JP4563938B2 - 電界効果トランジスタを製造する方法 - Google Patents
電界効果トランジスタを製造する方法 Download PDFInfo
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- JP4563938B2 JP4563938B2 JP2005508810A JP2005508810A JP4563938B2 JP 4563938 B2 JP4563938 B2 JP 4563938B2 JP 2005508810 A JP2005508810 A JP 2005508810A JP 2005508810 A JP2005508810 A JP 2005508810A JP 4563938 B2 JP4563938 B2 JP 4563938B2
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- 230000005669 field effect Effects 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 41
- 239000004065 semiconductor Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 27
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 19
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 18
- 239000012535 impurity Substances 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000007943 implant Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 99
- 108091006146 Channels Proteins 0.000 description 29
- 238000005468 ion implantation Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000001459 lithography Methods 0.000 description 6
- 102000004129 N-Type Calcium Channels Human genes 0.000 description 5
- 108090000699 N-Type Calcium Channels Proteins 0.000 description 5
- -1 Si 3 N 4 Chemical class 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000001015 X-ray lithography Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000000609 electron-beam lithography Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
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- 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
- H01L29/66893—Unipolar field-effect transistors with a PN junction gate, i.e. JFET
- H01L29/66924—Unipolar field-effect transistors with a PN junction gate, i.e. JFET with an active layer made of a group 13/15 material
-
- 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
-
- 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
- H01L29/66053—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide
- H01L29/66068—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide 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
-
- 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
- H01L29/66007—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
- H01L29/66848—Unipolar field-effect transistors with a Schottky gate, i.e. MESFET
- H01L29/66856—Unipolar field-effect transistors with a Schottky gate, i.e. MESFET with an active layer made of a group 13/15 material
- H01L29/66863—Lateral single gate transistors
-
- 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
- H01L29/762—Charge transfer devices
- H01L29/765—Charge-coupled devices
- H01L29/768—Charge-coupled devices with field effect produced by an insulated gate
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Junction Field-Effect Transistors (AREA)
- Thin Film Transistor (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
米国特許6127695号には、横方向に等間隔に配置されるとともに、高濃度不純物添加n型ソース領域層とドレイン層が含まれる高周波数の切り替え用ラテラルSiC電界効果トランジスタが公開されている。より低い不純物濃度のn型チャネル層は横方向に広がり、ソース領域層とドレイン領域層を接続し、トランジスタのオン状態においてこれらの層の間に電流を導通する。高い不純物濃度のp型ベース層はチャネル層の隣に配置され、少なくとも部分的にゲートと重なるとともにドレイン領域層への横方向のある距離にあるチャネル層に隣接して設けられ、前記ベース層はソース領域層に短絡される。
さらに、このようにして生成されたp−n結合はショットキー障壁より高い電圧を遮断することができ、出力可能な電力が上昇する。ドレインからゲートまでの静電容量を低く保つため、高濃度不純物添加電極層の横方向への広がりはドレイン領域の下方に広がらないよう制限される。
Claims (7)
- ソース領域(9)、ドレイン領域およびソースとドレイン領域を互いに接続するチャネル層(11)を含む電界効果トランジスタを製造する方法であって、半導体材料(1)へ溝(2)を形成する第1の工程、犠牲酸化物層(7)をマスクとして、前記半導体材料(1)の前記溝(2)内にソース領域、ドレイン領域をイオン注入形成し、前記犠牲酸化物層(7)の厚みtにより前記ソース領域及び前記ドレイン領域の縁部を画定する第2の工程、前記犠牲酸化物層(7)を除去後、前記半導体材料(1)上にチャネル層(11)を形成する第3の工程、前記チャネル層(11)上に絶縁膜を形成する第4の工程、及び前記溝(2)の底部の絶縁膜に開口部を設け、該開口部において前記チャネル層(11)上にゲート電極を形成する第5の工程を含むことを特徴とする方法。
- 請求項1に記載の方法であり、半導体或いはチャネル層(11)上の絶縁層のような非犠牲層が正確に制御された成長をすることによりゲートの幅が決定されることを特徴とする方法。
- 請求項1または請求項2のいずれかに記載の方法であり、半導体材料(1)にシリコン、シリコンカーバイド、ガリウムヒ化合物、あるいはその他のグループIII−V半導体が含まれることを特徴とする方法。
- 請求項1から請求項3までのいずれかに記載の方法であり、前記第1の工程と前記第2の工程の間に、前記半導体材料(1)の溝底部に、第1犠牲酸化物層(4)をマスクとして、高濃度不純物添加p型ベース層(5)をイオン注入形成する工程、を更に有することを特徴とする方法。
- 請求項4に記載の方法であり、アルミニウム、ベリリウム或いはボロンが、半導体材料としてシリコンカーバイドが利用される場合に、高濃度不純物添加p型ベース層(5)向けの添加不純物として利用されることを特徴とする方法。
- 請求項5に記載の方法であり、シリコンカーバイドが半導体材料(1)として利用される場合に、高濃度不純物添加p型ベース層(5)が1×1018cm−3を超える高濃度で添加されることを特徴とする方法。
- 請求項4から請求項6までのいずれかに記載の方法であり、高濃度不純物添加p型ベース層(5)がゲート(16)と完全に重複するように形成されることを特徴とする方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SE2003/001382 WO2005024923A1 (en) | 2003-09-05 | 2003-09-05 | Method and device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007521634A JP2007521634A (ja) | 2007-08-02 |
JP4563938B2 true JP4563938B2 (ja) | 2010-10-20 |
Family
ID=34271303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005508810A Expired - Lifetime JP4563938B2 (ja) | 2003-09-05 | 2003-09-05 | 電界効果トランジスタを製造する方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7646060B2 (ja) |
EP (1) | EP1665348B1 (ja) |
JP (1) | JP4563938B2 (ja) |
KR (1) | KR101035044B1 (ja) |
AT (1) | ATE536633T1 (ja) |
AU (1) | AU2003258933A1 (ja) |
WO (1) | WO2005024923A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5655570B2 (ja) * | 2011-01-06 | 2015-01-21 | 住友電気工業株式会社 | 半導体装置の製造方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5588378A (en) * | 1978-12-27 | 1980-07-04 | Hitachi Ltd | Semiconductor device |
US4599790A (en) * | 1985-01-30 | 1986-07-15 | Texas Instruments Incorporated | Process for forming a T-shaped gate structure |
JPS62106669A (ja) * | 1985-11-05 | 1987-05-18 | Fujitsu Ltd | GaAs MESFETの構造とその製造方法 |
DE3576610D1 (de) * | 1985-12-06 | 1990-04-19 | Ibm | Verfahren zum herstellen eines voellig selbstjustierten feldeffekttransistors. |
FR2613134B1 (fr) * | 1987-03-24 | 1990-03-09 | Labo Electronique Physique | Dispositif semiconducteur du type transistor a effet de champ |
JPH02135743A (ja) * | 1988-11-16 | 1990-05-24 | Toshiba Corp | 電界効果トランジスタの製造方法 |
JP2746482B2 (ja) * | 1991-02-14 | 1998-05-06 | 三菱電機株式会社 | 電界効果型トランジスタ及びその製造方法 |
SE9900358D0 (sv) * | 1999-02-03 | 1999-02-03 | Ind Mikroelektronikcentrum Ab | A lateral field effect transistor of SiC, a method for production thereof and a use of such a transistor |
JP2001196580A (ja) * | 2000-01-12 | 2001-07-19 | Kmt Semiconductor Ltd | 電界効果トランジスタの製造方法 |
EP1205980A1 (en) * | 2000-11-07 | 2002-05-15 | Infineon Technologies AG | A method for forming a field effect transistor in a semiconductor substrate |
DE10101825B4 (de) * | 2001-01-17 | 2006-12-14 | United Monolithic Semiconductors Gmbh | Verfahren zur Herstellung eines Halbleiter-Bauelements mit einer T-förmigen Kontaktelektrode |
US6358827B1 (en) * | 2001-01-19 | 2002-03-19 | Taiwan Semiconductor Manufacturing Company | Method of forming a squared-off, vertically oriented polysilicon spacer gate |
JP2003037264A (ja) * | 2001-07-24 | 2003-02-07 | Toshiba Corp | 半導体装置およびその製造方法 |
US6620697B1 (en) * | 2001-09-24 | 2003-09-16 | Koninklijke Philips Electronics N.V. | Silicon carbide lateral metal-oxide semiconductor field-effect transistor having a self-aligned drift region and method for forming the same |
US7531217B2 (en) * | 2004-12-15 | 2009-05-12 | Iowa State University Research Foundation, Inc. | Methods for making high-temperature coatings having Pt metal modified γ-Ni +γ′-Ni3Al alloy compositions and a reactive element |
-
2003
- 2003-09-05 JP JP2005508810A patent/JP4563938B2/ja not_active Expired - Lifetime
- 2003-09-05 AT AT03818592T patent/ATE536633T1/de active
- 2003-09-05 EP EP03818592A patent/EP1665348B1/en not_active Expired - Lifetime
- 2003-09-05 AU AU2003258933A patent/AU2003258933A1/en not_active Abandoned
- 2003-09-05 KR KR1020067004568A patent/KR101035044B1/ko active IP Right Grant
- 2003-09-05 US US10/570,852 patent/US7646060B2/en not_active Expired - Lifetime
- 2003-09-05 WO PCT/SE2003/001382 patent/WO2005024923A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
KR20060057006A (ko) | 2006-05-25 |
WO2005024923A1 (en) | 2005-03-17 |
AU2003258933A1 (en) | 2005-03-29 |
US20060252212A1 (en) | 2006-11-09 |
EP1665348A1 (en) | 2006-06-07 |
KR101035044B1 (ko) | 2011-05-19 |
JP2007521634A (ja) | 2007-08-02 |
US7646060B2 (en) | 2010-01-12 |
EP1665348B1 (en) | 2011-12-07 |
ATE536633T1 (de) | 2011-12-15 |
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