JP6623508B2 - 光源及びその製造方法、実装方法 - Google Patents
光源及びその製造方法、実装方法 Download PDFInfo
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- JP6623508B2 JP6623508B2 JP2014199677A JP2014199677A JP6623508B2 JP 6623508 B2 JP6623508 B2 JP 6623508B2 JP 2014199677 A JP2014199677 A JP 2014199677A JP 2014199677 A JP2014199677 A JP 2014199677A JP 6623508 B2 JP6623508 B2 JP 6623508B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 30
- 238000000034 method Methods 0.000 title description 15
- 239000000758 substrate Substances 0.000 claims description 218
- 239000000919 ceramic Substances 0.000 claims description 121
- 229910052751 metal Inorganic materials 0.000 claims description 89
- 239000002184 metal Substances 0.000 claims description 89
- 229920005989 resin Polymers 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 34
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 19
- 229910052737 gold Inorganic materials 0.000 claims description 19
- 239000010931 gold Substances 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 12
- 229910001020 Au alloy Inorganic materials 0.000 claims description 11
- 239000003353 gold alloy Substances 0.000 claims description 11
- 238000005304 joining Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 17
- 239000003822 epoxy resin Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 229920000647 polyepoxide Polymers 0.000 description 7
- 229910000679 solder Inorganic materials 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 229920002050 silicone resin Polymers 0.000 description 5
- 229920005992 thermoplastic resin Polymers 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 239000004954 Polyphthalamide Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920006375 polyphtalamide Polymers 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 229920000106 Liquid crystal polymer Polymers 0.000 description 2
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- -1 polybutylene terephthalate Polymers 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 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
- 239000011230 binding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- H01L2224/13001—Core members of the bump connector
- H01L2224/13099—Material
- H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/13138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/13144—Gold [Au] as principal constituent
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- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
- H01L2224/13099—Material
- H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/13138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
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- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16151—Disposition the bump 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
- H01L2224/16221—Disposition the bump 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
- H01L2224/16225—Disposition the bump 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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Description
第1の実施形態に係る光源について図面を用いて説明する。図1は、第1の実施形態に係る光源を示す概略斜視図である。図2は、第1の実施形態に係る光源を示す概略断面図である。
第1の実施形態に係る光源の製造方法に代えて、第2の実施形態に係る光源の製造方法においても第1の実施形態に係る光源を製造することができる。図7は、第2の実施形態に係る光源の製造工程を示す概略断面図である。
第1の実施形態に係る光源の製造方法に代えて、第3の実施形態に係る光源の製造方法においても第1の実施形態に係る光源を製造することができる。図8は、第3の実施形態に係る光源の製造工程を示す概略断面図である。
第1の実施形態に係る光源の製造方法に代えて、第4の実施形態に係る光源の製造方法においても第1の実施形態に係る光源を製造することができる。図8は、第4の実施形態に係る光源の製造工程を示す概略断面図である。
実装基板10とセラミックス基板30との実装方法について説明する。
発光素子の上に透光性基板を配置することもできる。透光性基板には蛍光体や反射部材、光拡散部材等を含有していてもよい。発光素子と透光性基板とは接着剤を用いて接合することができる。また、実装基板のカップ内に発光素子を載置し、その発光素子上に透光性基板を配置し、その外周を樹脂で固定することもできる。樹脂はカップ内に充填することができる。樹脂は光反射材、拡散剤、熱伝導部材、顔料、光吸収剤等を含有することができるが、光反射材を含有することが好ましい。これにより、発光素子からの光が光反射材を含む樹脂に照射され、反射され、外部に放出されるからである。この樹脂はエポキシ樹脂、シリコーン樹脂、ユリア樹脂等の熱硬化性樹脂が好ましいが、ポリフタルアミド、液晶ポリマー、ポリブチレンテレフタレート(PBT)、不飽和ポリエステル等の熱可塑性樹脂も使用することができる。
実施例1に係る光源について図面を用いて説明する。図9は、実施例1に係る光源を示す概略平面図である。図10は、実施例1に係る光源を示す概略断面図である。図11は、実施例1に係る光源を示す概略側面図である。図12は、実施例1に係る光源を示す概略側面図である。図13は、実施例1に係る光源を示す概略背面図である。第1の実施形態に係る光源とほぼ同じ構成を採るところは説明を一部省略することもある。
20 金属バンプ
30 セラミックス基板
40 発光素子
50 封止部材
60 樹脂
Claims (8)
- 実装基板と、前記実装基板上に金、銅、金合金若しくは銅合金である複数の金属バンプを用いて接合される、複数の発光素子が実装されたセラミックス基板と、を有し、
前記金属バンプは、高さが20μm乃至50μmであり、
前記セラミックス基板の中央付近に前記金属バンプを密に集中させ、前記セラミックス基板の外周付近は前記金属バンプを間引いており、
前記金属バンプを介して接合された、前記実装基板と前記セラミックス基板と隙間に樹脂が配置されている光源。 - 平面視において、前記複数の金属バンプ間には、樹脂が充填されている請求項1に記載の光源。
- 前記実装基板は、銅若しくは銅合金である請求項1又は2のいずれかに記載の光源。
- 実装基板に、高さが20μm乃至50μmである複数の金属バンプを形成する工程と、
前記実装基板上に複数の発光素子が実装されたセラミックス基板を載置し、前記金属バンプを介して前記実装基板と前記セラミックス基板とを接合する工程と、
前記金属バンプを介して接合された、前記実装基板と前記セラミックス基板との隙間に樹脂を流し込み、前記金属バンプ間に樹脂を充填させる工程と、
を有し、
前記金属バンプを形成する工程は、前記セラミックス基板の中央付近に前記金属バンプを密に集中させ、前記セラミックス基板の外周付近は前記金属バンプを間引くように前記金属バンプを形成する光源の製造方法。 - 実装基板に、高さが20μm乃至50μmである複数の金属バンプを形成する工程と、
前記実装基板上にセラミックス基板を載置し、前記金属バンプを介して前記実装基板と前記セラミックス基板とを接合する工程と、
前記金属バンプを介して接合された、前記実装基板と前記セラミックス基板との隙間に樹脂を流し込み、前記金属バンプ間に樹脂を充填させる工程と、
前記セラミックス基板上に複数の発光素子を実装する工程と、
を有し、
前記金属バンプを形成する工程は、前記セラミックス基板の中央付近に前記金属バンプを密に集中させ、前記セラミックス基板の外周付近は前記金属バンプを間引くように前記金属バンプを形成する光源の製造方法。 - セラミックス基板に、高さが20μm乃至50μmである金、銅、金合金若しくは銅合金である複数の金属バンプを形成する工程と、
実装基板上に前記セラミックス基板を載置し、前記金属バンプを介して前記実装基板と前記セラミックス基板とを接合する工程と、
前記金属バンプを介して接合された、前記実装基板と前記セラミックス基板との隙間に樹脂を流し込み、前記金属バンプ間に樹脂を充填させる工程と、
前記セラミックス基板上に複数の発光素子を実装する工程と、
を有し、
前記金属バンプを形成する工程は、前記セラミックス基板の中央付近に前記金属バンプを密に集中させ、前記セラミックス基板の外周付近は前記金属バンプを間引くように前記金属バンプを形成する光源の製造方法。 - 複数の発光素子が実装されたセラミックス基板に、高さが20μm乃至50μmである金、銅、金合金若しくは銅合金である複数の金属バンプを形成する工程と、
実装基板上に前記セラミックス基板を載置し、前記金属バンプを介して前記実装基板と前記セラミックス基板とを接合する工程と、
前記金属バンプを介して接合された、前記実装基板と前記セラミックス基板との隙間に樹脂を流し込み、前記金属バンプ間に樹脂を充填させる工程と、
を有し、
前記金属バンプを形成する工程は、前記セラミックス基板の中央付近に前記金属バンプを密に集中させ、前記セラミックス基板の外周付近は前記金属バンプを間引くように前記金属バンプを形成する光源の製造方法。 - 前記金属バンプは、直径60μm乃至120μmである請求項1乃至3のいずれか一項に記載の光源。
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