KR100797130B1 - 실리콘 카바이드에 비아를 형성하는 방법과 결과 장치 및회로 - Google Patents
실리콘 카바이드에 비아를 형성하는 방법과 결과 장치 및회로 Download PDFInfo
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- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 115
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims description 48
- 239000000758 substrate Substances 0.000 claims abstract description 84
- 239000004065 semiconductor Substances 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000005530 etching Methods 0.000 claims description 67
- 239000000463 material Substances 0.000 claims description 40
- 238000009616 inductively coupled plasma Methods 0.000 claims description 19
- 229920002120 photoresistant polymer Polymers 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- 239000000395 magnesium oxide Substances 0.000 claims description 8
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 8
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- 238000009623 Bosch process Methods 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 229910003671 SiC 0.5 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
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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
- H01L21/04—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
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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
- H01L21/70—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
- H01L21/76898—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics formed through a semiconductor substrate
-
- 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
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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
- H01L29/02—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Condensed Matter Physics & Semiconductors (AREA)
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- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Ceramic Products (AREA)
- Carbon And Carbon Compounds (AREA)
- Chemical Vapour Deposition (AREA)
- Drying Of Semiconductors (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (38)
- 실리콘 카바이드(silicon carbide)로 형성되는 반도체 장치로서,실질적으로 투명하며, 제1 면(26)과 제2 면(27)을 갖는 실리콘 카바이드 기판(20),상기 실리콘 카바이드 기판을 완전히 통과하여 뻗어있는 비아(via)(37),상기 실리콘 카바이드 기판의 제1 면상의 상기 비아 위에 형성되어 있고, 전기적 접촉부를 포함하는 도전성 접촉부(conductive contact)(25),상기 기판상에 형성되는 장치(22, 24),상기 반도체 장치의 적어도 일부와, 상기 장치에 대한 상기 도전성 접촉부가 위치하는, 상기 기판의 제1 면상의 실리콘 카바이드 에피층(epilayer),상기 장치를 포함하여 상기 에피층 전체를 덮는 폴리머 도포재(polymer coating)(31), 그리고폴리싱된(polished) 투명한 상기 기판의 상기 제2 면에 위치하면서 ITO(indium-tin-oxide)와 MgO(magnesium oxide)로 구성되는 군에서 선택되는 투명층(34)을 포함하는, 반도체 장치.
- 실리콘 카바이드로 형성되는 반도체 장치로서,실질적으로 투명하며, 제1 면(26)과 제2 면(27)을 갖는 실리콘 카바이드 기판(20),상기 실리콘 카바이드 기판을 완전히 통과하여 뻗어있는 도전성 비아(via)(40, 41),상기 실리콘 카바이드 기판의 제1 면상의 상기 비아에 형성되어 있고 전기적 접촉부를 포함하는 도전성 접촉부(conductive contact)(25),전기적 연결을 위해 상기 도전성 접촉부와 연결되며, 상기 기판상에 형성되는 장치(22, 24),상기 반도체 장치의 적어도 일부와, 상기 장치에 대한 상기 도전성 접촉부가 위치하는, 상기 기판의 제1 면상의 실리콘 카바이드 에피층(epilayer), 그리고상기 장치를 포함하여 상기 에피층 전체를 덮는 폴리머 도포재(31),을 포함하는, 반도체 장치.
- 제 1항에서,상기 투명층은 ITO(indium-tin-oxide)층이며, 상기 반도체 장치는 상기 ITO층 위에 감광막층을 더 포함하는, 반도체 장치.
- 제 1항 또는 제 2항에 있어서,상기 비아는 상기 감광막에서 전구체를 관통하여 상기 장치용 상기 도전성 접촉부까지 통과하여 뻗어있는, 반도체 장치.
- 제 1항 또는 제 2항에서,상기 실리콘 카바이드 기판의 적어도 일부는 반 절연성(semi-insulating)인 반도체 장치.
- 제 1항 또는 제 2항에서,상기 도전성 접촉부는 ITO를 포함하는, 반도체 장치.
- 제 1항 또는 제 2항에서,상기 실리콘 카바이드 기판을 완전히 통과하여 뻗어있는 복수의 비아를 포함하고, 각 비아는 상기 기판의 제1 면상에서 상기 기판 내의 장치까지 전기 접촉부를 형성하는 도전성 접촉부로 덮여 있는, 반도체 장치.
- 제 1항 또는 제 2항에서,상기 실리콘 카바이드 기판은 반 절연성이고,상기 제1 면에 형성되는 복수의 도전성 접촉부를 포함하며 상기 제1 면상 또는 내에 형성되는 마이크로파 회로, 및상기 실리콘 카바이드 기판의 상기 제1 면과 제2 면 사이에 완전한 전기 경로를 형성하도록 상기 도전성 접촉부 중 하나에서 각각이 종결되며 상기 기판을 완전히 통과하여 뻗어있는 복수의 비아를 포함하는,반도체 장치.
- 제 8항에서상기 마이크로파 회로는 단일칩 마이크로파 집적 회로(monolithic microwave integrated circuit)인, 반도체 장치.
- 제9항에서,상기 적어도 하나의 에피층에 형성되는 상기 마이크로파 회로의 적어도 일부,상기 에피층에 형성되는 도전성 접촉부, 그리고상기 기판과 상기 에피층을 통과하여 상기 접촉부까지 뻗어있는 비아를 더 포함하는, 반도체 장치.
- 제1 면과 대향면에 제2 면을 갖는 실리콘 카바이드 기판(20)에 장치를 제조하는 방법으로서,상기 실리콘 카바이드 기판의 제1 면상의 소정 위치에 도전성 식각 방지 물질(25)을 위치시키는 단계,상기 기판의 제2 면을 연마하는 단계,상기 기판(20)이 실질적으로 투명해지도록 상기 연마면을 폴리싱하는 단계,ITO와 MgO로 구성되는 군에서 선택되는 물질로 이루어진 투명층(34)을 상기 폴리싱된 면상에 위치시키는 단계,상기 투명 ITO층에 감광막(35)을 위치시키는 단계,상기 감광막을 현상하여 상기 기판의 대향면상에 상기 도전성 식각 방지 물질과 광학적으로 배향되는 지점에서 절개되도록 하는 마스크를 상기 감광막상에 광학적으로 배치하는 단계,상기 기판을 완전히 통과하여 상기 도전성 식각 방지 물질에 이르기까지 상기 마스킹된 제2 면부터 상기 기판에 비아(37)를 식각하는 단계, 그리고상기 제1 면상의 식각 방지 물질을 상기 제1 면상의 장치(22, 24)에 혼합시키는 단계를 포함하는 제조 방법.
- 제11항에서,상기 도전성 식각 방지 물질은 상기 기판의 마스킹 단계와 식각 단계 이전에 상기 장치에 혼합되는 제조 방법.
- 제11항에서,상기 장치까지 도전성 연결부(conductive connection)를 형성하도록 상기 비아를 금속화하는 단계를 포함하는 제조 방법.
- 제11항에서,인덕턴스를 유발할 수 있는 배선 결합을 갖지 않는 실리콘 카바이드 기판상에 집적 회로를 제조하는 방법으로서,상기 식각 방지 물질이 형성된 적어도 하나의 장치용 금속 접촉부를 갖는 상기 실리콘 카바이드 기판의 제1 면상에 반도체 장치를 제조하는 단계, 그리고상기 기판의 제2 면에서부터 상기 기판의 제1 면상의 상기 금속 접촉부와 상기 장치에 이르기까지 전기 접촉부를 형성하도록 상기 비아를 금속화하는 단계를 포함하는 제조 방법.
- 제14항에서,상기 제1 면상에 상기 금속 접촉부를 제조하는 단계는 상기 제1 면상에 ITO를 증착하는 단계를 포함하는 제조 방법.
- 제15항에서,상기 ITO 접촉부를 금 도포재(gold coating)로 도포하는 단계를 더 포함하는 제조 방법.
- 제11항에서,상기 비아를 식각하는 단계는 유도 커플 플라즈마(inductively coupled plasma) 시스템에서 평방 센티미터당 약 1 내지 2 와트의 척 파워(chuck power)로 상기 실리콘 카바이드 기판을 식각하는 단계를 포함하는, 제조 방법.
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Also Published As
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US6475889B1 (en) | 2002-11-05 |
WO2001078120A1 (en) | 2001-10-18 |
TW571383B (en) | 2004-01-11 |
US20040241970A1 (en) | 2004-12-02 |
CA2406054A1 (en) | 2001-10-18 |
US6649497B2 (en) | 2003-11-18 |
US20020055265A1 (en) | 2002-05-09 |
US6946739B2 (en) | 2005-09-20 |
KR20020093901A (ko) | 2002-12-16 |
US20020066960A1 (en) | 2002-06-06 |
EP2182548A3 (en) | 2010-08-11 |
EP1273032A1 (en) | 2003-01-08 |
JP2003530716A (ja) | 2003-10-14 |
CN1429400A (zh) | 2003-07-09 |
AU2001249659A1 (en) | 2001-10-23 |
JP5142438B2 (ja) | 2013-02-13 |
EP2182548B1 (en) | 2012-11-07 |
CA2406054C (en) | 2010-12-21 |
CN1197126C (zh) | 2005-04-13 |
EP1273032B1 (en) | 2010-05-05 |
DE60142035D1 (de) | 2010-06-17 |
ATE467231T1 (de) | 2010-05-15 |
EP2182548A2 (en) | 2010-05-05 |
US6515303B2 (en) | 2003-02-04 |
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