06-12 | Tadahiro Omi | 111面方位を表面に有するシリコンを用いた半導体装置およびその形成方法 |
| JP2002118255A (ja) * | 2000-07-31 | 2002-04-19 | Toshiba Corp | 半導体装置およびその製造方法 |
| JP2002359293A (ja) * | 2001-05-31 | 2002-12-13 | Toshiba Corp | 半導体装置 |
| JP2003188273A (ja) * | 2001-12-13 | 2003-07-04 | Tadahiro Omi | 相補型mis装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3556679B2 (ja) * | 1992-05-29 | 2004-08-18 | 株式会社半導体エネルギー研究所 | 電気光学装置 |
| JP3265569B2 (ja) * | 1998-04-15 | 2002-03-11 | 日本電気株式会社 | 半導体装置及びその製造方法 |
| US20020011612A1 (en) * | 2000-07-31 | 2002-01-31 | Kabushiki Kaisha Toshiba | Semiconductor device and method for manufacturing the same |
| JP3782021B2 (ja) * | 2002-02-22 | 2006-06-07 | 株式会社東芝 | 半導体装置、半導体装置の製造方法、半導体基板の製造方法 |
| US6911383B2 (en) * | 2003-06-26 | 2005-06-28 | International Business Machines Corporation | Hybrid planar and finFET CMOS devices |
| US7180134B2 (en) * | 2004-01-30 | 2007-02-20 | Taiwan Semiconductor Manufacturing Company, Ltd. | Methods and structures for planar and multiple-gate transistors formed on SOI |
-
2004
- 2004-05-31 WO PCT/JP2004/007844 patent/WO2004109790A1/ja not_active Ceased
- 2004-05-31 US US10/558,760 patent/US7449719B2/en not_active Expired - Lifetime
- 2004-05-31 CN CNB2004800154080A patent/CN100454499C/zh not_active Expired - Lifetime
- 2004-06-03 TW TW093115953A patent/TWI343592B/zh not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04256369A (ja) * | 1991-02-08 | 1992-09-11 | Nissan Motor Co Ltd | 半導体装置 |
| JPH04372166A (ja) * | 1991-06-21 | 1992-12-25 | Matsushita Electric Ind Co Ltd | 半導体装置の製造方法 |
| JP2001160555A (ja) * | 1999-11-30 | 2001-06-12 | Tadahiro Omi | 111面方位を表面に有するシリコンを用いた半導体装置およびその形成方法 |
| JP2002118255A (ja) * | 2000-07-31 | 2002-04-19 | Toshiba Corp | 半導体装置およびその製造方法 |
| JP2002359293A (ja) * | 2001-05-31 | 2002-12-13 | Toshiba Corp | 半導体装置 |
| JP2003188273A (ja) * | 2001-12-13 | 2003-07-04 | Tadahiro Omi | 相補型mis装置 |
Non-Patent Citations (1)
| Title |
|---|
| YU B. ET AL: "FinFET scaling to 10 nm gate length", INTERNATIONAL ELECTRON DEVICES MEETING (IEDM) - TECHNICAL DIGEST 2002, 2002, pages 251 - 254, XP010626034 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI402943B (zh) * | 2005-12-14 | 2013-07-21 | 飛思卡爾半導體公司 | 具有不同表面方向之絕緣體上半導體主動層 |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI343592B (en) | 2011-06-11 |
| US7449719B2 (en) | 2008-11-11 |
| US20070023780A1 (en) | 2007-02-01 |
| CN1799132A (zh) | 2006-07-05 |
| TW200428473A (en) | 2004-12-16 |
| CN100454499C (zh) | 2009-01-21 |
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