JP7285629B2 - GaNデバイスのための非対称プラグ技術 - Google Patents
GaNデバイスのための非対称プラグ技術 Download PDFInfo
- Publication number
- JP7285629B2 JP7285629B2 JP2018175459A JP2018175459A JP7285629B2 JP 7285629 B2 JP7285629 B2 JP 7285629B2 JP 2018175459 A JP2018175459 A JP 2018175459A JP 2018175459 A JP2018175459 A JP 2018175459A JP 7285629 B2 JP7285629 B2 JP 7285629B2
- Authority
- JP
- Japan
- Prior art keywords
- interconnect
- contact
- plug
- hfet
- active layer
- 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.)
- Active
Links
- 239000010410 layer Substances 0.000 claims description 157
- 238000002161 passivation Methods 0.000 claims description 64
- 239000004065 semiconductor Substances 0.000 claims description 53
- 229910052751 metal Inorganic materials 0.000 claims description 52
- 239000002184 metal Substances 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 238000000151 deposition Methods 0.000 claims description 18
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 14
- 239000011229 interlayer Substances 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 6
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 6
- 230000005669 field effect Effects 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 230000008569 process Effects 0.000 description 15
- 235000012239 silicon dioxide Nutrition 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 229910002601 GaN Inorganic materials 0.000 description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- AJGDITRVXRPLBY-UHFFFAOYSA-N aluminum indium Chemical compound [Al].[In] AJGDITRVXRPLBY-UHFFFAOYSA-N 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000004151 rapid thermal annealing Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 229910001258 titanium gold Inorganic materials 0.000 description 2
- 229910016570 AlCu Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- VYRNMWDESIRGOS-UHFFFAOYSA-N [Mo].[Au] Chemical compound [Mo].[Au] VYRNMWDESIRGOS-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 1
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
- MSNOMDLPLDYDME-UHFFFAOYSA-N gold nickel Chemical compound [Ni].[Au] MSNOMDLPLDYDME-UHFFFAOYSA-N 0.000 description 1
- ZNKMCMOJCDFGFT-UHFFFAOYSA-N gold titanium Chemical compound [Ti].[Au] ZNKMCMOJCDFGFT-UHFFFAOYSA-N 0.000 description 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(iv) oxide Chemical compound O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- -1 nitride compounds Chemical class 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 238000012995 silicone-based technology Methods 0.000 description 1
- 230000005533 two-dimensional electron gas Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28575—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising AIIIBV compounds
- H01L21/28587—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising AIIIBV compounds characterised by the sectional shape, e.g. T, inverted T
- H01L21/28593—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising AIIIBV compounds characterised by the sectional shape, e.g. T, inverted T asymmetrical sectional shape
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
- H01L21/76805—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics the opening being a via or contact hole penetrating the underlying conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/481—Internal lead connections, e.g. via connections, feedthrough structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/482—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of lead-in layers inseparably applied to the semiconductor body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/2003—Nitride compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/201—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds including two or more compounds, e.g. alloys
- H01L29/205—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds including two or more compounds, e.g. alloys in different semiconductor regions, e.g. heterojunctions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41766—Source or drain electrodes for field effect devices with at least part of the source or drain electrode having contact below the semiconductor surface, e.g. the source or drain electrode formed at least partially in a groove or with inclusions of conductor inside the semiconductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66446—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET]
- H01L29/66462—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET] with a heterojunction interface channel or gate, e.g. HFET, HIGFET, SISFET, HJFET, HEMT
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
- H01L29/7786—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
- H01L29/7786—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT
- H01L29/7787—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT with wide bandgap charge-carrier supplying layer, e.g. direct single heterostructure MODFET
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Junction Field-Effect Transistors (AREA)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Description
Claims (18)
- ヘテロ構造電界効果トランジスタ(HFET)であって、
前記HFETが、
第1のバンドギャップをもつ第1の半導体材料を含む第1の活性層と、
第2のバンドギャップをもつ第2の半導体材料を含む第2の活性層と、
前記第1のバンドギャップと前記第2のバンドギャップとの間におけるバンドギャップエネルギーの差に応じて前記第1の活性層と前記第2の活性層との近くに形成された電荷層と、
前記第2の活性層の近くに位置するゲート誘電体であって、前記第2の活性層が前記第1の活性層と前記ゲート誘電体との間に位置する、ゲート誘電体と、
接点領域と、
を備え、
前記接点領域が、
a)前記HFETから電荷を供給または引き抜くように結合された接点と、
b)前記接点と前記ゲート誘電体との近くに位置するパッシベーション層であって、前記接点の少なくとも一部が前記パッシベーション層と前記第2の活性層との間に位置する、パッシベーション層と、
c)中間層誘電体と、
d)非対称プラグ相互接続構造物と、
を含み、
前記非対称プラグ相互接続構造物が、
前記パッシベーション層を通って延びた、および前記接点に結合された相互接続体であって、前記パッシベーション層が前記相互接続体の第1の部分と前記第2の活性層との間に位置するように、前記相互接続体の前記第1の部分が前記パッシベーション層上に位置しており、および前記相互接続体の第2の部分が前記パッシベーション層を通って延びており、断面側面を見たとき前記相互接続体の前記第2の部分が台形を実質的に形成しており、前記台形の第1の平行側部が金属を含み、および前記接点に結合されており、前記台形の非平行側部が金属を含み、前記台形の第2の平行側部が酸化物を含み、および前記第1の平行側部より大きく、前記中間層誘電体が前記相互接続体の近くに位置し、前記相互接続体の前記第1の部分が前記中間層誘電体と前記パッシベーション層との間に位置している、相互接続体と、
前記中間層誘電体内に延びたプラグであって、前記プラグが前記相互接続体の前記第1の部分の上方に形成されており、および前記相互接続体の前記第1の部分に結合された、プラグと、
を含む、
HFET。 - 前記相互接続体が、窪んだ中心部をもち、
酸化物が、前記窪んだ中心部を充填している、
請求項1に記載のHFET。 - 前記パッシベーション層が、前記接点と前記相互接続体の前記第1の部分との間に位置し、
前記相互接続体の前記第1の部分が、前記接点の第1の側と実質的に横方向に同一の範囲に広がった、
請求項1に記載のHFET。 - 前記中間層誘電体内に延びた、および、前記相互接続体の前記第1の部分に結合された、前記プラグを含む、複数のプラグをさらに備える、
請求項1に記載のHFET。 - 前記接点領域が、前記HFETのソース領域またはドレイン領域のうちの少なくとも1つに含まれる、
請求項4に記載のHFET。 - 前記HFETの前記ソース領域または前記ドレイン領域のうちの前記少なくとも1つにおいて前記半導体材料内において位置合わせされた前記接点領域を含む、複数の接点領域をさらに備える、
請求項5に記載のHFET。 - 前記接点領域における前記プラグが、前記複数の接点領域における第2の接点領域における第2のプラグより、前記HFETの第1の側に対してより近くに位置し、
前記第2のプラグが、前記HFETの前記第1の側の反対側にある第2の側に対してより近くに位置する、
請求項6に記載のHFET。 - 前記第2の接点領域の配向が、前記接点領域の鏡像である、
請求項7に記載のHFET。 - 前記プラグが、幅、長さ、および高さをもち、
前記プラグの前記長さが、前記幅より大きく、
前記高さが、前記中間層誘電体の厚さ以上である、
請求項1に記載のHFET。 - ヘテロ構造電界効果トランジスタ(HFET)における1つまたは複数の接点領域を形成する方法であって、前記方法が、
半導体材料の表面上に位置するゲート誘電体とともに、第1の活性層と第2の活性層とを含む前記半導体材料を提供することであって、前記第2の活性層が前記ゲート誘電体と前記第1の活性層との間に位置する、提供することと、
前記第2の活性層を通って前記第1の活性層内に延びた、前記半導体材料への接点を形成することと、
パッシベーション層を堆積させることであって、前記ゲート誘電体が前記パッシベーション層と前記第2の活性層との間に位置する、堆積させることと、
相互接続体とプラグとを備える非対称プラグ相互接続構造物を形成することと、
を含み、
前記非対称プラグ相互接続構造物を形成することが、
i)前記パッシベーション層を通って延びた、および前記接点に結合された前記相互接続体を形成することであって、前記パッシベーション層が前記相互接続体の第1の部分と前記第2の活性層との間に位置するように、前記相互接続体の前記第1の部分が前記パッシベーション層上に位置し、前記相互接続体を形成することが、前記パッシベーション層を通って前記接点まで延びた溝をエッチングすることと、前記相互接続体を形成するために前記溝内に金属を堆積させることであって、前記金属が、前記溝の壁を裏打ちし、前記溝内の前記金属が窪んだ中心部を規定し、酸化物が前記窪んだ中心部を充填する、堆積させることと、を含む、前記相互接続体を形成することと、
ii)前記相互接続体の上方に中間層誘電体を堆積させることであって、前記相互接続体の前記第1の部分が、前記中間層誘電体と前記パッシベーション層との間に位置する、堆積させることと、
iii)前記中間層誘電体内に延びた前記プラグを形成することであって、前記プラグが前記相互接続体の前記第1の部分の上方に形成され、および前記相互接続体の前記第1の部分に結合される、形成することと、
を含む、
方法。 - 前記金属を熱的にアニーリングすることをさらに含み、
前記接点が、前記第1の活性層および前記第2の活性層へのオーミック接点を形成するように結合された、
請求項10に記載の方法。 - 前記相互接続体を形成することが、
前記パッシベーション層を通って前記接点まで延びた溝をエッチングすることと、
前記溝内に、および前記パッシベーション層上に金属を堆積させて、前記相互接続体を形成することと、
を含み、
前記金属が、前記相互接続体の第2の部分において前記溝の壁を裏打ちし、前記相互接続体の前記第1の部分において、前記金属が、前記パッシベーション層と実質的に同一平面上にある、
請求項10に記載の方法。 - 前記相互接続体上にオルトケイ酸テトラエチル(TEOS)を堆積させて、シリコン酸化物を使用して前記相互接続体の前記第2の部分における空所を充填することとと、
前記接点を平坦化して、残留シリコン酸化物を除去することと、
をさらに含む、請求項12に記載の方法。 - 前記プラグを形成することが、
前記中間層誘電体を通って前記相互接続体の前記第1の部分まで延びた溝をエッチングすることと、
前記溝内に金属を堆積させて前記プラグを形成することと、
前記中間層誘電体を平坦化して、前記中間層誘電体の前記表面上に位置する残留金属を除去することと、
を含む、
請求項10に記載の方法。 - 前記プラグを形成することが、幅、長さ、および高さをもつ前記溝をエッチングすることを含み、
前記溝の前記長さが、前記幅より大きく、
前記高さが、前記中間層誘電体の厚さに等しい、
請求項14に記載の方法。 - 前記1つまたは複数の接点領域を含む複数の接点領域を形成することをさらに含み、
前記プラグが、前記複数の接点領域における第2の接点領域における第2のプラグより、前記HFETの第1の側に対してより近くに位置し、
前記第2のプラグが、前記HFETの前記第1の側の反対側にある第2の側に対してより近くに位置する、
請求項10に記載の方法。 - 前記第2の接点領域の配向が、前記1つまたは複数の接点領域の鏡像である、
請求項16に記載の方法。 - 前記接点領域を含む前記HFETのソース電極またはドレイン電極のうちの少なくとも1つを形成することをさらに含む、
請求項10に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/713,457 US10204791B1 (en) | 2017-09-22 | 2017-09-22 | Contact plug for high-voltage devices |
US15/713,457 | 2017-09-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019062197A JP2019062197A (ja) | 2019-04-18 |
JP7285629B2 true JP7285629B2 (ja) | 2023-06-02 |
Family
ID=63685588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018175459A Active JP7285629B2 (ja) | 2017-09-22 | 2018-09-19 | GaNデバイスのための非対称プラグ技術 |
Country Status (5)
Country | Link |
---|---|
US (4) | US10204791B1 (ja) |
EP (1) | EP3460841B1 (ja) |
JP (1) | JP7285629B2 (ja) |
CN (2) | CN109616521B (ja) |
TW (3) | TWI807925B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10204791B1 (en) * | 2017-09-22 | 2019-02-12 | Power Integrations, Inc. | Contact plug for high-voltage devices |
US12034053B2 (en) * | 2019-05-30 | 2024-07-09 | National Research Council Of Canada | Ohmic contacts with direct access pathways to two-dimensional electron sheets |
KR102419831B1 (ko) * | 2020-11-25 | 2022-07-11 | 경희대학교 산학협력단 | 고효율 열전달을 위한 2차원 절연물질을 게이트 절연체로 집적한 트랜지스터 |
JP7423569B2 (ja) | 2021-03-23 | 2024-01-29 | 株式会社東芝 | 半導体装置 |
CN113889412B (zh) * | 2021-12-07 | 2022-02-22 | 浙江集迈科微电子有限公司 | 欧姆接触GaN器件及其制备方法 |
US20240222423A1 (en) * | 2022-01-25 | 2024-07-04 | Innoscience (suzhou) Semiconductor Co., Ltd. | GaN-BASED SEMICONDUCTOR DEVICE WITH REDUCED LEAKAGE CURRENT AND METHOD FOR MANUFACTURING THE SAME |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009200256A (ja) | 2008-02-21 | 2009-09-03 | Toshiba Corp | 半導体装置の製造方法 |
JP2011187946A (ja) | 2010-02-16 | 2011-09-22 | Internatl Rectifier Corp | はんだ濡れ性の前面金属部を備えるiii族窒化物パワーデバイス |
JP2013131758A (ja) | 2011-12-21 | 2013-07-04 | Power Integrations Inc | 半導体装置 |
JP2013219273A (ja) | 2012-04-11 | 2013-10-24 | Sharp Corp | 窒化物半導体装置 |
US20140264452A1 (en) | 2013-03-15 | 2014-09-18 | Semiconductor Components Industries, Llc | Method of forming a hemt semiconductor device and structure therefor |
CN205564759U (zh) | 2016-05-06 | 2016-09-07 | 杭州电子科技大学 | 一种新型增强型iii-v异质结场效应晶体管 |
US20170154839A1 (en) | 2013-09-10 | 2017-06-01 | Delta Electronics, Inc. | Semiconductor device |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3717227B2 (ja) * | 1996-03-29 | 2005-11-16 | 株式会社ルネサステクノロジ | 入力/出力保護回路 |
US5846876A (en) * | 1996-06-05 | 1998-12-08 | Advanced Micro Devices, Inc. | Integrated circuit which uses a damascene process for producing staggered interconnect lines |
US6455880B1 (en) * | 1998-11-06 | 2002-09-24 | Kabushiki Kaisha Toshiba | Microwave semiconductor device having coplanar waveguide and micro-strip line |
US6649517B2 (en) * | 2001-05-18 | 2003-11-18 | Chartered Semiconductor Manufacturing Ltd. | Copper metal structure for the reduction of intra-metal capacitance |
DE10142690A1 (de) * | 2001-08-31 | 2003-03-27 | Infineon Technologies Ag | Kontaktierung des Emitterkontakts einer Halbleitervorrichtung |
JP5300238B2 (ja) * | 2006-12-19 | 2013-09-25 | パナソニック株式会社 | 窒化物半導体装置 |
JP2009038103A (ja) * | 2007-07-31 | 2009-02-19 | Fujitsu Microelectronics Ltd | 半導体装置の製造方法と半導体装置 |
US8946780B2 (en) * | 2011-03-01 | 2015-02-03 | National Semiconductor Corporation | Ohmic contact schemes for group III-V devices having a two-dimensional electron gas layer |
KR20130013189A (ko) * | 2011-07-27 | 2013-02-06 | 삼성전자주식회사 | 파워 반도체 소자 |
US8946776B2 (en) * | 2012-06-26 | 2015-02-03 | Freescale Semiconductor, Inc. | Semiconductor device with selectively etched surface passivation |
TWI566328B (zh) * | 2013-07-29 | 2017-01-11 | 高效電源轉換公司 | 具有用於產生附加構件之多晶矽層的氮化鎵電晶體 |
JP6558359B2 (ja) * | 2014-02-24 | 2019-08-14 | パナソニック株式会社 | 半導体装置 |
KR101972439B1 (ko) | 2014-03-07 | 2019-04-25 | 한양대학교 산학협력단 | 기체 차단 특성이 향상된 그래핀 옥사이드 나노복합막 및 그 제조방법 |
US9960154B2 (en) * | 2014-09-19 | 2018-05-01 | Navitas Semiconductor, Inc. | GaN structures |
JP2016171265A (ja) * | 2015-03-13 | 2016-09-23 | 株式会社東芝 | 半導体装置およびその製造方法 |
US9941384B2 (en) * | 2015-08-29 | 2018-04-10 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor device and method for fabricating the same |
US11322599B2 (en) * | 2016-01-15 | 2022-05-03 | Transphorm Technology, Inc. | Enhancement mode III-nitride devices having an Al1-xSixO gate insulator |
US10141438B2 (en) * | 2016-03-07 | 2018-11-27 | Taiwan Semiconductor Manufacturing Company Ltd. | Semiconductor structure and manufacturing method thereof |
CN108738347B (zh) | 2016-03-10 | 2022-01-14 | 国立癌症研究中心 | 辅助肝细胞癌患者的再发风险预测的方法、装置、计算机程序制品及试剂盒 |
EP3252824B1 (en) * | 2016-05-30 | 2021-10-20 | STMicroelectronics S.r.l. | High-power and high-frequency heterostructure field-effect transistor |
US10204791B1 (en) * | 2017-09-22 | 2019-02-12 | Power Integrations, Inc. | Contact plug for high-voltage devices |
-
2017
- 2017-09-22 US US15/713,457 patent/US10204791B1/en active Active
-
2018
- 2018-09-19 TW TW111127106A patent/TWI807925B/zh active
- 2018-09-19 TW TW112124478A patent/TWI850004B/zh active
- 2018-09-19 JP JP2018175459A patent/JP7285629B2/ja active Active
- 2018-09-19 TW TW107132951A patent/TWI773828B/zh active
- 2018-09-20 EP EP18195756.4A patent/EP3460841B1/en active Active
- 2018-09-21 CN CN201811108439.0A patent/CN109616521B/zh active Active
- 2018-09-21 CN CN202410360127.8A patent/CN118315420A/zh active Pending
- 2018-12-14 US US16/221,027 patent/US10665463B2/en active Active
-
2020
- 2020-04-23 US US16/857,049 patent/US11373873B2/en active Active
-
2022
- 2022-05-25 US US17/824,287 patent/US11776815B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009200256A (ja) | 2008-02-21 | 2009-09-03 | Toshiba Corp | 半導体装置の製造方法 |
JP2011187946A (ja) | 2010-02-16 | 2011-09-22 | Internatl Rectifier Corp | はんだ濡れ性の前面金属部を備えるiii族窒化物パワーデバイス |
JP2013131758A (ja) | 2011-12-21 | 2013-07-04 | Power Integrations Inc | 半導体装置 |
JP2013219273A (ja) | 2012-04-11 | 2013-10-24 | Sharp Corp | 窒化物半導体装置 |
US20140264452A1 (en) | 2013-03-15 | 2014-09-18 | Semiconductor Components Industries, Llc | Method of forming a hemt semiconductor device and structure therefor |
US20170154839A1 (en) | 2013-09-10 | 2017-06-01 | Delta Electronics, Inc. | Semiconductor device |
CN205564759U (zh) | 2016-05-06 | 2016-09-07 | 杭州电子科技大学 | 一种新型增强型iii-v异质结场效应晶体管 |
Also Published As
Publication number | Publication date |
---|---|
US11776815B2 (en) | 2023-10-03 |
EP3460841B1 (en) | 2021-11-03 |
TW202306171A (zh) | 2023-02-01 |
TW201916378A (zh) | 2019-04-16 |
CN109616521B (zh) | 2024-03-08 |
TWI773828B (zh) | 2022-08-11 |
US10665463B2 (en) | 2020-05-26 |
TWI807925B (zh) | 2023-07-01 |
TWI850004B (zh) | 2024-07-21 |
US20220406607A1 (en) | 2022-12-22 |
TW202345407A (zh) | 2023-11-16 |
CN118315420A (zh) | 2024-07-09 |
US20190139776A1 (en) | 2019-05-09 |
CN109616521A (zh) | 2019-04-12 |
EP3460841A1 (en) | 2019-03-27 |
US20200258749A1 (en) | 2020-08-13 |
US10204791B1 (en) | 2019-02-12 |
US11373873B2 (en) | 2022-06-28 |
JP2019062197A (ja) | 2019-04-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7285629B2 (ja) | GaNデバイスのための非対称プラグ技術 | |
US10411123B2 (en) | High-power and high-frequency heretostructure field-effect transistor | |
US9196731B2 (en) | Semiconductor device | |
JP7065370B2 (ja) | 半導体デバイス及びその製造方法 | |
TWI809333B (zh) | 具有改良汲極存取區域的三族氮化物電晶體 | |
US8859354B2 (en) | Transistors and fabrication method thereof | |
US10134872B2 (en) | Semiconductor device and a method for fabricating the same | |
TWI661555B (zh) | 增強型高電子遷移率電晶體元件 | |
JP6240460B2 (ja) | 電界効果型化合物半導体装置及びその製造方法 | |
CN114586175B (zh) | 半导体器件以及制造半导体器件的方法 | |
TW201727717A (zh) | 半導體裝置結構及其製造方法 | |
CN112490285A (zh) | 半导体装置及其制作方法 | |
CN114175268B (zh) | 氮化物基半导体装置及其制造方法 | |
TW201635526A (zh) | 半導體裝置及其製造方法 | |
JP2019040961A (ja) | 窒化物半導体装置 | |
CN113924655B (zh) | 半导体器件及其制造方法 | |
TW202414543A (zh) | 半導體裝置及半導體裝置之製造方法 | |
TW202425325A (zh) | 高電子遷移率電晶體及其製造方法 | |
CN118202454A (zh) | 半导体器件及其制造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD13 | Notification of appointment of power of sub attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7433 Effective date: 20210409 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210902 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20220907 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220913 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20221208 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230411 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20230502 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230523 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7285629 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |