WO2024068041A1 - Halbleiterscheibe mit gan-zwischenschichten zur ausbildung von gan-halbleiterbauelementen - Google Patents
Halbleiterscheibe mit gan-zwischenschichten zur ausbildung von gan-halbleiterbauelementen Download PDFInfo
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- WO2024068041A1 WO2024068041A1 PCT/EP2023/000054 EP2023000054W WO2024068041A1 WO 2024068041 A1 WO2024068041 A1 WO 2024068041A1 EP 2023000054 W EP2023000054 W EP 2023000054W WO 2024068041 A1 WO2024068041 A1 WO 2024068041A1
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- H10P14/3216—
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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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02439—Materials
- H01L21/02455—Group 13/15 materials
- H01L21/02458—Nitrides
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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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02494—Structure
- H01L21/02496—Layer structure
- H01L21/02502—Layer structure consisting of two layers
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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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02538—Group 13/15 materials
- H01L21/0254—Nitrides
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- H10P14/2905—
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- H10P14/3251—
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- H10P14/3416—
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- H10P14/271—
Definitions
- the invention relates to a semiconductor wafer for forming GaN semiconductor components.
- Such semiconductor wafers primarily have a silicon substrate with an overlying buffer layer system, the top layer of the buffer layer system comprising a GaN layer.
- GaN semiconductor components in particular power transistors or LEDs, are produced on the GaN layer by growing and structuring additional layers.
- the aim here is to make the epitaxial growth of the GaN layer or the GaN sublayers as dislocation-free and monocrystalline as possible.
- the number of defects e.g. the number of thread-like dislocations, as much as possible and to deposit a defect-free monocrystalline GaN layer in order to achieve the highest possible yield in the production of semiconductor components containing GaN or consisting of GaN.
- the layers of the buffer layer system including the GaN layer, are usually produced using gas phase epitaxy processes, called MOVPE.
- MOVPE gas phase epitaxy processes
- the respective semiconductor layers are produced by means of deposition from the gas phase.
- organic carrier gases such as. B Trimethylgallium ((CH3)3Ga) and ammonia (NH3) with the addition of hydrogen are used as carrier gas in the growth of gallium nitride, the reaction taking place using the reaction formula can be described. Due to the presence of large amounts of carbon and hydrogen, small amounts of hydrogen and carbon are also unintentionally and unavoidably incorporated into the semiconductor crystal, ie into the GaN
- Methods for producing GaN layers are known from DE 10 2006 008 929 Al, EP 2 767 620 Al, DE 102 56 911 Al, US 2006/0281284 Al and US 2013/0087762 Al.
- the object of the invention is to provide a device that advances the prior art.
- a semiconductor wafer for forming GaN semiconductor components is provided, the semiconductor wafer having a diameter of at least 100 mm. It goes without saying that the semiconductor wafer can in particular also have a diameter of 150 mm or 200 mm or 300 mm or 450 mm.
- the semiconductor wafer has a substrate with an upper side and a lower side, the substrate consisting of silicon on the upper side.
- a transition layer is cohesively connected to the top of the substrate.
- a formed first GaN layer is arranged in a materially bonded manner on the transition layer.
- the first GaN layer includes a first GaN sublayer and a second GaN sublayer, wherein the second GaN sublayer is formed on the first GaN sublayer.
- the second GaN sublayer has on average a smaller number of thread-like dislocations than the first GaN sublayer.
- the first GaN sublayer has a first layer thickness and the second GaN sublayer has a second layer thickness, wherein the second layer thickness is greater than or equal to the first layer thickness.
- the semiconductor wafer comprises a substrate, wherein the substrate comprises or consists of a single layer or, in another embodiment, the substrate comprises or consists of a plurality of layers arranged in a stack.
- a single crystal silicon layer is formed on the top of the substrate.
- only the top side consists of a single-crystalline layer.
- the thickness of the topmost single-crystalline layer includes a thickness in a range from 10 nm to 100 pm.
- the entire surface preferably comprises or consists of a single-crystalline layer.
- the entire substrate consists of silicon, i.e. a single single-crystalline silicon layer.
- the crystal orientation of the single crystal layer is either ⁇ 100> or ⁇ 111>. It goes without saying that the single-crystalline layer can, however, also have other crystal directions, in particular a ⁇ 110> or ⁇ 011> or ⁇ 001> direction. It should be noted that the term “on average” means a total number of thread-like dislocations based on the entire area of the first or the entire area of the second GaN partial layer. With the aforementioned definition, the areal density of thread-like dislocations determined in this way applies Dislocations of the second GaN sublayer is smaller than the size of the area density of thread-like dislocations of the first GaN sublayer.
- the number of filamentary dislocations on small selected areas of the second GaN sublayer is compared to small selected areas of the first GaN sublayer, it is possible that the number of filamentary dislocations on the second GaN sublayer is equal to or even larger than the number of filamentary dislocations on the first GaN sublayer.
- GaN layer or GaN sublayer refers to a layer that comprises at least the elements Ga and N. Furthermore, it should be noted that all layers always include unintentional and unavoidable impurities and intentionally introduced dopants.
- the GaN layer or GaN sublayer has, in addition to the elements Ga and N, also other elements such as In and / or Al and / or further elements of the III or V main group.
- the proportion of the other elements of main group III and/or the number of elements in relation to main group V is less than 10%, preferably less than 5%, most preferably less than 1%.
- the GaN layer or the respective GaN partial layer consists exclusively of the elements Ga and N, although unintentional and unavoidable impurities and intentionally introduced dopants are still included.
- the aforementioned layers comprising at least the transition layer and the first GaN layer are part of a semiconductor buffer layer sequence.
- the purpose of the semiconductor buffer layer sequence is to provide a GaN layer that is as defect-free as possible in order to be able to produce GaN semiconductor components.
- An advantage of building a GaN layer from several, i.e. at least two, GaN sublayers is that the quality of the top GaN sublayer improves in comparison with a GaN layer comprising or consisting of a single GaN sublayer.
- One reason for improving the layer quality of the GaN layer is, among other things, a reduction in the number of thread-like dislocations.
- Another advantage is that the area of the majority of crystallites increases in the second GaN partial layer compared to the first GaN partial layer. This in particular reduces the number of thread-like dislocations.
- the surface of the crystallites under consideration is formed parallel to the respective layer surface and is also referred to below as the lateral surface.
- the average size of the crystallites in the second GaN sublayer is increased compared to the average size of the crystallites in the first GaN sublayer.
- the “average size of the crystallites” means the arithmetic mean, i.e. the total sum of the lateral surfaces divided by the number of crystallites.
- At least one deposition parameter on the MOVPE system is changed between the two GaN partial layers, ie at the point where an interface is formed between the two GaN partial layers. It is understood that the change in the changed separation parameter is greater than the uncertainty caused by the system conditions. accuracy of the respective deposition parameter.
- the size of the parameter change or the lower limit for the parameter change is at least 2 times or at least 10 times or at least 50 times the inaccuracy specified for the parameter by the control system on the MOVPE. It is understood that if several separation parameters are changed, the above statements apply to each of the changed separation parameters.
- the first GaN sublayer and the second GaN sublayer have the same stoichiometry.
- the difference in the stoichiometry between the two GaN partial layers based on the elements of the III main group is less than 2% and the difference in the stoichiometry based on the elements of the V main group is less than 2%.
- the difference in the curvature of the semiconductor wafer when depositing the first GaN sublayer and the second GaN sublayer is less than 5 km 1 .
- both layers, the first GaN sublayer and the second GaN sublayer exert the same or approximately the same stress on the substrate.
- the first GaN sublayer is almost or completely stress-free during deposition and/or immediately after deposition, i.e. neither compressively nor tensilely strained.
- the second GaN partial layer is almost or completely stress-free during deposition and/or immediately after deposition, i.e. neither compressively nor tensilely strained.
- the size of the wafer curvature is, in a first approximation, independent of the diameter of the semiconductor wafer.
- the first GaN sublayer has a first lattice constant and the second GaN sublayer has a second lattice constant.
- the first lattice constant is the same size as the second lattice constant.
- the difference between the two lattice constants is less than 1% or less than 0.5% or less than 0.3%.
- the second GaN sublayer is formed integrally on the first GaN sublayer.
- a connection layer is formed between the first GaN sublayer and the second GaN sublayer.
- the lattice constant of the connection layer is the same size as the lattice constant of the first GaN sublayer and/or the same size as the lattice constant of the second GaN sublayer or in another alternative the lattice constant of the connection layer is different to the lattice constant of the first GaN sublayer and/or or to the lattice constant of the second GaN sublayer.
- the thickness of the compound layer is in a range between 0.5 nm and 100 nm, preferably between 0.5 nm and 30 nm.
- the difference in the lattice constant between the connection layer and the first and/or the second GaN partial layer is in each case or in total less than 1% or less than 0.5% or less than 0.3%.
- the ratio of the sum of the thread-like dislocations of the second GaN sublayer to the sum of the thread-like dislocations of the first GaN sublayer is between 2 and 1000 or between 5 and 40.
- the sum is determined from the total number of thread-like dislocations of the entire layer.
- the sum of the thread-like dislocations is determined on the surface of the respective GaN sublayer.
- the difference in the sum of the thread-like dislocations at the interface between the second GaN sublayer and the first GaN sublayer is between 2 and 1000 or between 5 and 40.
- the interface comprises the bottom of the second GaN sublayer and the top of the first GaN sublayer.
- the surface density of the thread-like dislocations in the first GaN partial layer is in a range between 2*10 9 cm' 2 and l*10 10 cm' 2 and the surface density of the thread-like dislocations in the second GaN partial layer is in a range between l*10 7 cm' 2 and l*10 9 cm' 2 .
- the surface density of the thread-like dislocations on the underside in the first GaN partial layer is greater than 5*1O 10 cm' 2 . Furthermore, the surface density of the thread-like dislocations on the top of the first GaN sublayer is in a range between 2*10 9 cm' 2 and l*10 10 cm' 2 and the surface density of the thread-like dislocations on the top of the second GaN sublayer is in an area between l*10 7 cm' 2 and l*10 9 cm' 2 .
- the first GaN partial layer in contrast to the second GaN partial layer, has a larger total number of thread-like dislocations with an oblique course.
- oblique course refers to the course of the thread-like dislocations within the respective GaN sublayer deviating from a vertical direction, i.e. deviating from the direction of the normal on the top of the respective GaN sublayer.
- the course of the thread-like dislocations within the respective GaN partial layer has both vertical or, in a first approximation, vertical sections and that the course only assumes an oblique course as the length of the thread-like dislocation increases. It is desirable that the oblique course of the thread-like dislocations is as horizontal as possible, ie parallel the top of the respective GaN partial layer.
- At least 50% or at least 80% of the thread-like dislocations in the first GaN sublayer have an oblique course.
- the dislocation angle is greater than 10° or 30° or 50°.
- the step angle in the first GaN partial layer for the oblique thread-like dislocations is greater than 50° or greater than 30°.
- the ratio of the thickness of the second GaN sublayer to the thickness of the first GaN sublayer is in a range between 1 and 100, or in a range between 1 and 10, or in a range between 1 and 3.
- the thickness of the first GaN partial layer is in a range between 50 nm and 300 nm and / or the thickness of the second GaN partial layer is in a range between 300 nm and 5000 nm.
- the first GaN layer has a total layer thickness of at least 0.35 pm and a maximum thickness of 5 pm.
- MOVPE is a possible and common process for producing the GaN layers.
- GaN layers can also be produced using processes such as MBE or LPE or HVPE.
- both the first GaN sublayer and the second GaN sublayer have a carbon concentration that is unintentionally and inevitably generated, i.e., as explained above, necessarily generated by the deposition process.
- the carbon concentration is greater in the first GaN sublayer than in the second GaN sublayer.
- At least one deposition process parameter in the formation of the first GaN sublayer differs from one of the deposition process parameters for the formation of the second GaN sublayer, as a result of which the second GaN sublayer has a higher unintentional and unavoidable carbon concentration than the first GaN sublayer.
- the ratio of the unintentional and unavoidable carbon concentration between the second GaN sublayer and that of the first GaN sublayer is in a range between 2 and 1000 or in a range between 4 and 200 or in a range between 10 and 100.
- the unintentional and unavoidable carbon concentration in the first GaN sublayer is constant or decreases in the direction towards the second GaN sublayer.
- the unintentional and unavoidable carbon concentration is constant or decreases along the path from the interface between the transition layer and the first GaN sublayer to the interface between the first GaN sublayer and the second GaN sublayer.
- the unintentional and unavoidable carbon concentration in the first GaN sublayer is in a range between 1*10 17 cm' 3 and 5*10 18 cm' 3 and in the second GaN sublayer the unintentional and unavoidable carbon concentration is in a range between 5*10 15 cm' 3 and 5*10 16 cm' 3 .
- both the first GaN sublayer and the second GaN sublayer have an oxygen concentration that is unintentionally and inevitably generated, ie, as explained above, forcibly generated by the deposition process. The oxygen concentration is greater in the first GaN sublayer than in the second GaN sublayer.
- At least one deposition process parameter in the formation of the first GaN sublayer differs from one of the deposition process parameters for the formation of the second GaN sublayer, as a result of which the second GaN sublayer has a higher unintentional and unavoidable oxygen concentration than the first GaN sublayer.
- the ratio of unintentional and unavoidable oxygen concentration at the boundary layer between the second GaN partial layer and the first GaN partial layer is in a range between 2 and 5000 or in a range between 4 and 200 or in a range between 10 and 100.
- the unintentional and unavoidable oxygen concentration in the first GaN sublayer is constant or decreases in the direction of the second GaN sublayer.
- the unintentional and unavoidable oxygen concentration is constant or decreases along the path from the interface between the transition layer and the first GaN sublayer to the interface between the first GaN sublayer and the second GaN sublayer.
- the unintentional and unavoidable oxygen concentration in the first GaN sublayer is in a range between 2*10 17 cm' 3 and 5*10 18 cm' 3 and in the second GaN sublayer the unintentional and unavoidable oxygen concentration is in a range of l*10 15 cm' 3 and l*10 17 cm' 3 .
- the density of the filamentary dislocations in the first GaN sublayer is at least 2 times and at most 1000 times as large as the density of the filamentary dislocations in the second GaN sublayer.
- a plurality of spots that are integrally formed with the upper side and that contain oxygen are formed on the upper side of the silicon layer of the substrate.
- the oxide spots are formed on the upper side of the silicon layer and below the transition layer.
- the oxygen-containing spots cover at least 0.005% and at most 35% of the top surface of the substrate.
- the oxygen-containing spots cover at least 5% and at most 50% of the top surface of the substrate.
- the layers are each formed over the entire surface.
- the term “entire surface” refers to the entire surface of the semiconductor wafer.
- the spots consist predominantly of silicon oxide, i.e. consist of oxide or at least include oxide. In other words, the oxide spots remain and are removed from the subsequent layers Under no circumstances, however, do the oxide spots form a coherent layer on the top of the silicon layer.
- the spots can be used to improve the quality of the semiconductor buffer layer sequence, i.e. the GaN layers on the respective top side.
- the coalescence during the growth of the semiconductor buffer layer sequence can be improved.
- the oxygen-containing spots preferably cover a minimum of 0.2% to a maximum of 20% or a minimum of 0.01% to a maximum of 30% or a minimum of 0.1% to a maximum of 25% of the top side of the substrate and are cohesive with the top side of the substrate tied together.
- the spots containing oxygen each have an extent of at least 10 nm or at least 50 nm or at least 100 nm. The spots can have a wide variety of shapes.
- the spots containing oxygen each have an extension of a maximum of 5 m or a maximum of 1 pm or a maximum of 0.5 pm.
- the oxygen-containing spots have a thickness in a range between a monolayer and 4 nm, with the thickness of the monolayer being approximately 0.4 nm.
- the oxygen-containing spots comprise or consist of a silicon dioxide and/or a silicon monoxide, collectively referred to below as silicon oxide.
- the silicon oxide is formed as a naturally grown oxide. Natural oxide, i.e. silicon oxide, grows in an oxygen-containing environment.
- the density of natural oxide is below the density of a thermally grown oxide.
- Naturally grown oxide is understood here to mean a silicon oxide that is preferably formed at room temperature, but most preferably at a temperature below 100°C or below 200°C.
- the thickness of the natural oxide is between a monolayer, i.e. approximately 0.4 nm and 4 nm. In a further development, the thickness of the natural oxide is between 1 nm and 2 nm.
- a thermally grown oxide is understood here to mean a silicon oxide that is preferably grown at a temperature above 500°C.
- the density of the thermal oxide is more than 30% higher than that of the natural oxide.
- the oxygen-containing patches include silicon oxide and oxynitride, or are made of silicon oxide, or are made of oxynitride.
- the oxygen-containing spots on the top are almost evenly distributed.
- the term “uniformly distributed” means that the spots are evenly distributed over the entire surface of the semiconductor wafer.
- the number of spots on an area of the wafer that comprises at least 20% of the total area is not more than 50% of the number of spots in a second equally large area on the semiconductor wafer differs.
- the semiconductor buffer layer sequence has a thickness of at least 1 pm or at least 4 pm and a maximum thickness of 30 pm. In one embodiment, the semiconductor buffer layer sequence has a thickness of between 0.5 pm and 10 pm or between 1.0 pm and 5 pm on the top side.
- the transition layer comprises or consists of a layer sequence of at least two different layers.
- the transition layer has a nucleation layer consisting of AlN and completely or partially covering the upper side of the substrate.
- the nucleation layer has a layer thickness of at least 5 nm and at most 50 nm. It is understood that if oxide spots are present on the upper side of the substrate, the nucleation layer at least partially covers the oxide spots.
- the nucleation layer has a plurality of holes.
- the proportion of the area of the holes on the top side of the nucleation layer, ie the total hole area, is between 1% and 30% of the total area of the nucleation layer.
- the proportion of the total hole area is calculated from the total area of the holes on the entire layer area divided by the total area of the nucleation layer. If the transition layer on a top side consists exclusively of the top side of the nucleation layer, it is understood that the transition layer has the distribution and number of holes of the nucleation layer.
- the holes are, in a first approximation, evenly distributed over the entire surface of the nucleation layer.
- the hole area is in a range between 5% and 20% based on the entire surface of the nucleation layer.
- a masking layer comprising (Al)GaN or consisting of (Al)GaN is formed on the nucleation layer and at least partially covers the nucleation layer.
- the masking layer has a surface and an aluminum content between 0% and 10% based on all elements of III. main group of the periodic table.
- the thickness of the masking layer has a layer thickness of at least 100 nm or at least 300 nm and a maximum of 900 nm. In another development, the masking layer has a thickness between 400 nm and 600 nm.
- the first GaN layer is formed on the masking layer.
- the first GaN layer is formed directly on the surface of the masking layer.
- a sequence of an intermediate layer and a second layer comprising GaN is formed on the first GaN layer.
- the second GaN layer comprises a first GaN sublayer or consists of a first GaN sublayer.
- the second GaN layer comprises a first GaN sublayer and a second GaN sublayer or the second GaN layer consists of a first GaN sublayer and a second GaN sublayer.
- a plurality of sequences are formed on the first GaN layer. At least one sequence and at most 10 sequences are formed on the first GaN layer.
- the sequence has a thickness between 0.5 pm and 10 pm or between 1.0 pm and 5 pm. In a further development, the sequence has a thickness of at least 1 pm or of at least 4 pm and at most a thickness of 30 pm.
- the intermediate layer includes AI.
- the intermediate layer comprises AIGaN or consists of AIGaN.
- FIG. 1 shows a cross section of a semiconductor wafer with a GaN layer, the GaN layer being divided into a first GaN partial layer and a second GaN partial layer,
- Figure 3 shows a cross section on a semiconductor wafer with a further embodiment of the layer arrangement
- Figure 4 shows a cross section on a semiconductor wafer with a detailed view of the differences in the thread-like dislocations between the first GaN partial layer and the second GaN partial layer.
- the layer arrangements shown below above the substrate are part of a semiconductor buffer layer sequence, with a so-called active layer for producing GaN semiconductor components being formed above the semiconductor buffer layer sequence, which is generally not to be viewed as part of the semiconductor buffer layer sequence.
- FIG. 1 shows a cross-sectional view of a semiconductor wafer consisting of a substrate 10, preferably a silicon substrate, with an upper side OS and a lower side US.
- the substrate 10 consists of monocrystalline silicon at least on the top and has a diameter of at least 100 mm.
- a transition layer UES with a top side OF is formed on the top side OS of the substrate 10, wherein the transition layer UES is integrally connected to the substrate 10.
- a first GaN layer GS is integrally arranged on the top side OF of the transition layer UES.
- the first GaN layer GS comprises or consists of a first GaN sublayer GN1 with a thickness D1 and a second GaN sublayer GN2 with a thickness D2, wherein the thickness of the first GaN sublayer GN1 is less than or equal to the thickness D2 of the second GaN sublayer.
- An interface GRZ is formed between the first GaN sublayer GN1 and the second GaN sublayer GN2.
- An intermediate layer ZW is formed above the first GaN layer.
- the intermediate layer ZW is cohesively connected to the top of the first GaN layer GS.
- a further GaN layer GAU is formed on the top of the intermediate layer ZW.
- the intermediate layer ZW and the further GaN layer together form a sequence AF.
- the further GaN layer GAU comprises or consists of a first GaN sublayer and/or a second GaN sublayer.
- FIG. 2 shows the course of the lattice constant of the semiconductor wafer, shown in connection with the illustration in FIG. 1. Only the differences from the illustration in FIG. 1 are explained below.
- the first GaN sublayer GN1 has a first lattice constant Gl.
- the second GaN sublayer GN2 has a second lattice constant G2.
- the first lattice constant GN1 and the second lattice constant GN2 are almost equal or exactly the same.
- spots OXF are shown in dashed lines, i.e. optionally containing oxygen. It should be noted that the spots OXF, referred to below as oxide spots, are distributed as evenly as possible on the top side OS, but the spots OXF have irregular outlines and sizes (not shown) and cover at least 0.005% and a maximum of 50% of the top side OS of the substrate 10.
- the optional spots OXF are shown as part of the transition layer UES.
- the transition layer UES comprises a nucleation layer NUS and a masking layer MASK formed on the nucleation layer NUS.
- the masking layer MASK forms the top surface OF of the transition layer UES.
- a thin connection layer VS is optionally arranged at the interface GRZ between the first GaN sublayer GN1 and the second GaN sublayer GN2.
- connection layer VS has the same lattice constant as the underlying first GaN sublayer GN1.
- FIG. 4 shows a cross section on a semiconductor wafer with a detailed view of the first GaN layer GS with differences in thread-like dislocations FV between the first GaN partial layer GN1 and the second GaN partial layer GN2.
- the second GaN partial layer GN2 has, on average, a smaller number of thread-like dislocations FV than the first GaN partial layer GN1.
- the thread-like dislocations FV in the first GaN partial layer GN1 also usually have a more oblique course than the thread-like dislocations FV in the second GaN partial layer GN2.
- the first GaN sublayer has a lower quality than the second GaN sublayer GN2.
- the number of thread-like dislocations FV in the second GaN sublayer GN2 is also smaller than in the first GaN sublayer GN1.
- the size of the crystallites in the second GaN partial layer GN2 is also significantly larger than in the first GaN partial layer GN1.
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380061962.5A CN119768893A (zh) | 2022-09-30 | 2023-08-27 | 用于构造GaN半导体结构元件的具有GaN中间层的半导体晶片 |
| EP23768783.5A EP4533523A1 (de) | 2022-09-30 | 2023-08-27 | HALBLEITERSCHEIBE MIT GaN-ZWISCHENSCHICHTEN ZUR AUSBILDUNG VON GaN-HALBLEITERBAUELEMENTEN |
| US19/096,490 US20250226215A1 (en) | 2022-09-30 | 2025-03-31 | Semiconductor wafer having gan intermediate layers for forming semiconductor components |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022003646.0 | 2022-09-30 | ||
| DE102022003646.0A DE102022003646A1 (de) | 2022-09-30 | 2022-09-30 | Halbleiterscheibe zur Ausbildung von GaN-Halbleiterbauelementen |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US19/096,490 Continuation US20250226215A1 (en) | 2022-09-30 | 2025-03-31 | Semiconductor wafer having gan intermediate layers for forming semiconductor components |
Publications (1)
| Publication Number | Publication Date |
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| WO2024068041A1 true WO2024068041A1 (de) | 2024-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| PCT/EP2023/000054 Ceased WO2024068041A1 (de) | 2022-09-30 | 2023-08-27 | Halbleiterscheibe mit gan-zwischenschichten zur ausbildung von gan-halbleiterbauelementen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250226215A1 (de) |
| EP (1) | EP4533523A1 (de) |
| CN (1) | CN119768893A (de) |
| DE (1) | DE102022003646A1 (de) |
| TW (1) | TWI850108B (de) |
| WO (1) | WO2024068041A1 (de) |
Citations (10)
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| EP1109208A2 (de) * | 1999-12-14 | 2001-06-20 | Riken | Herstellungsverfahren für eine Halbleiterschicht |
| US20020190259A1 (en) * | 2001-05-29 | 2002-12-19 | Werner Goetz | III-Nitride light emitting devices with low driving voltage |
| DE10256911A1 (de) | 2002-11-30 | 2004-06-17 | Armin Dr. Dadgar | Gruppe-III-Nitrid Transistorbauelement auf einem Siliziumsubstrat |
| US20060281284A1 (en) | 2005-06-08 | 2006-12-14 | Christopher Harris | Method of manufacturing gallium nitride based high-electron mobility devices |
| DE102006008929A1 (de) | 2006-02-23 | 2007-08-30 | Azzurro Semiconductors Ag | Nitridhalbleiter-Bauelement und Verfahren zu seiner Herstellung |
| US20130087762A1 (en) | 2011-10-11 | 2013-04-11 | Kabushiki Kaisha Toshiba | Nitride semiconductor wafer, nitride semiconductor device, and method for growing nitride semiconductor crystal |
| EP2602812A1 (de) * | 2011-12-09 | 2013-06-12 | Power Integrations, Inc. | Hochqualitäts-GAN Hochspannungs-HFETS auf Silicium |
| EP2767620A1 (de) | 2013-02-15 | 2014-08-20 | Azzurro Semiconductors AG | P-doping einer Gruppe-III-Nitridpufferschichtstruktur auf einem Heterosubstrat |
| US20150118800A1 (en) * | 2010-09-28 | 2015-04-30 | Young-jo Tak | Semiconductor devices and methods of manufacturing the same |
| EP3904567A1 (de) * | 2018-12-25 | 2021-11-03 | Air Water Inc. | Verbundhalbleitersubstrat |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8796738B2 (en) | 2011-09-21 | 2014-08-05 | International Rectifier Corporation | Group III-V device structure having a selectively reduced impurity concentration |
| DE102018101558A1 (de) | 2018-01-24 | 2019-07-25 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung eines Nitrid-Verbindungshalbleiter-Bauelements |
-
2022
- 2022-09-30 DE DE102022003646.0A patent/DE102022003646A1/de active Pending
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2023
- 2023-08-27 WO PCT/EP2023/000054 patent/WO2024068041A1/de not_active Ceased
- 2023-08-27 CN CN202380061962.5A patent/CN119768893A/zh active Pending
- 2023-08-27 EP EP23768783.5A patent/EP4533523A1/de active Pending
- 2023-09-14 TW TW112135039A patent/TWI850108B/zh active
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2025
- 2025-03-31 US US19/096,490 patent/US20250226215A1/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1109208A2 (de) * | 1999-12-14 | 2001-06-20 | Riken | Herstellungsverfahren für eine Halbleiterschicht |
| US20020190259A1 (en) * | 2001-05-29 | 2002-12-19 | Werner Goetz | III-Nitride light emitting devices with low driving voltage |
| DE10256911A1 (de) | 2002-11-30 | 2004-06-17 | Armin Dr. Dadgar | Gruppe-III-Nitrid Transistorbauelement auf einem Siliziumsubstrat |
| US20060281284A1 (en) | 2005-06-08 | 2006-12-14 | Christopher Harris | Method of manufacturing gallium nitride based high-electron mobility devices |
| DE102006008929A1 (de) | 2006-02-23 | 2007-08-30 | Azzurro Semiconductors Ag | Nitridhalbleiter-Bauelement und Verfahren zu seiner Herstellung |
| US20150118800A1 (en) * | 2010-09-28 | 2015-04-30 | Young-jo Tak | Semiconductor devices and methods of manufacturing the same |
| US20130087762A1 (en) | 2011-10-11 | 2013-04-11 | Kabushiki Kaisha Toshiba | Nitride semiconductor wafer, nitride semiconductor device, and method for growing nitride semiconductor crystal |
| EP2602812A1 (de) * | 2011-12-09 | 2013-06-12 | Power Integrations, Inc. | Hochqualitäts-GAN Hochspannungs-HFETS auf Silicium |
| EP2767620A1 (de) | 2013-02-15 | 2014-08-20 | Azzurro Semiconductors AG | P-doping einer Gruppe-III-Nitridpufferschichtstruktur auf einem Heterosubstrat |
| EP3904567A1 (de) * | 2018-12-25 | 2021-11-03 | Air Water Inc. | Verbundhalbleitersubstrat |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202430733A (zh) | 2024-08-01 |
| CN119768893A (zh) | 2025-04-04 |
| EP4533523A1 (de) | 2025-04-09 |
| TWI850108B (zh) | 2024-07-21 |
| DE102022003646A1 (de) | 2024-04-04 |
| US20250226215A1 (en) | 2025-07-10 |
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