JP7001530B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP7001530B2 JP7001530B2 JP2018078590A JP2018078590A JP7001530B2 JP 7001530 B2 JP7001530 B2 JP 7001530B2 JP 2018078590 A JP2018078590 A JP 2018078590A JP 2018078590 A JP2018078590 A JP 2018078590A JP 7001530 B2 JP7001530 B2 JP 7001530B2
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Description
本願において、実施の態様の記載は、必要に応じて、便宜上複数のセクション等に分けて記載するが、特にそうでない旨明示した場合を除き、これらは相互に独立別個のものではなく、記載の前後を問わず、単一の例の各部分、一方が他方の一部詳細または一部または全部の変形例等である。また、原則として、同様の部分は繰り返しの説明を省略する。また、実施の態様における各構成要素は、特にそうでない旨明示した場合、理論的にその数に限定される場合および文脈から明らかにそうでない場合を除き、必須のものではない。
まず、図1および図2を用いて、マザーボード上に複数の半導体装置(半導体パッケージ)が搭載され、複数の半導体装置の間で、電気信号を伝送する電子装置の構成例について説明する。図1は、本実施の形態の半導体装置を含む電子装置の構成例を示す説明図である。また、図2は、図1に示す電子装置が備える回路の構成例を示す説明図である。なお、図1では、半導体装置PKG1と半導体装置PKG2とが電気的に接続されていることを明示的に示すため、図2に示す信号伝送経路SGPを太線により模式的に示す。
図1に示す半導体装置PKG1を例として、半導体装置PKG1内における信号伝送経路の構造例について説明する。まず、半導体装置PKG1の概要を説明した後、信号伝送経路の構造について説明する。図3は、図1に示す二個の半導体装置のうちの一方の半導体装置の上面図である。図4は、図3に示す半導体装置の下面図である。また、図5は、図3に示す放熱板を取り除いた状態で配線基板上の半導体装置の内部構造を示す平面図である。また、図6は、図3のA-A線に沿った断面図である。また、図7は、図6に示す半導体チップの電極配置面の平面図である。
次に、図6に示す半導体装置PKG1が備える複数のパッド2PDと、配線層WL1との接続構造の詳細について説明する。図8は、図7のA部の拡大平面図である。図9は、図6に示す配線基板の上面において、図8に示す複数の電極と対向する端子(パッド)の周辺を拡大して示す拡大平面図である。図10は、図9のA-A線に沿った拡大断面図である。図11は、図9のB-B線に沿った拡大断面図である。図12は、図9と同じ平面において、図6に示す第2配線層を示す拡大平面図である。図13は、図10に示すパッド、ビア、ビアランド、配線、および導体パターンの平面視における位置関係を示す拡大平面図である。図14は、図13に示す複数の信号伝送経路のうちの一つをさらに拡大して示す拡大平面図である。図15は、図13のA-A線に沿った拡大断面図である。
例えば、図10に示す半導体装置PKG1は、領域CHR2において、パッド形成層PDLの下地層である絶縁膜PPFが露出する構造になっている。半導体装置PKG1に対する変形例として、図25および図26に示す半導体装置PKG3のように、領域CHR2において、絶縁膜PPF上に導体パターン2CPgが形成されていても良い。図25は、図6に示す半導体装置に対する変形例である半導体装置を示す断面図である。図26は、図25に示す半導体装置において、図10に対応する部分を拡大して示す拡大断面図である。
また、図10や図11に示す例では、半導体チップCHP1の電極3PDと配線基板SUB1のパッド2PDとを電気的に接続する導電性部材が、半田バンプである突起電極3BPである例について説明した。しかし、電極3PDと配線基板SUB1のパッド2PDとを電気的に接続する導電性部材には種々の変形例がある。図27は、図11に対する他の変形例である半導体装置の拡大断面図である。例えば、図27に示す半導体装置PKG4の場合、電極3PDと配線基板SUB1のパッド2PDとを電気的に接続する突起電極(導電性部材)3BPは、柱状に延びる金属部材であるピラーバンプBP1と、半田材BP2と、を含んでいる。ピラーバンプ(Cuピラー)BP1は、銅(Cu)を主成分とする金属から成り、パッド2PDと対向する先端面を備える。また、半田材BP2は、ピラーバンプBP1の先端面に接合される。半導体装置PKG1が備える突起電極3BPの場合、図11に示す突起電極3BPと比較して、半田材の使用量が少ない。
図6に示す例では、パッド形成層PDLおよびランド形成層LDL以外に7層の配線層を備える配線基板に適用した実施態様を示している。ただし、配線基板が備える配線層数には種々の変形例がある。図28および図29は、図6に示す半導体装置に対する他の変形例である半導体装置を示す断面図である。図28に示す半導体装置PKG5の場合、パッド形成層PDLとランド形成層LDLとの間には、配線層WL1、WL2およびWL3から成る3層構造の配線層を有する。半導体装置PKG5の場合、コア絶縁層である絶縁層2CRの上面2Ct上に配線層WL2があり、絶縁層2CRの下面2Cbに配線層WL3がある。配線層WL2には、グランドプレーンである大面積の導体パターン2CPs2が配置されている。また、配線層WL3には、電源プレーンである大面積の導体パターン2CPd3が形成されている。
また、図9に示す例では、列3PL1~列3PL6の各列には、信号パッドSxPのみが配置され、基準電位が供給されるパッドVsPや電源電位が供給されるパッドVdPが配置されていない。図9に示す列3PL1~列3PL6の各列にパッドVsPやパッドVdPが配置されていても良い。この場合、信号パッドSxPの間にパッドVsPやパッドVdPが配置される場合、これらのパッド2PDには、図14に示すビア2v1と同じ形状のビア2vが接続される。また、信号パッドSxPの間に配置されるパッドVsPやパッドVdPは、図14に示すビアランド2LS1と同じ形状のビアランド(図示は省略)に電気的に接続される。この場合、図12に示す複数の配線2d1のうちの一部を基準電位の供給経路として利用しても良い。あるいは、基準電位または電源電位が供給されるビアランドの下層に図14に示すビア2v1と同じ形状のビア2vが接続され、図15に示す導体パターン2CPs2や導体パターン2CPd2と電気的に接続されても良い。図9に示す列3PL1~列3PL6の各列にパッドVsPやパッドVdPが配置される場合、パッドVsPやパッドVdPをリファレンス経路として利用することができる。
また、図6に示す半導体装置PKG1の場合、複数のパッド2PDと、配線層WL1との接続構造についての説明を判り易くするため、単純化された構成例について説明した。しかし、上記した技術およびその変形例は、種々の構成の半導体装置に適用できる。例えば、半導体装置PKG1は配線基板SUB1上に1個の半導体チップCHP1が搭載されている。しかし、半導体チップCHP1を含む電子部品の数は1個に限定されない。例えば、配線基板SUB1上に複数の半導体チップが搭載された、マルチチップモジュールに適用する場合もある。また、半導体チップ(半導体部品、電子部品)に加えて、半導体パッケージ(半導体部品、電子部品)、例えばDDR(Double-Data-Rate)メモリやフラッシュメモリ、PMIC(Power Management Integrated Circuits)等も含むマルチパッケージモジュールに適用する場合もある。また、半導体チップCHP1の他にコンデンサやインダクタなどの電子部品が搭載されていても良い。例えば、交流信号の信号伝送経路の途中にコンデンサを直列で接続することにより、交流信号中の直流成分をカットすることができる。直流成分をカットする目的で信号伝送経路中に接続されるコンデンサは、DCカットコンデンサと呼ばれ、配線基板SUB1上に搭載される場合がある。また、半導体チップCHP1への電源供給を安定化させる観点から、電源供給経路中にバイパスコンデンサを挿入する場合がある。このバイパスコンデンサを配線基板SUB1上に搭載しても良い。
また、図2では、信号伝送の例として、シングルエンドの信号を伝送する実施態様を取り上げて説明した。ただし、信号伝送方式は、シングルエンドには限定されず、差動信号を伝送しても良い。差動信号を伝送する場合、図2に示す複数の信号伝送経路SGPのそれぞれは、一対の差動対を有する。このため、1種類の差動信号を伝送するために、2本の信号配線が必要になる。差動対を構成する2本の信号配線のそれぞれは、ノイズ影響や伝送ロスなどの条件を揃えるため、互いに隣り合って並走し、かつ、延在距離の差を小さくすることが好ましい。
また、上記では、例えば図6に示すように、ビルドアップ工法により形成されたパッケージ基板である配線基板SUB1の最上層の配線層WL1上にさらにパッド形成層PDLを設ける実施態様を取り上げて説明した。しかし、パッド形成層PDLを設けることにより、信号伝送経路の高密度化に対応する技術は、図6に示す例の他、種々の変形例に適用できる。例えば、半導体パッケージ(半導体部品、電子部品)を含む、複数の電子部品が搭載され、これらを支持する支持基板であるマザーボードや、複数のモジュールを電気的に接続するインタポーザ基板などに適用することもできる。
また、例えば、上記の通り種々の変形例について説明したが、上記で説明した各変形例同士を組み合わせて適用することができる。
以下の工程を含む半導体装置の製造方法:
(a)第1主面、前記第1主面の反対側の第2主面、前記第1主面に配列される複数のパッド、および前記第1主面と前記第2主面との間にある複数の配線層を備える配線基板を準備する工程;
(b)前記(a)工程の後、第1表面、前記第1表面の反対側の第1裏面、および前記第1表面に配列される複数の電極を備える半導体部品を、前記第1表面と前記配線基板の前記第1主面とが対向するように、前記配線基板上に搭載する工程;
前記(a)工程には、
(a1)ビルドアップ工法により、第1配線層を含む複数の配線層を形成する工程;
(a2)前記(a1)工程の後、感光性樹脂から成る第1絶縁膜を前記第1配線層上に形成する工程;
(a3)前記(a2)工程の後、前記第1絶縁膜に光を照射し、前記第1絶縁膜に複数の貫通孔を形成する工程;
(a4)前記(a3)工程の後、前記第1絶縁膜上および前記複数の貫通孔内のそれぞれにシード金属膜を形成する工程;
(a5)前記(a4)工程の後、前記シード金属膜上に複数の開口部が形成されたメッキマスクを形成し、前記複数の貫通孔内に複数のビアを、前記複数のビア上のパッド形成層に前記複数のパッドを形成する工程;
を含み、
前記(a1)工程において、前記第1配線層には、第1信号が伝送される第1ビアランドと、第1ビアランドに接続され、第1方向に延びる第1配線と、前記第1信号とは異なる第2信号が伝送される第2ビアランドと、第2ビアランドに接続され、前記第1配線と隣り合って前記第1方向に延びる第2配線と、が形成され、
前記(a4)工程において、前記第1ビアランド上には前記複数のビアに含まれる第1ビアが、前記第2ビアランド上には前記複数のビアに含まれる第2ビアが、それぞれ形成され、
前記(a5)工程において、前記第1ビア上には第1パッドが、前記第2ビア上には第2パッドが、それぞれ形成され、
前記第1方向と交差する第2方向において、前記第1ビアランドの幅は、前記第1配線の幅より大きく、
平面視において、前記第2配線は、前記第1ビアランドと隣り合い、かつ、前記第1パッドと重なる、半導体装置の製造方法。
2Cb 下面
2CP,2CP1,2CP2,2CP3,2CPd1,2CPd2,2CPd3,2CPg,2CPs1,2CPs2,2CPs3 導体パターン
2CR 絶縁層(コア材、コア絶縁層)
2Ct 上面
2d 配線
2d1,2dS1,2dS2,2dS3,2dS4 配線(第1層配線)
2d3 配線(第3層配線)
2e 絶縁膜
2LD ランド
2LS,2LS1,2LS2,2LS3,2LS4 ビアランド(信号ビアランド)
2PD,VdP,VsP パッド(端子、ボンディングパッド、ボンディングリード、半導体チップ接続用端子)
2PDs,2s,3s 側面
2t 上面(面、主面、チップ搭載面、第1主面)
2THW スルーホール配線
2v,2v1,2v1,2v12,2v2,2v23,2v3,2v4,2vd,2vd2,2vd3,2vs,2vs1,2vs2,2vs3 ビア
2VH 貫通孔
3b 裏面(主面、下面)
3BP 突起電極(導電性部材、バンプ電極)
3PD,Vd,Vs 電極(パッド、電極パッド、ボンディングパッド)
3PF 絶縁膜(パッシベーション膜、保護絶縁膜)
3PL1,3PL2,3PL3,3PL4,3PL5,3PL6,3PL7,3PL8 列
3t 表面(主面、上面)
BDhs 接着材(放熱樹脂)
BP1 ピラーバンプ(Cuピラー)
BP2 半田材
CHP1 半導体チップ
CHR1,CHR2 領域
CHRs 辺
DD1,DD2,DL1,DL2,DV1,DV2,DVd1,DVd2,DVd3,DVs1,DVs2,DVs3 幅
DP1,DVc1 直径
EDV1 電子装置(電子機器)
HS 放熱板(ヒートスプレッダ、放熱部材)
LDL ランド形成層(端子形成層)
MB1 配線基板(マザーボード、実装基板)
MRF メッキマスク
P1、P2 ピッチ(中心間距離)
PDL パッド形成層(端子形成層)
PHL 光
PHM フォトマスク(レチクル)
PHMH、RFH 開口部
PKG1,PKG2,PKG3,PKG4,PKG5,PKG6 半導体装置
PPF 絶縁膜(感光性高分子膜)
Rx,Sx,Tx 信号電極
SB 半田ボール(半田材、外部端子、電極、外部電極)
SFR 支持枠(スティフナリング)
SGP 信号伝送経路
SGPR 入力信号伝送経路
SGPT 出力信号伝送経路
SGR,SGT 信号
SR1,SR2 絶縁膜
SUB1 配線基板
SxP,SxP1,SxP2,SxP3,SxP4,SxP5,SxP6 信号パッド
UF アンダフィル樹脂(絶縁性樹脂)
VDD 電源電位(第2電位)
VSS 基準電位(第1電位)
WL1,WL2,WL3,WL4,WL5,WL6,WL7 配線層
Claims (16)
- 第1表面、前記第1表面の反対側の第1裏面、および前記第1表面に配列された複数の電極を備える半導体チップと、
前記半導体チップが搭載された第1主面、前記第1主面の反対側の第2主面、前記第1主面に配列された複数のパッド、および前記第1主面と前記第2主面との間にある複数の配線層を備える配線基板と、
を有し、
前記半導体チップの前記複数の電極と前記配線基板の前記複数のパッドとは、互いに対向し、かつ導電性部材を介して電気的に接続され、
前記配線基板は、前記複数のパッドが形成されたパッド形成層と、前記複数の配線層のうち前記パッド形成層の最も近くにある第1配線層と、を有し、
前記第1配線層には、平面視において前記複数のパッドと重なる位置に配置され、ビアを介して前記複数のパッドと電気的に接続された複数の導体パターンと、前記複数の導体パターンに接続された複数の第1層配線と、が形成され、
前記配線基板の前記第1主面および前記複数の配線層のそれぞれは、前記半導体チップと重なる第1領域と、前記半導体チップと重ならず、かつ、前記第1領域の周囲にある第2領域と、を含み、
前記複数の第1層配線のそれぞれは、前記第1領域と前記第2領域とを跨ぐように延び、
前記複数のパッドは、第1信号が伝送される第1パッドと、前記第1信号と異なる第2信号が伝送される第2パッドと、を含み、
前記複数の導体パターンは、平面視において前記第1パッドと重なる位置に配置され、第1ビアを介して前記第1パッドと電気的に接続された第1ビアランドと、平面視において前記第2パッドと重なる位置に配置され、第2ビアを介して前記第2パッドと電気的に接続された第2ビアランドと、を含み、
前記複数の第1層配線は、前記第1ビアランドに接続され、第1方向に延びる第1配線と、前記第2ビアランドに接続され、前記第1配線と隣り合って前記第1方向に延びる第2配線と、を含み、
前記第1方向と交差する第2方向において、前記第1ビアランドの幅は、前記第1配線の幅より大きく、
平面視において、前記第2配線は、前記第1ビアランドと隣り合い、かつ、前記第1パッドと重なり、
平面視において、前記第1ビアランドは、前記第1方向の第1幅と、前記第2方向の第2幅と、を有し、
前記第1ビアランドの前記第2幅は、前記第1幅よりも小さく、
前記第1パッドと前記第2配線とが重なる領域において、前記第2配線の前記第2方向の幅は、前記第1ビアランドの前記第2幅より小さく、
平面視において、前記第1ビアは、前記第1方向の第3幅と、前記第2方向の第4幅と、を有し、
前記第1ビアの前記第4幅は、前記第3幅より小さく、
前記第1ビアランドの前記第2幅は、前記第1ビアの前記第4幅より大きく、
前記第1ビアランドの前記第1幅は、前記第1ビアの前記第3幅より大きく、
前記複数のパッドは、第1電位が供給される複数の第1電位パッドを含み、
前記複数の導体パターンは、複数の第1電位ビアを介して前記複数の第1電位パッドのそれぞれと電気的に接続される第1導体パターンを含み、
平面視において、前記複数の第1電位ビアのそれぞれは、前記第2方向の第5幅を有し、
複数の第1電位ビアのそれぞれの前記第5幅は、前記第1ビアの前記第4幅より大きく、
前記第1方向において、前記第1配線は、前記第1ビアランドの一方側に配置され、前記第1導体パターンは、前記第1ビアランドの他方側に配置される、半導体装置。 - 請求項1において、
前記第1方向において、前記第2ビアランドは、前記第1ビアランドと前記第1導体パターンとの間に配置される、半導体装置。 - 請求項1において、
前記複数の第1電位パッドは、前記第1方向と交差する第3方向に沿って配列される、半導体装置。 - 第1表面、前記第1表面の反対側の第1裏面、および前記第1表面に配列された複数の電極を備える半導体チップと、
前記半導体チップが搭載された第1主面、前記第1主面の反対側の第2主面、前記第1主面に配列された複数のパッド、および前記第1主面と前記第2主面との間にある複数の配線層を備える配線基板と、
を有し、
前記半導体チップの前記複数の電極と前記配線基板の前記複数のパッドとは、互いに対向し、かつ導電性部材を介して電気的に接続され、
前記配線基板は、前記複数のパッドが形成されたパッド形成層と、前記複数の配線層のうち前記パッド形成層の最も近くにある第1配線層と、を有し、
前記第1配線層には、平面視において前記複数のパッドと重なる位置に配置され、ビアを介して前記複数のパッドと電気的に接続された複数の導体パターンと、前記複数の導体パターンに接続された複数の第1層配線と、が形成され、
前記配線基板の前記第1主面および前記複数の配線層のそれぞれは、前記半導体チップと重なる第1領域と、前記半導体チップと重ならず、かつ、前記第1領域の周囲にある第2領域と、を含み、
前記複数の第1層配線のそれぞれは、前記第1領域と前記第2領域とを跨ぐように延び、
前記複数のパッドは、第1信号が伝送される第1パッドと、前記第1信号と異なる第2信号が伝送される第2パッドと、を含み、
前記複数の導体パターンは、平面視において前記第1パッドと重なる位置に配置され、第1ビアを介して前記第1パッドと電気的に接続された第1ビアランドと、平面視において前記第2パッドと重なる位置に配置され、第2ビアを介して前記第2パッドと電気的に接続された第2ビアランドと、を含み、
前記複数の第1層配線は、前記第1ビアランドに接続され、第1方向に延びる第1配線と、前記第2ビアランドに接続され、前記第1配線と隣り合って前記第1方向に延びる第2配線と、を含み、
前記第1方向と交差する第2方向において、前記第1ビアランドの幅は、前記第1配線の幅より大きく、
平面視において、前記第2配線は、前記第1ビアランドと隣り合い、かつ、前記第1パッドと重なり、
平面視において、前記第1ビアランドは、前記第1方向の第1幅と、前記第2方向の第2幅と、を有し、
前記第1ビアランドの前記第2幅は、前記第1幅よりも小さく、
前記第1パッドと前記第2配線とが重なる領域において、前記第2配線の前記第2方向の幅は、前記第1ビアランドの前記第2幅より小さく、
平面視において、前記第1ビアは、前記第1方向の第3幅と、前記第2方向の第4幅と、を有し、
前記第1ビアの前記第4幅は、前記第3幅より小さく、
前記第1ビアランドの前記第2幅は、前記第1ビアの前記第4幅より大きく、
前記第1ビアランドの前記第1幅は、前記第1ビアの前記第3幅より大きく、
前記複数のパッドは、第1電位が供給される複数の第1電位パッドを含み、
前記複数の導体パターンは、複数の第1電位ビアを介して前記複数の第1電位パッドのそれぞれと電気的に接続される第1導体パターンを含み、
平面視において、前記複数の第1電位ビアのそれぞれは、前記第2方向の第5幅を有し、
複数の第1電位ビアのそれぞれの前記第5幅は、前記第1ビアの前記第4幅より大きく、
前記複数の第1電位パッドは、前記第1方向と交差する第3方向に沿って配列され、
前記配線基板は、前記複数の配線層のうち前記第1配線層の最も近くにある第2配線層を有し、
前記第2配線層は、前記第1導体パターンと電気的に接続され、かつ、前記第1導体パターンの前記第1領域内の部分より面積が大きい第2導体パターンを有し、
前記第2領域において、前記複数の第1層配線のそれぞれは、前記第2配線層の第2導体パターンと重なる、半導体装置。 - 請求項3において、
前記第1電位が供給される前記第1導体パターンは、前記第1配線層において、前記第1領域および前記第2領域の両方にあり、
前記第2領域では、前記複数の第1層配線の間に前記複数の第1層配線のそれぞれと離間する前記第1導体パターンが配置される、半導体装置。 - 請求項1において、
前記複数の第1電位パッドは、前記第1方向と交差する第3方向に沿って配列され、
前記パッド形成層は、前記第2領域に配置され、かつ、前記第1電位が供給され、かつ、前記第1導体パターンの前記第1領域内の部分より面積が大きい第3導体パターンを有し、
前記第2領域において、前記複数の第1層配線のそれぞれは、前記パッド形成層の前記第3導体パターンと重なる、半導体装置。 - 請求項6において、
前記複数の第1層配線および前記複数の導体パターンは、第1絶縁膜に覆われ、
前記第2領域の前記第3導体パターンは、前記第1絶縁膜とは異なる第2絶縁膜に覆われ、
前記第1領域には前記第2絶縁膜が形成されず、前記複数のパッドは、前記第2絶縁膜から露出する、半導体装置。 - 請求項4において、
前記パッド形成層は、前記第2領域に配置され、かつ、前記第1電位が供給され、かつ、前記第1導体パターンの前記第1領域内の部分より面積が大きい第3導体パターンを有し、
前記第2領域において、前記複数の第1層配線のそれぞれは、前記パッド形成層の前記第3導体パターンと重なる、半導体装置。 - 請求項8において、
前記複数の第1層配線および前記複数の導体パターンは、第1絶縁膜に覆われ、
前記第2領域の前記第3導体パターンは、前記第1絶縁膜とは異なる第2絶縁膜に覆われ、
前記第1領域には前記第2絶縁膜が形成されず、前記複数のパッドは、前記第2絶縁膜から露出する、半導体装置。 - 請求項1において、
前記配線基板は、前記複数の配線層のうち前記第1配線層の最も近くにある第2配線層を有し、
前記第1配線層において、前記第1配線の一方の端部は前記第1ビアランドに接続され、前記第1配線の他方の端部は第4導体パターンに接続され、
前記第4導体パターンは、前記第1配線層と前記第2配線層とを電気的に接続する第1信号ビアに接続され、
前記第4導体パターンの前記第2方向の幅は、前記第1ビアランドの前記第2幅より大きい、半導体装置。 - 請求項1において、
前記配線基板は、前記複数の配線層のうち前記第1配線層の最も近くにある第2配線層を有し、
前記パッド形成層に配置された複数のパッドは、信号が伝送される複数の信号パッドを含み、
前記第1配線層に形成される前記複数の導体パターンは、前記複数の信号パッドと重なる位置に配置され、かつ、前記複数の信号パッドと電気的に接続された複数の信号ビアランドを含み、
前記複数の信号ビアランドは、前記複数の第1層配線を介して、前記第1配線層と前記第2配線層とを電気的に接続する複数の信号ビアにそれぞれ接続され、
前記複数の信号ビアランドは、前記複数の信号ビアと重ならない、半導体装置。 - 請求項1において、
前記複数の第1層配線および前記複数の導体パターンは、感光性樹脂から成る第1絶縁膜に覆われ、
前記第1絶縁膜には、前記複数の導体パターンと重なる位置に複数の貫通孔が形成され、
前記複数のビアは、前記複数の貫通孔内に埋め込まれる、半導体装置。 - 第1表面、前記第1表面の反対側の第1裏面、および前記第1表面に配列された複数の電極を備える半導体チップと、
前記半導体チップが搭載された第1主面、前記第1主面の反対側の第2主面、前記第1主面に配列された複数のパッド、および前記第1主面と前記第2主面との間にある複数の配線層を備える配線基板と、
を有し、
前記半導体チップの前記複数の電極と前記配線基板の前記複数のパッドとは、互いに対向し、かつ導電性部材を介して電気的に接続され、
前記配線基板は、前記複数のパッドが形成されたパッド形成層と、前記複数の配線層のうち前記パッド形成層の最も近くにある第1配線層と、を有し、
前記第1配線層には、平面視において前記複数のパッドと重なる位置に配置され、ビアを介して前記複数のパッドと電気的に接続された複数の導体パターンと、前記複数の導体パターンに接続された複数の第1層配線と、が形成され、
前記配線基板の前記第1主面および前記複数の配線層のそれぞれは、前記半導体チップと重なる第1領域と、前記半導体チップと重ならず、かつ、前記第1領域の周囲にある第2領域と、を含み、
前記複数の第1層配線のそれぞれは、前記第1領域と前記第2領域とを跨ぐように延び、
前記複数のパッドは、第1信号が伝送される第1パッドと、前記第1信号と異なる第2信号が伝送される第2パッドと、を含み、
前記複数の導体パターンは、平面視において前記第1パッドと重なる位置に配置され、第1ビアを介して前記第1パッドと電気的に接続された第1ビアランドと、平面視において前記第2パッドと重なる位置に配置され、第2ビアを介して前記第2パッドと電気的に接続された第2ビアランドと、を含み、
前記複数の第1層配線は、前記第1ビアランドに接続され、第1方向に延びる第1配線と、前記第2ビアランドに接続され、前記第1配線と隣り合って前記第1方向に延びる第2配線と、を含み、
前記第1方向と交差する第2方向において、前記第1ビアランドの幅は、前記第1配線の幅より大きく、
平面視において、前記第2配線は、前記第1ビアランドと隣り合い、かつ、前記第1パッドと重なり、
平面視において、前記第1ビアランドは、前記第1方向の第1幅と、前記第2方向の第2幅と、を有し、
前記第1ビアランドの前記第2幅は、前記第1幅よりも小さく、
前記第1パッドと前記第2配線とが重なる領域において、前記第2配線の前記第2方向の幅は、前記第1ビアランドの前記第2幅より小さく、
平面視において、前記第1ビアは、前記第1方向の第3幅と、前記第2方向の第4幅と、を有し、
前記第1ビアの前記第4幅は、前記第3幅より小さく、
前記第1ビアランドの前記第2幅は、前記第1ビアの前記第4幅より大きく、
前記第1ビアランドの前記第1幅は、前記第1ビアの前記第3幅より大きく、
前記複数の第1層配線および前記複数の導体パターンは、感光性樹脂から成る第1絶縁膜に覆われ、
前記第1絶縁膜には、前記複数の導体パターンと重なる位置に複数の貫通孔が形成され、
前記複数のビアは、前記複数の貫通孔内に埋め込まれ、
前記配線基板は、前記複数の配線層のうち前記第1配線層の最も近くにある第2配線層を有し、
前記配線基板は、前記第1配線層と前記第2配線層との間にある第3絶縁膜を有し、
前記第1絶縁膜の厚さは、前記第3絶縁膜の厚さより薄い、半導体装置。 - 請求項1において、
前記半導体チップの前記複数の電極と前記配線基板の前記複数のパッドとを電気的に接続する複数の前記導電性部材は、絶縁性樹脂により封止され、
前記複数のパッドのそれぞれの側面は、前記絶縁性樹脂または前記導電性部材に接触する、半導体装置。 - 第1表面、前記第1表面の反対側の第1裏面、および前記第1表面に配列された複数の電極を備える半導体チップと、
前記半導体チップが搭載された第1主面、前記第1主面の反対側の第2主面、前記第1主面に配列された複数のパッド、および前記第1主面と前記第2主面との間にある複数の配線層を備える配線基板と、
を有し、
前記半導体チップの前記複数の電極と前記配線基板の前記複数のパッドとは、互いに対向し、かつ導電性部材を介して電気的に接続され、
前記配線基板は、前記複数のパッドが形成されたパッド形成層と、前記複数の配線層のうち前記パッド形成層の最も近くにある第1配線層と、を有し、
前記第1配線層には、平面視において前記複数のパッドと重なる位置に配置され、ビアを介して前記複数のパッドと電気的に接続された複数の導体パターンと、前記複数の導体パターンに接続された複数の第1層配線と、が形成され、
前記配線基板の前記第1主面および前記複数の配線層のそれぞれは、前記半導体チップと重なる第1領域と、前記半導体チップと重ならず、かつ、前記第1領域の周囲にある第2領域と、を含み、
前記複数の第1層配線のそれぞれは、前記第1領域と前記第2領域とを跨ぐように延び、
前記複数のパッドは、第1信号が伝送される第1パッドと、前記第1信号と異なる第2信号が伝送される第2パッドと、を含み、
前記複数の導体パターンは、平面視において前記第1パッドと重なる位置に配置され、第1ビアを介して前記第1パッドと電気的に接続された第1ビアランドと、平面視において前記第2パッドと重なる位置に配置され、第2ビアを介して前記第2パッドと電気的に接続された第2ビアランドと、を含み、
前記複数の第1層配線は、前記第1ビアランドに接続され、第1方向に延びる第1配線と、前記第2ビアランドに接続され、前記第1配線と隣り合って前記第1方向に延びる第2配線と、を含み、
前記第1方向と交差する第2方向において、前記第1ビアランドの幅は、前記第1配線の幅より大きく、
平面視において、前記第2配線は、前記第1ビアランドと隣り合い、かつ、前記第1パッドと重なり、
平面視において、前記第1ビアランドは、前記第1方向の第1幅と、前記第2方向の第2幅と、を有し、
前記第1ビアランドの前記第2幅は、前記第1幅よりも小さく、
前記第1パッドと前記第2配線とが重なる領域において、前記第2配線の前記第2方向の幅は、前記第1ビアランドの前記第2幅より小さく、
平面視において、前記第1ビアは、前記第1方向の第3幅と、前記第2方向の第4幅と、を有し、
前記第1ビアの前記第4幅は、前記第3幅より小さく、
前記第1ビアランドの前記第2幅は、前記第1ビアの前記第4幅より大きく、
前記第1ビアランドの前記第1幅は、前記第1ビアの前記第3幅より大きく、
前記複数のパッドは、前記第1信号および前記第2信号と異なる第3信号が伝送される第3パッドを含み、
前記第1配線層に形成された前記複数の導体パターンは、平面視において前記第3パッドと重なる位置に配置され、第3ビアを介して前記第3パッドと電気的に接続される第3ビアランドを含み、
前記複数の第1層配線は、前記第3ビアランドに接続され、前記第1配線と隣り合って前記第1方向に延びる第3配線を含み、
平面視において、
前記第1ビアランドは、前記第2配線と前記第3配線との間にあり、
前記第3配線は、前記第1パッドと重なる、半導体装置。 - 請求項1において、
前記複数のパッドは、前記第1方向に交差する前記第2方向に沿って前記第1パッドの隣に配列され、前記第1信号および前記第2信号と異なる第4信号が伝送される第4パッドを含み、
前記第1配線層に形成された複数の導体パターンは、平面視において前記第4パッドと重なる位置に配置され、第4ビアを介して前記第4パッドと電気的に接続される第4ビアランドを含み、
平面視において、前記第1ビアランドと前記第4ビアランドとの間には、5本以上の前記複数の第1層配線が配置される、半導体装置。
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