JP5847083B2 - 発光素子の製造方法 - Google Patents
発光素子の製造方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 85
- 238000004519 manufacturing process Methods 0.000 title claims description 61
- 239000004065 semiconductor Substances 0.000 claims description 358
- 239000000758 substrate Substances 0.000 claims description 282
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 244
- 229910002601 GaN Inorganic materials 0.000 claims description 221
- 239000007769 metal material Substances 0.000 claims description 111
- 150000001875 compounds Chemical class 0.000 claims description 69
- 238000010438 heat treatment Methods 0.000 claims description 27
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 238000000151 deposition Methods 0.000 claims description 5
- 229910052594 sapphire Inorganic materials 0.000 description 68
- 239000010980 sapphire Substances 0.000 description 68
- 238000006243 chemical reaction Methods 0.000 description 40
- 230000015572 biosynthetic process Effects 0.000 description 38
- 239000006227 byproduct Substances 0.000 description 38
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 38
- 238000010586 diagram Methods 0.000 description 33
- 238000005530 etching Methods 0.000 description 33
- 230000008569 process Effects 0.000 description 29
- 238000001704 evaporation Methods 0.000 description 28
- 230000008020 evaporation Effects 0.000 description 27
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 27
- 239000000126 substance Substances 0.000 description 23
- 229910052715 tantalum Inorganic materials 0.000 description 23
- 229910052757 nitrogen Inorganic materials 0.000 description 21
- 229910052751 metal Inorganic materials 0.000 description 19
- 239000002184 metal Substances 0.000 description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000013078 crystal Substances 0.000 description 14
- 238000000927 vapour-phase epitaxy Methods 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 12
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical group [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 12
- 239000008187 granular material Substances 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 230000008018 melting Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 238000010894 electron beam technology Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 238000000724 energy-dispersive X-ray spectrum Methods 0.000 description 5
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 229910001936 tantalum oxide Inorganic materials 0.000 description 5
- 229910052733 gallium Inorganic materials 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- -1 gallium nitride compound Chemical class 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- 238000001947 vapour-phase growth Methods 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 240000004050 Pentaglottis sempervirens Species 0.000 description 2
- 235000004522 Pentaglottis sempervirens Nutrition 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001451 molecular beam epitaxy Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000011236 particulate material Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- 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
- H01L33/007—Processes for devices with an active region comprising only III-V compounds with a substrate not being a III-V compound comprising nitride compounds
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- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02494—Structure
- H01L21/02496—Layer structure
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- H01L21/02612—Formation types
- H01L21/02617—Deposition types
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- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
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- Condensed Matter Physics & Semiconductors (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Led Devices (AREA)
- Semiconductor Lasers (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
図1は、実施形態1に係る半導体基板100の製造方法の概略を示す図である。図1(A)は第1のGaN層を形成する工程を示す断面図、(B)はTa層を形成する工程を示す断面図、(C)は第2のGaN層及び空洞の形成途中を示す断面図、(D)は完成した半導体基板の断面図である。
(実施例4)
次に、上述した実施例1に対する比較例について説明する。この比較例では、MOCVD装置の設定条件を変更し、半導体基板100の第2のGaN層104を形成する具体的な例を説明する。
実施例1〜実施例4では、Ta層103の厚さを30nm、50nm、100nmに変更する例を示している。このように、Ta層103の厚さを変更しても、第1のGaN層104中にはエッチングによって空洞102aが形成されることを確認することができる。
次に、実施形態1に示した半導体基板100の上に形成した半導体素子の例としてLEDを形成した場合について図11を参照して説明する。
次に、成長基板の剥離を用いた発光素子の製造方法について図17を参照して説明する。
次に、複数のチャンバを有する発光素子の製造装置を用いた発光素子の製造方法について図18及び図19を参照して説明する。
Claims (8)
- 第1の基板の上に、第1の半導体層と前記第1の半導体層に接する第2の半導体層とを含む複数の化合物半導体層を形成し、
前記化合物半導体層の上に第2の基板を配置し、
前記第2の半導体層から前記第1の基板を剥離することを含み、
前記複数の化合物半導体層を形成することは、
前記第1の半導体層の一部の上に金属性材料層を含む追加的な層を形成し、
前記第1の半導体層のうち前記追加的な層の下側であって少なくとも前記金属性材料層の左右両端部分の下側に位置する部分に複数の空洞を形成し、かつ、前記空洞の大きさを拡大することを含み、
前記第2の半導体層から前記第1の基板を剥離することは、前記空洞の大きさをさらに拡大させることによって前記第1の基板と前記第2の半導体層との間の結合力を弱めるように前記第1の基板を加熱することを含む、発光素子の製造方法。 - 第1の基板の上に、第1の半導体層と前記第1の半導体層に接する第2の半導体層とを含む複数の化合物半導体層を形成し、
前記化合物半導体層の上に第2の基板を配置し、
前記第2の半導体層から前記第1の基板を剥離することを含み、
前記複数の化合物半導体層を形成することは、
前記第1の半導体層の上に金属性材料層を含む追加的な層を形成し、
前記第1の半導体層のうち前記追加的な層の下側に複数の空洞を形成し、かつ、前記空洞の大きさを拡大することを含み、
前記空洞の大きさを拡大することは、前記金属性材料層の前記空洞と接する部分に孔を形成することを含み、
前記第2の半導体層から前記第1の基板を剥離することは、前記空洞の大きさをさらに拡大させることによって前記第1の基板と前記第2の半導体層との間の結合力を弱めるように前記第1の基板を加熱することを含む、発光素子の製造方法。 - 前記第1の基板を加熱することは、前記化合物半導体層の上に前記第2の基板を付着させることを含む、請求項1または2に記載の発光素子の製造方法。
- 前記金属性材料層はTaを含むことを特徴とする、請求項1または2に記載の発光素子の製造方法。
- 前記金属性材料層は、その膜厚が5nm〜100nmの範囲内であることを特徴とする、請求項4に記載の発光素子の製造方法。
- 前記化合物半導体層の上に前記第2の基板を配置する前に、前記空洞が前記第1の基板まで拡大されることを特徴とする、請求項1または2に記載の発光素子の製造方法。
- 前記第1の半導体層および前記第2の半導体層は窒化ガリウム系の層を含むことを特徴とする、請求項1または2に記載の発光素子の製造方法。
- 前記第2基板はシリコン系基板であり、前記シリコン系基板は、前記第1基板を前記第2の半導体層から剥離する前に前記化合物半導体層の上に配置されることを特徴とする、請求項1または2に記載の発光素子の製造方法。
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2009-0079436 | 2009-08-26 | ||
KR10-2009-0079434 | 2009-08-26 | ||
KR10-2009-0079431 | 2009-08-26 | ||
KR10-2009-0079429 | 2009-08-26 | ||
KR1020090079431A KR101106149B1 (ko) | 2009-08-26 | 2009-08-26 | 반도체 기판 제조 방법 및 발광 소자 제조 방법 |
KR1020090079434A KR101106150B1 (ko) | 2009-08-26 | 2009-08-26 | 발광 소자 제조 방법 |
KR1020090079436A KR101229832B1 (ko) | 2009-08-26 | 2009-08-26 | 반도체 기판 제조 방법 및 발광 소자 제조 방법 |
KR1020090079429A KR101106136B1 (ko) | 2009-08-26 | 2009-08-26 | 반도체 기판 제조 방법 및 발광 소자 제조 방법 |
PCT/KR2010/004816 WO2011025149A2 (ko) | 2009-08-26 | 2010-07-22 | 반도체 기판 제조 방법 및 발광 소자 제조 방법 |
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JP2013503472A JP2013503472A (ja) | 2013-01-31 |
JP5847083B2 true JP5847083B2 (ja) | 2016-01-20 |
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US (4) | US8026119B2 (ja) |
EP (1) | EP2472604B1 (ja) |
JP (1) | JP5847083B2 (ja) |
CN (5) | CN104716023B (ja) |
WO (1) | WO2011025149A2 (ja) |
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US8481411B2 (en) * | 2009-06-10 | 2013-07-09 | Seoul Opto Device Co., Ltd. | Method of manufacturing a semiconductor substrate having a cavity |
WO2010143778A1 (ko) * | 2009-06-10 | 2010-12-16 | 서울옵토디바이스주식회사 | 반도체 기판, 그 제조 방법, 반도체 소자 및 그 제조 방법 |
US8860183B2 (en) * | 2009-06-10 | 2014-10-14 | Seoul Viosys Co., Ltd. | Semiconductor substrate, semiconductor device, and manufacturing methods thereof |
CN104716023B (zh) | 2009-08-26 | 2017-08-29 | 首尔伟傲世有限公司 | 制造半导体基底的方法和制造发光装置的方法 |
JP5570838B2 (ja) * | 2010-02-10 | 2014-08-13 | ソウル バイオシス カンパニー リミテッド | 半導体基板、その製造方法、半導体デバイス及びその製造方法 |
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CN104795314B (zh) | 2018-02-09 |
US20110053303A1 (en) | 2011-03-03 |
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CN104658890A (zh) | 2015-05-27 |
CN104795313B (zh) | 2017-12-08 |
CN104716023A (zh) | 2015-06-17 |
EP2472604A4 (en) | 2013-11-13 |
US8329488B2 (en) | 2012-12-11 |
US8183075B2 (en) | 2012-05-22 |
US20120202306A1 (en) | 2012-08-09 |
WO2011025149A2 (ko) | 2011-03-03 |
CN104658890B (zh) | 2018-01-05 |
US20130109121A1 (en) | 2013-05-02 |
JP2013503472A (ja) | 2013-01-31 |
US8609449B2 (en) | 2013-12-17 |
CN104716023B (zh) | 2017-08-29 |
US20120021546A1 (en) | 2012-01-26 |
CN104795314A (zh) | 2015-07-22 |
CN104795313A (zh) | 2015-07-22 |
EP2472604B1 (en) | 2020-09-09 |
CN102640307B (zh) | 2015-04-01 |
EP2472604A2 (en) | 2012-07-04 |
WO2011025149A3 (ko) | 2011-04-21 |
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