JP7371257B2 - 電気接点を形成するための方法および半導体デバイスを形成するための方法 - Google Patents
電気接点を形成するための方法および半導体デバイスを形成するための方法 Download PDFInfo
- Publication number
- JP7371257B2 JP7371257B2 JP2022533115A JP2022533115A JP7371257B2 JP 7371257 B2 JP7371257 B2 JP 7371257B2 JP 2022533115 A JP2022533115 A JP 2022533115A JP 2022533115 A JP2022533115 A JP 2022533115A JP 7371257 B2 JP7371257 B2 JP 7371257B2
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- silicon carbide
- forming
- grinding
- methods
- 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
- 238000000034 method Methods 0.000 title claims description 52
- 239000004065 semiconductor Substances 0.000 title claims description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 62
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 41
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 37
- 229910052759 nickel Inorganic materials 0.000 claims description 31
- 239000000758 substrate Substances 0.000 claims description 30
- 238000000137 annealing Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 150000002816 nickel compounds Chemical class 0.000 claims description 9
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910021334 nickel silicide Inorganic materials 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 239000002344 surface layer Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 11
- 239000013078 crystal Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 238000005224 laser annealing Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 229940125797 compound 12 Drugs 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- -1 nickel alloys Chemical class 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000003746 surface roughness Effects 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
- H01L21/0445—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 crystalline silicon carbide
- H01L21/048—Making electrodes
- H01L21/0485—Ohmic electrodes
-
- 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
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/268—Bombardment with radiation with high-energy radiation using electromagnetic radiation, e.g. laser radiation
-
- 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
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/45—Ohmic electrodes
-
- 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
- H01L29/16—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table
- H01L29/1608—Silicon carbide
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- High Energy & Nuclear Physics (AREA)
- Ceramic Engineering (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electromagnetism (AREA)
- Electrodes Of Semiconductors (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Description
米国特許第8216929号明細書において、炭化ケイ素基板に(半導体デバイスの)電気接点を形成するための方法が開示されており、その方法では、まず、炭化ケイ素基板の表面が、その平均粗さ値が10nm未満になるように処理される。次いで、プラズマにより表面が損傷され、その後、次のプロセスにおいて、損傷された表面に薄い金属層が堆積される。最後に、薄い金属層にレーザ光が照射される。
様々な例示的実施形態において、半導体素子はトランジスタであり得る。
Claims (9)
- 電気接点(16)を形成するための方法であって、
- 研削盤からのニッケルまたはニッケル化合物の粒子(12)が、研削された炭化ケイ素表面に挿入されるように(210)前記ニッケルまたは前記ニッケル化合物を含む研削面を有する前記研削盤により炭化ケイ素表面(101)を研削するステップ、および、
- 前記挿入されたニッケル粒子(12)の少なくとも一部と前記炭化ケイ素のシリコンとがニッケルシリサイドを生成するように(220)前記研削された炭化ケイ素表面(101g)をレーザによりアニーリングするステップ
を有する、方法。 - 前記ニッケルシリサイドが、任意選択で10nm<Ra<500nmの平均粗さ値を有する表面層(101gt)を形成する、
請求項1に記載の方法。 - 前記炭化ケイ素表面を研削する前記ステップが、50μm~200μmの厚さの間の炭化ケイ素基板(10)の薄さにすることを含む、
請求項1または2に記載の方法。 - 前記研削された炭化ケイ素表面(101g)が、10nm<Ra<500nmの平均粗さ値Raを有する、
請求項1から3のいずれか1項に記載の方法。 - 前記研削盤が、0.1重量%~100重量%のニッケルを含む、
請求項1から4のいずれか1項に記載の方法。 - アニーリングする前記ステップが、400nm未満の波長を有するレーザ光(18)による照射を有する、
請求項1から5のいずれか1項に記載の方法。 - アニーリングする前記ステップが、2Jcm-2よりも大きいエネルギー密度を有するレーザ光(18)による照射を有する、
請求項1から6のいずれか1項に記載の方法。 - 半導体デバイス(400)を形成するための方法であって、
- 半導体素子(11)、任意選択でトランジスタを炭化ケイ素基板(310)に形成するステップであり、
- 前記半導体素子(11)の電極(16)を、請求項1から7のいずれか1項に記載の電気接点を形成するための方法(320)により形成することを有する、ステップ
を有する方法。 - ウェハ平面上で行われる、請求項1から8のいずれか1項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019218725.0 | 2019-12-03 | ||
DE102019218725.0A DE102019218725A1 (de) | 2019-12-03 | 2019-12-03 | Verfahren zum Bilden eines elektrischen Kontakts und Verfahren zum Bilden einer Halbleitervorrichtung |
PCT/EP2020/081084 WO2021110348A1 (de) | 2019-12-03 | 2020-11-05 | Verfahren zum bilden eines elektrischen kontakts und verfahren zum bilden einer halbleitervorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2023504651A JP2023504651A (ja) | 2023-02-06 |
JP7371257B2 true JP7371257B2 (ja) | 2023-10-30 |
Family
ID=73172680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022533115A Active JP7371257B2 (ja) | 2019-12-03 | 2020-11-05 | 電気接点を形成するための方法および半導体デバイスを形成するための方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230005747A1 (ja) |
EP (1) | EP4070363B1 (ja) |
JP (1) | JP7371257B2 (ja) |
CN (1) | CN114746983A (ja) |
DE (1) | DE102019218725A1 (ja) |
WO (1) | WO2021110348A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006041248A (ja) | 2004-07-28 | 2006-02-09 | Shindengen Electric Mfg Co Ltd | 半導体装置および半導体装置の製造方法 |
JP2008135611A (ja) | 2006-11-29 | 2008-06-12 | Denso Corp | 半導体装置の製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5921856A (en) * | 1997-07-10 | 1999-07-13 | Sp3, Inc. | CVD diamond coated substrate for polishing pad conditioning head and method for making same |
JP4924690B2 (ja) * | 2009-10-20 | 2012-04-25 | 株式会社デンソー | 炭化珪素半導体装置の製造方法 |
JP5482107B2 (ja) * | 2009-10-30 | 2014-04-23 | 株式会社デンソー | 炭化珪素半導体装置の製造方法 |
JP2012004185A (ja) * | 2010-06-14 | 2012-01-05 | Denso Corp | 炭化珪素半導体装置の製造方法 |
US8962468B1 (en) * | 2014-04-23 | 2015-02-24 | United Silicon Carbide, Inc. | Formation of ohmic contacts on wide band gap semiconductors |
EP3131112A1 (en) * | 2015-08-12 | 2017-02-15 | Laser Systems and Solutions of Europe | Method for forming an ohmic contact on a back-side surface of a silicon carbide substrate |
-
2019
- 2019-12-03 DE DE102019218725.0A patent/DE102019218725A1/de active Pending
-
2020
- 2020-11-05 EP EP20803488.4A patent/EP4070363B1/de active Active
- 2020-11-05 CN CN202080084003.1A patent/CN114746983A/zh active Pending
- 2020-11-05 US US17/774,063 patent/US20230005747A1/en active Pending
- 2020-11-05 WO PCT/EP2020/081084 patent/WO2021110348A1/de unknown
- 2020-11-05 JP JP2022533115A patent/JP7371257B2/ja active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006041248A (ja) | 2004-07-28 | 2006-02-09 | Shindengen Electric Mfg Co Ltd | 半導体装置および半導体装置の製造方法 |
JP2008135611A (ja) | 2006-11-29 | 2008-06-12 | Denso Corp | 半導体装置の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US20230005747A1 (en) | 2023-01-05 |
DE102019218725A1 (de) | 2021-06-10 |
CN114746983A (zh) | 2022-07-12 |
WO2021110348A1 (de) | 2021-06-10 |
EP4070363B1 (de) | 2024-05-15 |
EP4070363A1 (de) | 2022-10-12 |
JP2023504651A (ja) | 2023-02-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7605022B2 (en) | Methods of manufacturing a three-dimensional semiconductor device and semiconductor devices fabricated thereby | |
KR101145074B1 (ko) | 반도체 기판의 제조 방법 및 이를 이용한 반도체 장치의 제조 방법 | |
JP5599342B2 (ja) | 半導体装置の製造方法 | |
JP4841021B2 (ja) | メサ構造を持つ半導体チップの製造方法 | |
JP3900741B2 (ja) | Soiウェーハの製造方法 | |
JP5664592B2 (ja) | 貼り合わせウェーハの製造方法 | |
JP2008166774A (ja) | 半導体ダイピックアップ装置と半導体ダイピックアップ方法 | |
JP5610328B1 (ja) | 半導体デバイスの製造方法 | |
JP2005072236A5 (ja) | ||
JP2006196710A (ja) | 半導体素子の製造方法 | |
JP2003243356A5 (ja) | ||
JP4665429B2 (ja) | 半導体素子の製造方法 | |
JP7371257B2 (ja) | 電気接点を形成するための方法および半導体デバイスを形成するための方法 | |
JP2011009341A (ja) | 半導体装置の製造方法 | |
JP5493343B2 (ja) | 貼り合わせウェーハの製造方法 | |
JP2007242699A (ja) | 半導体素子の製造方法及び半導体基板 | |
JP2009253240A5 (ja) | ||
WO2007072624A1 (ja) | Soi基板の製造方法およびsoi基板 | |
JP2009283582A (ja) | 貼り合わせウェーハの製造方法及び貼り合わせウェーハ | |
CN113517183B (zh) | 一种基于薄片碳化硅晶圆的器件制备方法 | |
JP2010166371A (ja) | 圧電デバイスの製造方法 | |
JP2008251579A (ja) | 静電チャックおよび半導体装置の製造方法 | |
JP2020177963A (ja) | 半導体チップの製造方法 | |
CN104022042B (zh) | 低温多晶硅薄膜晶体管的制作方法和阵列基板的制作方法 | |
JP2008294397A (ja) | 半導体装置の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220602 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230531 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230601 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230831 |
|
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: 20230929 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20231018 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7371257 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |