KR100789200B1 - 반도체 칩 제조 방법 및 반도체 칩 - Google Patents
반도체 칩 제조 방법 및 반도체 칩 Download PDFInfo
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- KR100789200B1 KR100789200B1 KR1020067011546A KR20067011546A KR100789200B1 KR 100789200 B1 KR100789200 B1 KR 100789200B1 KR 1020067011546 A KR1020067011546 A KR 1020067011546A KR 20067011546 A KR20067011546 A KR 20067011546A KR 100789200 B1 KR100789200 B1 KR 100789200B1
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- gallium nitride
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 54
- 229910002601 GaN Inorganic materials 0.000 claims abstract description 31
- -1 gallium nitride compound Chemical class 0.000 claims abstract description 21
- 238000005530 etching Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 30
- 229910052594 sapphire Inorganic materials 0.000 claims description 21
- 239000010980 sapphire Substances 0.000 claims description 21
- 150000004767 nitrides Chemical class 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000013078 crystal Substances 0.000 abstract description 3
- 235000012431 wafers Nutrition 0.000 description 35
- 238000003776 cleavage reaction Methods 0.000 description 5
- 230000007017 scission Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/005—Processes
- H01L33/0095—Post-treatment of devices, e.g. annealing, recrystallisation or short-circuit elimination
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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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/0201—Separation of the wafer into individual elements, e.g. by dicing, cleaving, etching or directly during growth
-
- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/0248—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies
- H01L31/0256—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies characterised by the material
- H01L31/0264—Inorganic materials
- H01L31/0304—Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/005—Processes
- H01L33/0062—Processes for devices with an active region comprising only III-V compounds
- H01L33/0066—Processes for devices with an active region comprising only III-V compounds with a substrate not being a III-V compound
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/005—Processes
- H01L33/0062—Processes for devices with an active region comprising only III-V compounds
- H01L33/0075—Processes for devices with an active region comprising only III-V compounds comprising nitride compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/0206—Substrates, e.g. growth, shape, material, removal or bonding
- H01S5/0213—Sapphire, quartz or diamond based substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
- H01S5/323—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/32308—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm
- H01S5/32341—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm blue laser based on GaN or GaP
Abstract
Description
Claims (11)
- 기판의 주면상에 질화 갈륨계 화합물 반도체층이 적층된 웨이퍼로부터 질화 갈륨계 화합물 반도체 칩을 제조하는 방법에 있어서:상기 웨이퍼의 질화 갈륨계 화합물 반도체층(2,3)측에 제 1 그루브(11)를 소망의 칩형상으로 에칭에 의해 선형으로 형성하는 공정;기판을 평면에서 본 경우에, 상기 제 1 그루브의 중앙선에 대하여 상기 제 1 그루브의 선폭(W1)의 20 내지 100%만큼 떨어진 위치의 기판(1)측에 제 1 그루브의 중앙선과 일치하지 않는 위치에서 제 1 그루브의 선폭(W1)과 거의 동등하거나 또는 보다 작은 선폭(W2)을 갖는 제 2 그루브(22)를 형성하는 공정; 및상기 제 1 및 제 2 그루브를 따라 상기 웨이퍼를 각각 칩형상의 조각으로 분리하는 공정을 포함하는 것을 특징으로 하는 반도체 칩 제조 방법.
- 제 1 항에 있어서,상기 기판은 사파이어로 형성되고, 사파이어 기판의 C면을 상기 주면으로 한 때에, 상기 제 1 및 제 2 그루브는 오리엔테이션 플랫(11-20)과 평행한 제 1 방향 및 상기 제 1 방향과 직교하는 제 2 방향을 따라 각각 형성되고, 상기 웨이퍼는 상기 제 1 및 제 2 그루브를 따라 분리되는 것을 특징으로 하는 반도체 칩 제조 방법.
- 삭제
- 제 1 항 또는 제 2 항에 있어서,상기 제 2 그루브를 형성하는 공정에서 상기 제 2 그루브는 비스듬히 분리되는 칩이 60 내지 85° 범위의 각을 갖는 절단면을 나타내도록 형성되는 것을 특징으로 하는 반도체 칩 제조 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 제 2 그루브를 형성하기 전에 기판측을 연마하여 기판의 두께를 60 내지 100㎛의 범위에서 조정하는 공정을 더 포함하는 것을 특징으로 하는 반도체 칩 제조 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 제 1 그루브는 질화 갈륨계 화합물 반도체 칩의 전극을 형성하는 전극 형성면에 면하는 것을 특징으로 하는 반도체 칩 제조 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 제 2 그루브는 에칭, 다이싱, 펄스 레이저, 및 스크라이버로 구성되는 그룹으로부터 선택된 하나 이상의 방법에 의해 형성되는 것을 특징으로 하는 반도체 칩 제조 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 기판은 육방 결정의 SiC으로 형성되는 것을 특징으로 하는 반도체 칩 제조 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 기판은 육방 결정의 질화물 반도체로 형성되는 것을 특징으로 하는 반도체 칩 제조 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 기판은 육방 결정의 GaN으로 형성되는 것을 특징으로 하는 반도체 칩 제조 방법.
- 제 1 항 또는 제 2 항에 기재된 반도체 칩 제조 방법에 의해 얻어진 반도체 칩.
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JP2003407550 | 2003-12-05 | ||
JPJP-P-2003-00407550 | 2003-12-05 |
Publications (2)
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KR20060101528A KR20060101528A (ko) | 2006-09-25 |
KR100789200B1 true KR100789200B1 (ko) | 2008-01-02 |
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KR1020067011546A KR100789200B1 (ko) | 2003-12-05 | 2004-12-02 | 반도체 칩 제조 방법 및 반도체 칩 |
Country Status (6)
Country | Link |
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US (1) | US20070205490A1 (ko) |
EP (1) | EP1695378A4 (ko) |
KR (1) | KR100789200B1 (ko) |
CN (1) | CN100454494C (ko) |
TW (1) | TWI286392B (ko) |
WO (1) | WO2005055300A1 (ko) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4818732B2 (ja) * | 2005-03-18 | 2011-11-16 | シャープ株式会社 | 窒化物半導体素子の製造方法 |
JP5250856B2 (ja) * | 2006-06-13 | 2013-07-31 | 豊田合成株式会社 | 窒化ガリウム系化合物半導体発光素子の製造方法 |
JP5179068B2 (ja) * | 2007-02-14 | 2013-04-10 | 昭和電工株式会社 | 化合物半導体素子の製造方法 |
WO2009020033A1 (ja) * | 2007-08-03 | 2009-02-12 | Nichia Corporation | 半導体発光素子及びその製造方法 |
CN102714152B (zh) | 2010-01-19 | 2015-04-01 | 夏普株式会社 | 功能元件及其制造方法 |
CN103069586B (zh) * | 2010-08-06 | 2016-03-30 | 日亚化学工业株式会社 | 发光元件的制造方法 |
CN103515491A (zh) * | 2012-06-28 | 2014-01-15 | 上海蓝光科技有限公司 | 一种发光二极管的制造方法 |
KR101854676B1 (ko) * | 2012-10-29 | 2018-06-20 | 미쓰보시 다이야몬도 고교 가부시키가이샤 | 레이저 가공 장치 및, 패턴이 있는 기판의 가공 조건 설정 방법 |
DE102012111358A1 (de) * | 2012-11-23 | 2014-05-28 | Osram Opto Semiconductors Gmbh | Verfahren zum Vereinzeln eines Verbundes in Halbleiterchips und Halbleiterchip |
KR20140085918A (ko) * | 2012-12-28 | 2014-07-08 | 서울바이오시스 주식회사 | 발광 소자 및 그것을 제조하는 방법 |
JP2015088512A (ja) * | 2013-10-28 | 2015-05-07 | 三菱電機株式会社 | 半導体装置の製造方法 |
CN106415794B (zh) * | 2014-05-19 | 2019-03-01 | 夏普株式会社 | 半导体晶片、由半导体晶片单片化而得的半导体器件和半导体器件的制造方法 |
JP6520964B2 (ja) * | 2017-01-26 | 2019-05-29 | 日亜化学工業株式会社 | 発光素子の製造方法 |
US10943895B2 (en) * | 2019-01-14 | 2021-03-09 | Xerox Corporation | Method of fabricating a plurality of linear arrays with submicron y-axis alignment |
CN112993756B (zh) * | 2019-11-29 | 2022-02-08 | 山东华光光电子股份有限公司 | 一种半导体激光器芯片的制备方法 |
JP7477835B2 (ja) * | 2020-04-15 | 2024-05-02 | 株式会社デンソー | 半導体チップの製造方法 |
CN113594318B (zh) * | 2021-05-31 | 2022-08-12 | 华灿光电(浙江)有限公司 | 高亮度发光二极管芯片及其制造方法 |
CN114665375B (zh) * | 2022-05-24 | 2022-09-23 | 度亘激光技术(苏州)有限公司 | 半导体芯片制造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10125958A (ja) | 1997-10-20 | 1998-05-15 | Nichia Chem Ind Ltd | 窒化ガリウム系化合物半導体チップの製造方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604161A (en) * | 1985-05-02 | 1986-08-05 | Xerox Corporation | Method of fabricating image sensor arrays |
US4814296A (en) * | 1987-08-28 | 1989-03-21 | Xerox Corporation | Method of fabricating image sensor dies for use in assembling arrays |
US5219796A (en) * | 1991-11-04 | 1993-06-15 | Xerox Corporation | Method of fabricating image sensor dies and the like for use in assembling arrays |
JP2859478B2 (ja) * | 1991-12-12 | 1999-02-17 | 日亜化学工業 株式会社 | 発光デバイス用の窒化ガリウム系化合物半導体ウエハーの切断方法 |
EP1081818B1 (en) * | 1995-09-18 | 2004-08-18 | Hitachi, Ltd. | Semiconductor laser devices |
EP0874405A3 (en) * | 1997-03-25 | 2004-09-15 | Mitsubishi Cable Industries, Ltd. | GaN group crystal base member having low dislocation density, use thereof and manufacturing methods thereof |
JPH10275936A (ja) * | 1997-03-28 | 1998-10-13 | Rohm Co Ltd | 半導体発光素子の製法 |
US6335546B1 (en) * | 1998-07-31 | 2002-01-01 | Sharp Kabushiki Kaisha | Nitride semiconductor structure, method for producing a nitride semiconductor structure, and light emitting device |
JP2000091636A (ja) * | 1998-09-07 | 2000-03-31 | Rohm Co Ltd | 半導体発光素子の製法 |
WO2000016455A1 (fr) * | 1998-09-10 | 2000-03-23 | Rohm Co., Ltd. | Element lumineux semi-conducteur et laser a semi-conducteur |
JP2000195827A (ja) * | 1998-12-25 | 2000-07-14 | Oki Electric Ind Co Ltd | Ledアレイチップおよびその製造方法ならびにダイシング装置 |
US6680959B2 (en) * | 2000-07-18 | 2004-01-20 | Rohm Co., Ltd. | Semiconductor light emitting device and semiconductor laser |
JP2002190635A (ja) * | 2000-12-20 | 2002-07-05 | Sharp Corp | 半導体レーザ素子およびその製造方法 |
US6963086B2 (en) * | 2001-10-10 | 2005-11-08 | Sony Corporation | Semiconductor light-emitting device image display illuminator and its manufacturing method |
SG130935A1 (en) * | 2002-06-26 | 2007-04-26 | Agency Science Tech & Res | Method of cleaving gan/sapphire for forming laser mirror facets |
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2004
- 2004-12-02 KR KR1020067011546A patent/KR100789200B1/ko active IP Right Grant
- 2004-12-02 WO PCT/JP2004/018325 patent/WO2005055300A1/en active Application Filing
- 2004-12-02 US US10/581,335 patent/US20070205490A1/en not_active Abandoned
- 2004-12-02 EP EP04819974A patent/EP1695378A4/en not_active Withdrawn
- 2004-12-02 CN CNB2004800360726A patent/CN100454494C/zh active Active
- 2004-12-03 TW TW093137289A patent/TWI286392B/zh active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10125958A (ja) | 1997-10-20 | 1998-05-15 | Nichia Chem Ind Ltd | 窒化ガリウム系化合物半導体チップの製造方法 |
Also Published As
Publication number | Publication date |
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CN1890782A (zh) | 2007-01-03 |
KR20060101528A (ko) | 2006-09-25 |
EP1695378A4 (en) | 2010-08-25 |
US20070205490A1 (en) | 2007-09-06 |
WO2005055300A1 (en) | 2005-06-16 |
TW200524185A (en) | 2005-07-16 |
CN100454494C (zh) | 2009-01-21 |
EP1695378A1 (en) | 2006-08-30 |
TWI286392B (en) | 2007-09-01 |
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