JP5154819B2 - 基板及びその製造方法 - Google Patents
基板及びその製造方法 Download PDFInfo
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- JP5154819B2 JP5154819B2 JP2007097614A JP2007097614A JP5154819B2 JP 5154819 B2 JP5154819 B2 JP 5154819B2 JP 2007097614 A JP2007097614 A JP 2007097614A JP 2007097614 A JP2007097614 A JP 2007097614A JP 5154819 B2 JP5154819 B2 JP 5154819B2
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Description
また、各素子の小型化に伴って隣接する貫通電極間の距離が狭くなるにつれて導電層の設置スペースが制限されると、十分な気密性を確保することが難しくなる。
この後の工程では、図2B中に示す貫通孔120及びその周辺を囲むA部に封止構造130を形成する際の手順について説明する。
そのため、密着層150の表面は、貫通孔120の内壁(または貫通電極107の外周)からの周縁部までの半径方向(周辺方向)の長さに、第1凸部380、第2凸部390、凹部400の上下方向の深さ(または高さ)を加算した距離を有する。このように密着層150は、第1凸部380、第2凸部390、凹部400の表面(半径方向及び上下方向の壁面を含む)に接合されるため、絶縁層110との間の気密性が高められており、絶縁層110に対して強固に積層される。
また、上記各実施例では、基板101の下面側のみに第1凹部180、第2凹部190あるいは第1凸部380、第2凸部390を設ける構成について説明したが、これに限らず、基板101の上面側及び下面側(貫通電極107の両端側)に第1凹部180、第2凹部190あるいは第1凸部380、第2凸部390を設けるようにしても良いのは勿論である。また、上記実施例3の粗面400を貫通電極107の両端側の開口内壁に形成し、絶縁層110、密着層150、給電層160を介して電極層170を積層するようにしても良い。
101 基板
101A ベース
101B 壁部
101C 収納部
102 発光素子
103 カバー
107 貫通電極
108 半田バンプ
110 絶縁層
120 貫通孔
130,330,430 封止構造
140 凹凸部
150 密着層
160 給電層
170 電極層
180 第1凹部
190 第2凹部
200 凸部
380 第1凸部
390 第2凸部
400 凹部
440 粗面
Claims (23)
- 貫通電極を有する基板の製造方法において、
前記貫通電極の端部周辺に位置する前記基板表面に少なくとも凹部または凸部の何れか一方を含む凹凸部を形成する工程と、
前記貫通電極の端部表面及び前記凹凸部の表面に外部接続用の電極層を形成する工程と、
を有することを特徴とする基板の製造方法。 - 前記凹凸部は、前記貫通電極の周囲を囲むように形成されることを特徴とする請求項1に記載の基板の製造方法。
- 前記凹凸部は、少なくとも前記凹部または前記凸部の何れか一方が複数配置され、前記複数の凹部または前記複数の凸部が前記貫通電極の中心から周辺方向の異なる位置に形成されることを特徴とする請求項1または2に記載の基板の製造方法。
- 前記外部接続用の電極層を形成する工程において、前記凹凸部の全表面に前記外部接続用の電極層を形成することを特徴とする請求項1乃至3の何れかに記載の基板の製造方法。
- 前記基板表面に絶縁層を形成する工程と、
前記凹凸部の表面に前記絶縁層に対する密着性及び導電性を有する密着層を形成する工程と、をさらに有することを特徴とする請求項1乃至4の何れかに記載の基板の製造方法。 - 前記凹部の深さは1μm〜50μmであり、前記凸部の高さは1μm〜10μmであることを特徴とする請求項1乃至5の何れかに記載の基板の製造方法。
- 前記貫通電極の外周と、該貫通電極の外周に最も近接している凹凸部との間の距離が10μm〜100μmであることを特徴とする請求項1乃至6の何れかに記載の基板の製造方法。
- 前記外部接続用の電極層上にバンプが形成されていることを特徴とする請求項1乃至7の何れかに記載の基板の製造方法。
- 前記基板はシリコンからなることを特徴とする請求項1乃至8の何れかに記載の基板の製造方法。
- 前記貫通電極及び前記外部接続用の電極層が電解めっきにより形成されていることを特徴とする請求項1乃至9の何れかに記載の基板の製造方法。
- 前記貫通電極を形成するための貫通孔を形成する工程と、
前記貫通孔内の途中まで前記貫通電極を形成する工程と、をさらに有することを特徴とする請求項1乃至10の何れかに記載の基板の製造方法。 - 前記貫通孔の開口内壁に粗化処理を施す工程を有することを特徴とする前記請求項11に記載の基板の製造方法。
- 貫通電極を有する基板において、
基板表面の前記貫通電極の端部周辺に形成され、少なくとも凹部または凸部の何れか一方を含む凹凸部と、
前記貫通電極の端部表面及び前記凹凸部の表面に形成される外部接続用の電極層と
を備えたことを特徴とする基板。 - 前記凹凸部は、前記貫通電極の周囲を囲むように形成されていることを特徴とする請求項13に記載の基板。
- 前記凹凸部は、少なくとも前記凹部または前記凸部の何れか一方が複数配置され、前記複数の凹部または前記複数の凸部が前記貫通電極の中心から周辺方向の異なる位置に配置されていることを特徴とする請求項13または14に記載の基板。
- 前記貫通電極が形成される貫通孔の内壁の少なくとも一部が微小な凹凸を有する粗面であることを特徴とする請求項13乃至15の何れかに記載の基板。
- 前記外部接続用の電極層は、前記凹凸部の全表面に形成されることを特徴とする請求項13乃至16の何れかに記載の基板。
- 前記基板表面には絶縁層が形成されており、
前記凹凸部の表面に積層され、前記絶縁層に対する密着性及び導電性を有する密着層を有することを特徴とする請求項13乃至17の何れかに記載の基板。 - 前記凹部の深さは1μm〜50μmであり、前記凸部の高さは1μm〜10μmであることを特徴とする請求項13乃至18の何れかに記載の基板。
- 前記貫通電極の外周と、該貫通電極の外周に最も近接している凹凸部との間の距離が10μm〜100μmであることを特徴とする請求項13乃至19の何れかに記載の基板。
- 前記外部接続用の電極層上にバンプが形成されていることを特徴とする請求項13乃至20の何れかに記載の基板。
- 前記基板はシリコンからなることを特徴とする請求項13乃至21の何れかに記載の基板。
- 前記貫通電極及び前記外部接続用の電極層が電解めっきにより形成されていることを特徴とする請求項13乃至22の何れかに記載の基板。
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US12/061,203 US8481863B2 (en) | 2007-04-03 | 2008-04-02 | Substrate and method for manufacturing the same |
KR1020080030590A KR20080090307A (ko) | 2007-04-03 | 2008-04-02 | 기판 및 그 제조 방법 |
EP08154036.1A EP1978558B1 (en) | 2007-04-03 | 2008-04-03 | Substrate and method for manufacturing the same |
TW097112124A TW200847366A (en) | 2007-04-03 | 2008-04-03 | Substrate and method for manufacturing the same |
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JP5139347B2 (ja) * | 2009-02-18 | 2013-02-06 | 新光電気工業株式会社 | 電子部品装置及びその製造方法 |
KR101091304B1 (ko) | 2010-01-20 | 2011-12-07 | 엘지이노텍 주식회사 | 발광 소자 패키지 및 그 제조방법 |
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