JP7225754B2 - 半導体ic内蔵回路基板及びその製造方法 - Google Patents
半導体ic内蔵回路基板及びその製造方法 Download PDFInfo
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Description
11,12 ランドパターン
20 ハンダ
100 半導体IC内蔵回路基板
101 半導体IC内蔵回路基板の下面
102 半導体IC内蔵回路基板の上面
111~114 絶縁層
111a,113a,113b,114a,114b,261~263,271~273 開口部
121,122 ソルダーレジスト
130 モールド樹脂
211,212,211,222,231,241,242 配線パターン
211a 配線パターンの表面
251~254 ビア導体
253a ビア
300 半導体IC
310 チップ部
311 半導体基板
311a 半導体基板の主面
311b 半導体基板の裏面
312 多層配線構造体
313 パッシベーション膜
314,315 パッド電極
316,317 ビア導体
320 再配線構造体
321 再配線層
321a,321b 再配線パターン
322 保護膜
400 電子部品
401 端子電極
402 ハンダ
C ビア
E1,E2 外部端子
L ランドパターン
L1~L4 導体層
P1,P2 配列ピッチ
S1,S2 区間
Claims (8)
- 複数の絶縁層と、複数の導体層と、前記複数の絶縁層の少なくとも一つに埋め込まれた半導体ICとを備え、
前記半導体ICは、主面に設けられた複数のパッド電極と、前記複数のパッド電極に接続された再配線層とを有し、
前記再配線層は、前記複数のパッド電極のうち複数の電源パッドを覆うとともに、前記複数の電源パッドに共通に接続された再配線パターンを含み、
前記複数の絶縁層は、前記半導体ICの前記主面を覆う第1の絶縁層を含み、
前記第1の絶縁層は、前記複数の電源パッドと重なる位置において前記再配線パターンを露出させる第1の開口部を有し、
前記複数の導体層は、前記第1の絶縁層上に設けられた第1の導体層を含み、
前記第1の導体層は、前記第1の開口部を介して前記再配線パターンに接続される第1の配線パターンを含み、
前記複数の絶縁層は、前記第1の導体層を覆う第2の絶縁層をさらに含み、
前記第2の絶縁層は、前記第1の開口部と重なる位置に設けられた複数の第2の開口部を有し、
前記複数の導体層は、前記第2の絶縁層上に設けられた第2の導体層をさらに含み、
前記第2の導体層は、前記複数の第2の開口部を介して前記第1の配線パターンに共通に接続される第2の配線パターンを含む、半導体IC内蔵回路基板。 - 前記複数の電源パッドのいずれかと前記複数の第2の開口部のいずれかが平面視で互いに重なることを特徴とする請求項1に記載の半導体IC内蔵回路基板。
- 前記複数の電源パッドの配列ピッチと前記複数の第2の開口部の配列ピッチが互いに異なることを特徴とする請求項2に記載の半導体IC内蔵回路基板。
- 前記複数の第2の開口部の配列ピッチが前記複数の電源パッドの配列ピッチよりも狭いことを特徴とする請求項3に記載の半導体IC内蔵回路基板。
- 前記複数の第2の開口部の配列ピッチが前記複数の電源パッドの配列ピッチよりも広いことを特徴とする請求項3に記載の半導体IC内蔵回路基板。
- 前記第2の配線パターンの表面は、前記複数の第2の開口部と重なる位置が窪んでいることを特徴とする請求項1乃至5のいずれか一項に記載の半導体IC内蔵回路基板。
- 前記複数の導体層は、前記半導体ICの裏面側に位置する第3の導体層をさらに含み、
前記第2の導体層は、平面視で前記半導体ICと重ならない位置において、前記複数の絶縁層の少なくとも一つを貫通するビアの内部に形成されたビア導体を介して前記第3の導体層と接続され、
前記ビアは、深さ方向に径が縮小する形状を有しており、
前記ビアは、前記第2及び第3の導体層の一方側に位置する第1の区間と、前記第2及び第3の導体層の他方側に位置する第2の区間を含み、
前記第1の区間における単位深さ当たりの径の縮小量は、前記第2の区間における単位深さ当たりの径の縮小量よりも大きい、請求項1乃至6のいずれか一項に記載の半導体IC内蔵回路基板。 - 主面に設けられた複数のパッド電極と、前記複数のパッド電極に接続された再配線層とを有する半導体ICであって、前記再配線層は、前記複数のパッド電極のうち複数の電源パッドを覆うとともに、前記複数の電源パッドに共通に接続された再配線パターンを含む、前記半導体ICの前記主面を第1の絶縁層で覆う工程と、
前記複数の電源パッドと重なる位置において前記再配線パターンを露出させる第1の開口部を前記第1の絶縁層に形成する工程と、
前記第1の絶縁層上に第1の導体層を形成することにより、前記第1の導体層に含まれる第1の配線パターンを前記第1の開口部を介して前記再配線パターンに接続する工程と、
前記第1の導体層を覆う第2の絶縁層を形成する工程と、
前記第1の開口部と重なる位置において前記第1の配線パターンを露出させる複数の第2の開口部を前記第2の絶縁層に形成する工程と、
前記第2の絶縁層上に第2の導体層を形成することにより、前記第2の導体層に含まれる第2の配線パターンを前記複数の第2の開口部を介して前記第1の配線パターンに共通に接続する工程と、を備える半導体IC内蔵回路基板の製造方法。
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