JP6344689B2 - 基板、発光装置、照明用光源、および照明装置 - Google Patents
基板、発光装置、照明用光源、および照明装置 Download PDFInfo
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- JP6344689B2 JP6344689B2 JP2014140881A JP2014140881A JP6344689B2 JP 6344689 B2 JP6344689 B2 JP 6344689B2 JP 2014140881 A JP2014140881 A JP 2014140881A JP 2014140881 A JP2014140881 A JP 2014140881A JP 6344689 B2 JP6344689 B2 JP 6344689B2
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- 239000000758 substrate Substances 0.000 title claims description 180
- 238000005286 illumination Methods 0.000 title claims description 37
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 92
- 239000011889 copper foil Substances 0.000 claims description 91
- 239000000463 material Substances 0.000 claims description 65
- 238000007789 sealing Methods 0.000 claims description 34
- 239000004065 semiconductor Substances 0.000 claims description 28
- 230000004048 modification Effects 0.000 description 22
- 238000012986 modification Methods 0.000 description 22
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 18
- 239000002245 particle Substances 0.000 description 17
- 229920005989 resin Polymers 0.000 description 14
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- 229920000647 polyepoxide Polymers 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000036544 posture Effects 0.000 description 4
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- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 239000003086 colorant Substances 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000001579 optical reflectometry Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
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- H01L2224/48228—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 connecting the wire to a bond pad of the item the bond pad being disposed in a recess of the surface of the item
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- H01L2224/484—Connecting portions
- H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
- H01L2224/48465—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
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- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/48475—Connecting portions connected to auxiliary connecting means on the bonding areas, e.g. pre-ball, wedge-on-ball, ball-on-ball
- H01L2224/48476—Connecting portions connected to auxiliary connecting means on the bonding areas, e.g. pre-ball, wedge-on-ball, ball-on-ball between the wire connector and the bonding area
- H01L2224/48477—Connecting portions connected to auxiliary connecting means on the bonding areas, e.g. pre-ball, wedge-on-ball, ball-on-ball between the wire connector and the bonding area being a pre-ball (i.e. a ball formed by capillary bonding)
- H01L2224/48478—Connecting portions connected to auxiliary connecting means on the bonding areas, e.g. pre-ball, wedge-on-ball, ball-on-ball between the wire connector and the bonding area being a pre-ball (i.e. a ball formed by capillary bonding) the connecting portion being a wedge bond, i.e. wedge on pre-ball
- H01L2224/4848—Connecting portions connected to auxiliary connecting means on the bonding areas, e.g. pre-ball, wedge-on-ball, ball-on-ball between the wire connector and the bonding area being a pre-ball (i.e. a ball formed by capillary bonding) the connecting portion being a wedge bond, i.e. wedge on pre-ball outside the semiconductor or solid-state body
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- H01L2224/732—Location after the connecting process
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Description
図1は、本実施の形態における基板100の構成概要を示す上面図である。なお、図1では、基板100の特徴を明確に示すために、基板100の一部の上面図を示している。
基材109は、長尺状で矩形の板材である。基材109は、その長手方向(X軸方向)の長さをL1とし、短手方向(Y軸方向)の長さをL2とする。基材109のアスペクト比L1/L2は、L1/L2≧10であることが好ましい。
銅箔層110は、基板100に実装されるLEDに電力を供給する配線として機能する金属層であり、基材109の表面に所定形状に形成されている。
レジスト層120は、銅箔層110を覆うように形成された絶縁膜であり、上述のように白色レジストの被膜によって実現されている。
図5A、図5Bは、本実施の形態における発光装置200の構成概要を示す図である。具体的には、図5Aは、発光装置200の端部の斜視図であり、図5Bは、発光装置200の側面図である。
図6は、基板100の変形例1における基板101の構成概要を示す上面図である。
図7は、基板100の変形例2における基板102の構成概要を示す上面図である。
図8は、基板100の変形例3における基板103の構成概要を示す上面図である。
図9は、基板100の変形例4における基板104の構成概要を示す上面図である。
図10は、基板100の変形例5における基板105の構成概要を示す上面図である。
次に、本開示の実施の形態における照明装置について、図11を参照して説明する。
次に、本開示の実施の形態における照明用光源について図13を参照して説明する。図13は、本実施の形態における照明用光源500の斜視図である。
次に、本開示の実施の形態におけるさらに他の照明装置について図14を用いて説明する。
以上、本開示における基板および発光装置等について、実施の形態及び変形例に基づいて説明したが、本開示は、これらの実施の形態及び変形例に限定されるものではない。
2、2A、2B、2C、2D 照明器具
30 LED(半導体発光素子)
40 封止部材
100、101、102、103、104、105 基板(基板)
109 基材
110 銅箔層
110a 連結部
111 第一部分(素子実装領域に位置する部分)
112 第二部分(第一領域の外側に位置する部分)
115、115a、115b、115c、115d 接続部
120 レジスト層
121 第一領域
122 第二領域
123 第三領域
150 素子実装領域
200 発光装置
500 照明用光源
510 外殻部材
Claims (19)
- 半導体発光素子が実装される基板であって、
板状の基材と、
前記基材上の一部に形成された銅箔層と、
上面視において、前記半導体発光素子が実装される領域である素子実装領域を囲むように設けられ、前記銅箔層がない、前記基材上の領域である第一領域と、
上面視において、前記第一領域を囲むように設けられた領域と、前記素子実装領域とを含み、前記銅箔層が形成された、前記銅箔層上の領域である第二領域と、
前記第一領域上と前記第二領域上とを覆い、前記第二領域上よりも前記第一領域上に厚く形成された白色のレジスト層とを備え、
前記基材及び前記レジスト層は、前記銅箔層よりも光の反射率が高い材料で形成されており、
前記レジスト層は、厚みが大きいほど光の反射率が高くなる
基板。 - 前記第二領域において前記銅箔層は、前記素子実装領域に位置する部分と前記第一領域の外側に位置する部分とを接続する接続部を有する
請求項1記載の基板。 - 前記素子実装領域は複数の素子実装領域のひとつであり、
前記第一領域は複数の第一領域のひとつであり、
前記接続部は複数の接続部のひとつであり、
前記複数の素子実装領域が直線状に並んで配列され、
前記複数の素子実装領域の各々に対応する前記複数の第一領域及び前記複数の接続部とを備え、
前記複数の接続部の各々は、上面視において、前記複数の素子実装領域の並び方向に対して直交しない方向に延びている
請求項2記載の基板。 - 前記素子実装領域は複数の素子実装領域のひとつであり、
前記第一領域は複数の第一領域のひとつであり、
前記接続部は複数の接続部のひとつであり、
前記複数の素子実装領域が直線状に並んで配列され、
前記複数の素子実装領域の各々に対応する前記複数の前記第一領域及び前記複数の接続部を備え、
前記複数の接続部の1つは、上面視において、前記複数の接続部の他の接続部とは異なる方向に延びている
請求項2記載の基板。 - 前記接続部は、上面視において前記素子実装領域から互いに異なる方向に延びている複数の接続部のひとつである
請求項2記載の基板。 - 前記素子実装領域は複数の素子実装領域のひとつであり、
前記接続部は複数の接続部のひとつであり、
前記複数の接続部は、上面視において前記複数の素子実装領域の並び方向と平行に延びる
請求項2記載の基板。 - 前記素子実装領域は複数の素子実装領域のひとつであり、
前記複数の素子実装領域のうち、少なくとも一組の隣り合う2つの素子実装領域の間に、前記第二領域における前記銅箔層と電気的に分離された連結部をさらに備える
請求項2記載の基板 - 上面視において、前記第二領域に囲まれ、前記銅箔層がない、前記基材上の領域である第三領域を更に備え、
前記レジスト層は、さらに前記第三領域上を覆い、かつ、前記第二領域上よりも前記第三領域上において厚い
請求項1〜7のいずれか1項に記載の基板。 - 基板と、
前記基板に実装された半導体発光素子とを備え、
前記基板は、
板状の基材と、
前記基材上の一部に形成された銅箔層と、
上面視において、前記半導体発光素子が実装された素子実装領域を囲むように設けられ、前記銅箔層がない、前記基材上の領域である第一領域と、
上面視において、前記第一領域を囲むように設けられた領域と、前記素子実装領域とを含み、前記銅箔層が形成された、前記銅箔層上の領域である第二領域と、
前記第一領域上と前記第二領域上とを覆い、前記第二領域上よりも前記第一領域上に厚く形成された白色のレジスト層とを備え、
前記基材及び前記レジスト層は、前記銅箔層よりも光の反射率が高い材料で形成されており、
前記レジスト層は、厚みが大きいほど光の反射率が高くなる
発光装置。 - 前記第二領域において前記銅箔層は、前記素子実装領域に位置する部分と前記第一領域の外側に位置する部分とを接続する接続部を有する
請求項9記載の発光装置。 - 前記半導体発光素子は複数の半導体発光素子のひとつであり、
前記素子実装領域は複数の素子実装領域のひとつであり、
前記第一領域は複数の第一領域のひとつであり、
前記接続部は複数の接続部のひとつであり、
前記基板には、直線状に並んだ前記複数の素子実装領域の各々に前記複数の半導体発光素子が直線状に並んで実装されており、
前記複数の素子実装領域の各々に対応する前記複数の第一領域及び前記複数の接続部とを備え、
前記複数の接続部の各々は、上面視において、前記複数の素子実装領域の並び方向に対して直交しない方向に延びている
請求項10記載の発光装置。 - 前記半導体発光素子は複数の半導体発光素子のひとつであり、
前記素子実装領域は複数の素子実装領域のひとつであり、
前記第一領域は複数の第一領域のひとつであり、
前記接続部は複数の接続部のひとつであり、
前記基板には、直線状に並んだ前記複数の素子実装領域の各々に前記複数の半導体発光素子が直線状に並んで実装されており、
前記複数の素子実装領域の各々に対応する前記複数の第一領域及び前記複数の接続部とを備え、
前記複数の接続部の1つは、上面視において、前記複数の接続部の他の接続部とは異なる方向に延びている
請求項10記載の発光装置。 - 前記接続部は、上面視において、前記素子実装領域から互いに異なる方向に延びる複数の接続部のひとつである
請求項10記載の発光装置。 - 前記半導体発光素子は複数の半導体発光素子のひとつであり、
前記素子実装領域は複数の素子実装領域のひとつであり、
前記第一領域は複数の第一領域のひとつであり、
前記接続部は複数の接続部のひとつであり、
前記基板には、直線状に並んだ前記複数の素子実装領域の各々に前記複数の半導体発光素子が直線状に並んで実装されており、
前記複数の素子実装領域の各々に対応する前記複数の第一領域及び前記複数の接続部とを備え、
前記複数の半導体発光素子および前記複数の接続部を一括封止する直線状の封止部材とをさらに備える
請求項10記載の発光装置。 - 前記素子実装領域は複数の素子実装領域のひとつであり、
前記接続部は複数の接続部のひとつであり、
前記複数の接続部は、上面視において前記複数の素子実装領域の並び方向と平行に延びる
請求項10記載の発光装置。 - 前記素子実装領域は複数の素子実装領域のひとつであり、
前記複数の素子実装領域のうち、少なくとも一組の隣り合う2つの素子実装領域の間に、前記第二領域における前記銅箔層と電気的に分離された連結部をさらに備える
請求項10記載の発光装置。 - 上面視において前記第二領域に囲まれ、前記銅箔層がない、前記基材上の領域である第三領域をさらに備え、
前記レジスト層は、さらに前記第三領域上を覆い、かつ、前記第二領域上よりも前記第三領域上の方が厚い
請求項9〜16のいずれか1項に記載の発光装置。 - 請求項9〜17のいずれか1項に記載の発光装置と、
前記発光装置が内方に配置された透光性の外殻部材と
を備える照明用光源。 - 請求項9〜17のいずれか1項に記載の発光装置と、
前記発光装置が取り付けられ、前記発光装置に発光のための電力を供給する照明器具と
を備える照明装置。
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