JP5711472B2 - 配線基板及びその製造方法並びに半導体装置 - Google Patents
配線基板及びその製造方法並びに半導体装置 Download PDFInfo
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Description
図1は本発明の第1の実施形態に係る配線基板(半導体パッケージ)の構成を断面図の形態で示したものである。
図9は本発明の第2の実施形態に係る配線基板(半導体パッケージ)の構成を断面図の形態で示したものである。
11,12,12a,21P…パッド、
13,13a,16,19…樹脂層(絶縁層)、
14,17,20…ビア、
15,18,21…配線層、
22…ソルダレジスト層(保護膜)、
30,30a…チップキャパシタ搭載基板、
31…チップキャパシタ(受動素子/電子部品)、
40,40a…半導体装置、
41…半導体素子(チップ/能動素子)、
43…アンダーフィル樹脂、
44…モールド樹脂(封止樹脂)、
51,51a,51b,61…支持基材、
52,52a,54,62,63…レジスト層、
53…犠牲導体層、
CM…チップ搭載エリア、
DP,RP…凹部、
VH1,VH2,VH3…ビアホール。
Claims (10)
- 複数の配線層が絶縁層を介在させて積層され、各絶縁層に形成されたビアを介して層間接続された構造を有する配線基板において、
前記配線基板の最外層の絶縁層に、前記最外層の絶縁層の表面にパッドの上面が露出するように埋め込まれた電子部品搭載用の複数の前記パッドと、
前記複数のパッドが配置された電子部品搭載領域に対応する部分の前記最外層の絶縁層に形成された凹部と
を有し、
前記凹部の側面は垂直方向に立つ垂直面であり、前記凹部の底面は前記配線基板の内側に突出する曲面であり、前記凹部の側面と底面とのコーナー部が曲面となっており、かつ、
前記電子部品搭載領域に電子部品が実装される際に、前記凹部の一部が電子部品から露出することを特徴とする配線基板。 - 前記パッドの側面と下面が前記最外層の絶縁層で被覆されており、前記パッドの下面にビアが接続されていることを特徴とする請求項1に記載の配線基板。
- 前記凹部は平面視して矩形状で配置されており、前記矩形状の凹部の長手方向の両外側の前記最外層の絶縁層に前記複数のパッドが配置されていることを特徴とする請求項1又は2に記載の配線基板。
- 前記凹部は、搭載される前記電子部品の各電極端子がそれぞれ接続される各パッド間に挟まれた領域に形成されていることを特徴とする請求項1又は2に記載の配線基板。
- 前記電子部品としてチップキャパシタが搭載されていることを特徴とする請求項1乃至4のいずれか一項に記載の配線基板。
- 前記最外層の絶縁層上の中央部分に半導体素子の搭載領域が画定され、前記搭載領域の周囲に前記チップキャパシタが搭載されていること特徴とする請求項5に記載の配線基板。
- 支持基材上に開口部が配置された第1のレジスト層を形成する工程と、
前記第1のレジスト層の開口部内の前記支持基材上に、犠牲導体層を形成する工程と、
前記第1のレジスト層を除去後、前記支持基材及び前記犠牲導体層上に、前記犠牲導体層を挟んでその両側の部分に開口部が配置された第2のレジスト層を形成する工程と、
前記第2のレジスト層の開口部内の前記支持基材上に、パッドを形成する工程と、
前記第2のレジスト層を除去後、前記支持基材及び前記犠牲導体層上に、前記パッドを覆って絶縁層を形成する工程と、
前記絶縁層上に、前記パッドに接続されるビアを含む配線層を形成する工程と、
前記支持基材及び前記犠牲導体層を除去する工程とを含むことを特徴とする配線基板の製造方法。 - 前記犠牲導体層を形成する工程において、前記支持基材を構成する材料と同じ材料を用いて前記犠牲導体層を形成し、
前記パッドを形成する工程において、めっき法により、前記支持基材上に複数の金属層を順次積層してパッドを形成するに際し、その最下層の金属層を、前記支持基材及び前記犠牲導体層を構成する材料と異なる材料を用いて形成することを特徴とする請求項7に記載の配線基板の製造方法。 - 支持基材上に開口部が配置された第1のレジスト層を形成する工程と、
前記第1のレジスト層の開口部内の前記支持基材に凹部を形成する工程と、
前記第1のレジスト層の開口部内の前記凹部に、第1パッドを形成する工程と、
前記第1のレジスト層を除去後、前記支持基材上の前記凹部を除く領域に開口部が配置された第2のレジスト層を形成する工程と、
前記第2のレジスト層の開口部内の前記支持基材の上に第2パッドを形成する工程と、
前記第2のレジスト層を除去後、前記支持基材上に、前記第1パッド及び第2パッドを覆って絶縁層を形成する工程と、
前記絶縁層上に、前記パッドに接続されるビアを含む配線層を形成する工程と、
前記支持基材を除去する工程とを含むことを特徴とする配線基板の製造方法。 - 請求項1に記載の配線基板に、半導体素子とともに電子部品が搭載されて封止樹脂で封止され、前記凹部内に前記封止樹脂が充填されていることを特徴とする半導体装置。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010132303A JP5711472B2 (ja) | 2010-06-09 | 2010-06-09 | 配線基板及びその製造方法並びに半導体装置 |
| US13/154,565 US8749073B2 (en) | 2010-06-09 | 2011-06-07 | Wiring board, method of manufacturing the same, and semiconductor device |
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| JP2010132303A JP5711472B2 (ja) | 2010-06-09 | 2010-06-09 | 配線基板及びその製造方法並びに半導体装置 |
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|---|---|
| JP2011258772A JP2011258772A (ja) | 2011-12-22 |
| JP2011258772A5 JP2011258772A5 (ja) | 2013-05-16 |
| JP5711472B2 true JP5711472B2 (ja) | 2015-04-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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