KR100598348B1 - 실리콘 기반 씨모스 공정을 이용한 쇼트키 다이오드제조방법 - Google Patents
실리콘 기반 씨모스 공정을 이용한 쇼트키 다이오드제조방법 Download PDFInfo
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- KR100598348B1 KR100598348B1 KR1020040111943A KR20040111943A KR100598348B1 KR 100598348 B1 KR100598348 B1 KR 100598348B1 KR 1020040111943 A KR1020040111943 A KR 1020040111943A KR 20040111943 A KR20040111943 A KR 20040111943A KR 100598348 B1 KR100598348 B1 KR 100598348B1
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 15
- 239000010703 silicon Substances 0.000 title claims abstract description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 41
- 238000005468 ion implantation Methods 0.000 claims abstract description 31
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 17
- 239000010937 tungsten Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims description 21
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 11
- 238000005530 etching Methods 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011229 interlayer Substances 0.000 claims description 7
- 239000002019 doping agent Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 238000000151 deposition Methods 0.000 claims description 5
- 238000002513 implantation Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 229910021332 silicide Inorganic materials 0.000 claims description 4
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 230000006866 deterioration Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 150000004767 nitrides Chemical class 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000000206 photolithography 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
- H01L29/66083—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by variation of the electric current supplied or the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. two-terminal devices
- H01L29/6609—Diodes
- H01L29/66143—Schottky diodes
-
- 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
- H01L29/47—Schottky barrier 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
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/861—Diodes
- H01L29/872—Schottky diodes
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- Power Engineering (AREA)
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- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (7)
- 삭제
- 삭제
- 실리콘 기판에 고전압 웰을 형성하는 단계;상기 실리콘 기판 표면에 소자분리 마스크 패턴을 형성하는 단계;상기 애노드 형성 영역의 활성 영역 가장자리에 에지 터미네이션 이온주입을 실시하는 단계;열산화 공정을 실시하여 소자분리막을 형성하는 단계;상기 소자분리 마스크 패턴을 제거하는 단계;애노드 형성 영역의 상기 고전압 웰 표면 부분에 저항성 표면 이온주입 영역 - 상기 고전압 웰과 반대 극성의 저농도 도펀트가 주입됨 -을 형성하는 단계;상기 저항성 표면 이온주입 영역 내에 다수의 콘택 에지 가드-링 - 상기 저항성 표면 이온주입 영역과 동일 극성의 고농도 도펀트가 주입되며, 하기 텅스텐 플러그가 형성되는 쇼트키 콘택 영역을 둘러싸도록 배치됨 - 을 형성하는 단계;캐소드 형성 영역에 오믹 콘택용 접합을 형성하는 단계;상기 오믹 콘택용 접합이 형성된 전체 구조 상부에 층간절연막을 형성하는 단계;상기 층간절연막에 대한 콘택 식각을 실시하여 상기 오믹 콘택용 접합 및 상기 저항성 표면 이온주입 영역을 오픈시키는 콘택홀을 형성하는 단계;상기 콘택홀이 형성된 전체 구조 표면을 따라 쇼트키 장벽 금속막을 형성하는 단계;상기 쇼트키 장벽 금속막이 형성된 상기 콘택홀 내에 금속 플러그를 형성하는 단계; 및상기 금속 플러그에 콘택되는 애노드 전극 및 캐소드 전극을 형성하는 단계를 포함하는 쇼트키 다이오드 제조방법.
- 제3항에 있어서,상기 쇼트키 장벽 금속막을 형성하는 단계는,상기 콘택홀이 형성된 전체 구조 표면을 따라 Ti/TiN막을 증착하는 단계와,급속열처리를 실시하여 애노드 및 캐소드 콘택 영역의 표면에 Ti실리사이드막을 형성하는 단계를 포함하는 것을 특징으로 하는 쇼트키 다이오드 제조방법.
- 제4항에 있어서,상기 금속 플러그를 형성하는 단계는,상기 쇼트키 장벽 금속막이 형성된 전체 구조 상부에 텅스텐막을 형성하는 단계와,상기 쇼트키 장벽 금속막이 노출되도록 텅스텐막을 에치백하는 단계를 포함하는 것을 특징으로 하는 쇼트키 다이오드 제조방법.
- 제5항에 있어서,상기 애노드 전극 및 캐소드 전극을 형성하는 단계는,상기 금속 플러그가 형성된 전체 구조 상부에 알루미늄막을 형성하는 단계;전극 마스크를 사용한 사진 공정 및 상기 알루미늄막, 상기 쇼트키 장벽 금 속막에 대한 식각 공정을 실시하여 상기 애노드 전극 및 상기 캐소드 전극을 디파인하는 단계; 및상기 알루미늄막에 열처리를 실시하는 단계를 포함하는 것을 특징으로 하는 쇼트키 다이오드 제조방법.
- 제6항에 있어서,상기 애노드 전극 및 캐소드 전극을 형성하는 단계는,상기 알루미늄막을 형성하는 단계 수행 전,상기 금속 플러그가 형성된 전체 구조 상부에 상부 장벽 금속막을 형성하는 단계를 더 포함하는 것을 특징으로 하는 쇼트키 다이오드 제조방법.
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KR100763848B1 (ko) | 2006-07-05 | 2007-10-05 | 삼성전자주식회사 | 쇼트키 다이오드 및 그 제조 방법 |
KR100780967B1 (ko) * | 2006-12-07 | 2007-12-03 | 삼성전자주식회사 | 고전압용 쇼트키 다이오드 구조체 |
EP3038162B1 (en) * | 2014-12-24 | 2019-09-04 | ABB Schweiz AG | Junction barrier Schottky rectifier |
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KR940001055A (ko) * | 1992-06-17 | 1994-01-10 | 이헌조 | 자기기록재생기의 헤드드럼 청소장치 |
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KR940001055A (ko) * | 1992-06-17 | 1994-01-10 | 이헌조 | 자기기록재생기의 헤드드럼 청소장치 |
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