JP2012146942A - 半導体発光装置及びその製造方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 82
- 238000004519 manufacturing process Methods 0.000 title claims description 29
- 239000011521 glass Substances 0.000 claims abstract description 70
- 230000004888 barrier function Effects 0.000 claims abstract description 39
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 91
- 238000000034 method Methods 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 25
- 238000007747 plating Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000009713 electroplating Methods 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 9
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- 229920005989 resin Polymers 0.000 description 18
- 239000011347 resin Substances 0.000 description 18
- 230000008569 process Effects 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 229910052594 sapphire Inorganic materials 0.000 description 10
- 239000010980 sapphire Substances 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 6
- 229910052681 coesite Inorganic materials 0.000 description 5
- 229910052906 cristobalite Inorganic materials 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 229910052682 stishovite Inorganic materials 0.000 description 5
- 229910052905 tridymite Inorganic materials 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
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- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001962 electrophoresis Methods 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 239000006023 eutectic alloy Substances 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/93—Batch processes
- H01L24/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L24/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/04105—Bonding areas formed on an encapsulation of the semiconductor or solid-state body, e.g. bonding areas on chip-scale packages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/18—High density interconnect [HDI] connectors; Manufacturing methods related thereto
- H01L2224/19—Manufacturing methods of high density interconnect preforms
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/18—High density interconnect [HDI] connectors; Manufacturing methods related thereto
- H01L2224/20—Structure, shape, material or disposition of high density interconnect preforms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32225—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
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- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73267—Layer and HDI connectors
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- H01L2224/91—Methods for connecting semiconductor or solid state bodies including different methods provided for in two or more of groups H01L2224/80 - H01L2224/90
- H01L2224/92—Specific sequence of method steps
- H01L2224/922—Connecting different surfaces of the semiconductor or solid-state body with connectors of different types
- H01L2224/9222—Sequential connecting processes
- H01L2224/92242—Sequential connecting processes the first connecting process involving a layer connector
- H01L2224/92244—Sequential connecting processes the first connecting process involving a layer connector the second connecting process involving a build-up interconnect
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- H—ELECTRICITY
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/93—Batch processes
- H01L2224/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L2224/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/1515—Shape
- H01L2924/15153—Shape the die mounting substrate comprising a recess for hosting the device
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- H—ELECTRICITY
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- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/156—Material
- H01L2924/15786—Material with a principal constituent of the material being a non metallic, non metalloid inorganic material
- H01L2924/15788—Glasses, e.g. amorphous oxides, nitrides or fluorides
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Abstract
【解決手段】底部が平坦な凹部31aを有するガラス31を備え、凹部31の底部と側部に間隙を有するようにLED素子36を配置し、この間隙に蛍光体32が充填されている。蛍光体32の大部分がガラス31により封止され長寿命化する。さらに蛍光体層32の下面とともにガラス31下面にガスバリア層37を形成する。
【選択図】図1
Description
の発光素子1は、周囲に蛍光体層6を備え、基板3上にフリップチップ実装されたLED素子2を基板3ごとガラスのホットプレス加工により封止したものである。
透明基板上に半導体層を備える半導体発光素子の周囲直近に蛍光体が偏在し、該蛍光体とともに前記半導体発光素子が封止される半導体発光装置において、
凹部を有するガラスと、
前記半導体層に突起電極が接続し、前記凹部の底部及び側部との間に間隙を有するように配置された半導体発光素子と、
前記間隙に充填された蛍光体と、
前記ガラスの底面とともに前記間隙から露出する前記蛍光体を被覆するガスバリア層とを備えることを特徴とする。
突起電極を備える半導体発光素子と大判のガラスを準備する準備工程と、
該ガラスに複数の凹部を形成する凹部形成工程と、
該凹部に硬化前の蛍光体を滴下する蛍光体滴下工程と、
該凹部の底部と側部に間隙を有するように前記半導体発光素子を配置する半導体発光素子配置工程と、
前記ガラスの底面とともに前記間隙から露出する前記蛍光体をガスバリア層で被覆するガスバリア層形成工程と
前記ガラスを個別の前記半導体発光装置に個片化する個片化工程とを備えることを特徴とする。
(第1実施形態)
膜は数10nmで高いガスバリア性を示すため、蛍光体32の下端から侵入しようとする水分等を強く阻止する。白色反射部材38は、二酸化チタン等の反射性微粒子、前述のシリコーン樹脂やオルガノポリシロキサンなどのバインダ、溶媒及び触媒とを混練したペーストを150℃程度で焼結したものである。白色反射部材38は下方に向かう光を上方に反射させることでLED装置30の発光効率を改善している。なお高度な長寿命化が不要な場合はガスバリア層37を無くすこともできる。また接続電極39はメッキ用共通電極であるTiW層と、電解メッキ法で作成したCu層、Ni層及びAu層とを有し、総厚が10μm程度である。
法によりガラス31の上面全体にSiO2膜を形成する。このときバンプ電極35上にもSiO2膜が形成されるが、後述するように研磨で除去する。
(第2実施形態)
(第3実施形態)
(第4実施形態)
白色反射部材38,58と同様に下方に向かう光を上方に反射させることでLED装置60の発光効率を改善している。
31,51,61…ガラス、
31a,61a…凹部、
31b…切りかき部、
32,62…蛍光体、
33…サファイア基板、
34…半導体層、
35…バンプ電極、
36…LED素子(半導体発光素子)、
37,57,67…ガスバリア層、
38,58…白色反射部材、
39,69…接続電極、
41…樹脂層、
42…接合用金属、
43…板材、
44…上電極、
45…スルーホール、
46…下電極、
47…回路基板、
68…金属反射層、
68…スリット。
Claims (10)
- 透明基板上に半導体層を備える半導体発光素子の周囲直近に蛍光体が偏在し、該蛍光体とともに前記半導体発光素子が封止される半導体発光装置において、
凹部を有するガラスと、
前記半導体層に突起電極が接続し、前記凹部の底部及び側部との間に間隙を有するように配置された半導体発光素子と、
前記間隙に充填された蛍光体と、
前記ガラスの底面とともに前記間隙から露出する前記蛍光体を被覆するガスバリア層とを備えることを特徴とする半導体発光装置。 - 前記蛍光体がスペーサを含有していることを特徴とする請求項1に記載の半導体発光装置。
- 前記ガラスの前記凹部を有する側の面であって前記突起電極が占める以外の領域に白色反射部材を備えることを特徴とする請求項1又は2に記載の半導体発光装置。
- 前記ガラスの底面に金属反射層を備え、前記ガスバリア層が該金属反射層を被覆することを特徴とする請求項1又は2に記載の半導体発光装置。
- 前記金属反射層がスリットで分割されていることを特徴とする請求項4に記載の半導体発光装置。
- 前記突起電極と接続し、メッキ法により形成した接続電極を設けることを特徴とする請求項1から5のいずれか一項に記載の半導体発光装置。
- 透明基板上に半導体層を備える半導体発光素子の周囲直近に蛍光体が偏在し、該蛍光体とともに前記半導体発光素子が封止される半導体発光装置の製造方法において、
突起電極を備える半導体発光素子と大判のガラスを準備する準備工程と、
該ガラスに複数の凹部を形成する凹部形成工程と、
該凹部に硬化前の蛍光体を滴下する蛍光体滴下工程と、
該凹部の底部と側部に間隙を有するように前記半導体発光素子を配置する半導体発光素子配置工程と、
前記ガラスの底面とともに前記間隙から露出する前記蛍光体をガスバリア層で被覆するガスバリア層形成工程と
前記ガラスを個別の前記半導体発光装置に個片化する個片化工程とを備えることを特徴とする半導体発光装置の製造方法。 - 前記凹部形成工程においてエッチング法により底部が平坦な凹部を形成することを特徴とする請求項7に記載の半導体発光装置の製造方法。
- 前記準備工程において準備する前記ガラスが底面に金属反射層を備えていることを特徴とする請求項7に記載の半導体発光装置の製造方法。
- 前記ガスバリア層から露出した前記パンプ電極に接続する接続電極を電解メッキ法で形成することを特徴とする請求項7から9のいずれか一項に記載の半導体発光装置の製造方法。
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Cited By (24)
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JP2014220294A (ja) * | 2013-05-02 | 2014-11-20 | シチズン電子株式会社 | Ledパッケージ |
CN104900784A (zh) * | 2015-05-22 | 2015-09-09 | 厦门多彩光电子科技有限公司 | Led封装结构及其制造方法 |
KR20150140045A (ko) * | 2014-06-05 | 2015-12-15 | 엘지이노텍 주식회사 | 발광소자 패키지 |
JP2017055037A (ja) * | 2015-09-11 | 2017-03-16 | 株式会社東芝 | 半導体発光装置およびその製造方法 |
JP2017069416A (ja) * | 2015-09-30 | 2017-04-06 | 日亜化学工業株式会社 | 発光装置 |
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