JP5355363B2 - 半導体装置内蔵基板及びその製造方法 - Google Patents
半導体装置内蔵基板及びその製造方法 Download PDFInfo
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Description
[第1の実施の形態に係る半導体装置内蔵基板の構造]
始めに、第1の実施の形態に係る半導体装置内蔵基板の構造について説明する。図1は、第1の実施の形態に係る半導体装置内蔵基板の断面図である。図1を参照するに、半導体装置内蔵基板20は、半導体装置10と、配線パターン14と、ソルダーレジスト層16と、外部接続端子17と、絶縁層41とを有する。
続いて、第1の実施の形態に係る半導体装置内蔵基板の製造方法について説明する。図2〜図19は、第1の実施の形態に係る半導体装置内蔵基板の製造工程を例示する図である。図2〜図19において、図1に示す半導体装置内蔵基板20と同一構成部分には同一符号を付し、その説明を省略する場合がある。図2〜図11において、Cはダイシングブレードが半導体基板31を切断する位置(以下、「基板切断位置C」とする)、Aは複数の半導体装置形成領域(以下、「半導体装置形成領域A」とする)、Bは複数の半導体装置形成領域Aを分離する、基板切断位置Cを含むスクライブ領域(以下、「スクライブ領域B」とする)を示している。
[第2の実施の形態に係る半導体装置内蔵基板の構造]
始めに、第2の実施の形態に係る半導体装置内蔵基板の構造について説明する。図20は、第2の実施の形態に係る半導体装置内蔵基板の断面図である。図20に示す半導体装置内蔵基板50において、図1に示す半導体装置内蔵基板20と同一構成部分には同一符号を付し、その説明を省略する場合がある。図20を参照するに、第2の実施の形態に係る半導体装置内蔵基板50は、第1の実施の形態に係る半導体装置内蔵基板20の絶縁層41が絶縁層51に置換された以外は、半導体装置内蔵基板20と同様である。以下、半導体装置内蔵基板20と異なる部分についてのみ説明する。
続いて、第2の実施の形態に係る半導体装置内蔵基板の製造方法について説明する。図21及び図22は、第2の実施の形態に係る半導体装置内蔵基板の製造工程を例示する図である。図21及び図22において、図20に示す半導体装置内蔵基板50と同一構成部分には同一符号を付し、その説明を省略する場合がある。
第3の実施の形態では、第1及び第2の実施の形態の図12〜図14に示す工程を、異なる工程(図23及び図24参照)に変更する例を示す。
第4の実施の形態では、第1の実施の形態に係る半導体装置内蔵基板とは異なる半導体装置内蔵基板の例を示す。
配線パターン14の凹部14Xの底面及び内側面(傾斜面)の一部を露出する開口部16Yを有する。ソルダーレジスト層16の材料は、例えば感光性樹脂組成物である。
第5の実施の形態では、第1の実施の形態に係る半導体装置内蔵基板とは異なる半導体装置内蔵基板の例を示す。
11 半導体チップ
12 接続端子
12A,13A,25A,25B,40A,40B,41A,42A,43A 面
13,41,51 絶縁層
14 配線パターン
14X、41X 凹部
16 ソルダーレジスト層
16X,16Y,16Z 開口部
17,67,77 外部接続端子
20,50,60,70 半導体装置内蔵基板
21,31 半導体基板
22 半導体集積回路
23 電極パッド
24 保護膜
25 板状体
26,27 金属層
40 第1支持体
40X,42X,43X 凸部
42 第2支持体
43 第3支持体
A 半導体装置形成領域
B スクライブ領域
C 基板切断位置
T1〜T7 厚さ
H1 高さ
Claims (12)
- 半導体集積回路に形成された電極パッド上に接続端子が形成され、前記半導体集積回路上に前記接続端子の一部を露出する第1絶縁層が形成された半導体装置と、
前記半導体装置の少なくとも側面部を埋め、前記接続端子の露出部側の面に凹部が形成された第2絶縁層と、
前記第1絶縁層の前記接続端子の露出部側の面、及び前記第2絶縁層の前記凹部を含む領域に形成され、前記第2絶縁層の前記凹部の形状に対応する凹部を有し前記接続端子の露出部と電気的に接続する配線パターンと、
前記第1絶縁層の前記接続端子の露出部側の面、及び前記第2絶縁層の前記凹部を含む領域に、前記第2絶縁層の前記凹部に形成された前記配線パターンの一部のみを露出する開口部が設けられた第3絶縁層と、を有する半導体装置内蔵基板。 - 前記開口部は、前記配線パターンの凹部の底面及び内側面の一部を露出するように前記第3絶縁層に設けられている請求項1記載の半導体装置内蔵基板。
- 前記開口部は、前記配線パターンの凹部の全面を露出するように前記第3絶縁層に設けられている請求項1記載の半導体装置内蔵基板。
- 前記第2絶縁層は、前記半導体装置の側面部及び裏面部を覆うように形成されている請求項1乃至3の何れか一項記載の半導体装置内蔵基板。
- 半導体集積回路に形成された電極パッド上に接続端子を形成する工程と、前記接続端子を覆うように前記半導体集積回路上に第1絶縁層を形成する工程と、前記第1絶縁層上に、前記第1絶縁層と対向する側の面が粗面とされた板状体を配設する工程と、前記板状体の前記粗面を前記第1絶縁層に圧着することにより、前記接続端子の一部を前記第1絶縁層から露出させる工程と、前記板状体を除去する工程と、を含む工程により半導体装置を製造する第1工程と、
一方の面に凸部が設けられた支持体を前記接続端子の露出部側に配置し、前記半導体装置の少なくとも側面部を埋めるように、前記接続端子の露出部側の面に前記凸部によって凹部が設けられた第2絶縁層を形成する第2工程と、
前記第1絶縁層の前記接続端子の露出部側の面、及び前記第2絶縁層の前記凹部を含む領域に、前記第2絶縁層の前記凹部の形状に対応する凹部を有し前記接続端子の露出部と電気的に接続する配線パターンを形成する第3工程と、を有する半導体装置内蔵基板の製造方法。 - 前記第2工程は、一方の面に凸部が設けられた支持体を準備し、前記接続端子の露出部が前記支持体の前記一方の面と対向するように、前記半導体装置を前記支持体の前記一方の面の前記凸部を含まない領域に配置する第2A工程と、
前記支持体の前記一方の面に配置された前記半導体装置の少なくとも側面部を埋めるように、前記支持体の前記一方の面の前記凸部を含む領域に第2絶縁層を形成する第2B工程と、
前記支持体を除去し、前記第2絶縁層に前記凸部に対応する前記凹部を形成する第2C工程と、を有する請求項5記載の半導体装置内蔵基板の製造方法。 - 前記第2工程は、第1支持体を準備し、前記接続端子の露出部が前記第1支持体の一方の面と対向するように、前記半導体装置を前記第1支持体の前記一方の面に配置する第2D工程と、
一方の面に凸部が設けられた第2支持体を準備し、前記半導体装置が配置された前記第1支持体の他方の面を前記第2支持体の前記一方の面と対向させ、前記第2支持体の前記凸部を含まない領域に前記半導体装置が配置されるように、前記第1支持体を前記第2支持体の前記一方の面に吸着保持させ、前記第1支持体の前記一方の面に前記第2支持体の前記凸部の形状に対応する凸部を形成する第2E工程と、
前記第1支持体の前記一方の面に配置された前記半導体装置の少なくとも側面部を埋めるように、前記第1支持体の前記一方の面の前記凸部を含む領域に第2絶縁層を形成する第2F工程と、
前記第1支持体及び前記第2支持体を除去し、前記第2絶縁層に前記第1支持体の前記凸部に対応する前記凹部を形成する第2G工程と、を有する請求項5記載の半導体装置内蔵基板の製造方法。 - 前記第1絶縁層の前記接続端子の露出部側の面、及び前記第2絶縁層の前記凹部を含む領域に、前記第2絶縁層の前記凹部に形成された前記配線パターンの少なくとも一部を露出する開口部が設けられた第3絶縁層を形成する第4工程を更に有する請求項5乃至7の何れか一項記載の半導体装置内蔵基板の製造方法。
- 前記第3絶縁層上に、前記開口部内に露出する前記配線パターンと電気的に接続される外部接続端子を形成する第5工程を更に有する請求項8記載の半導体装置内蔵基板の製造方法。
- 前記第4工程では、前記第2絶縁層の前記凹部に形成された前記配線パターンの一部のみを前記開口部から露出する請求項8又は9記載の半導体装置内蔵基板の製造方法。
- 前記第4工程では、前記第2絶縁層の前記凹部の底面に形成された前記配線パターンのみを前記開口部から露出する請求項10記載の半導体装置内蔵基板の製造方法。
- 前記第2工程において、前記半導体装置の前記側面部及び裏面部を埋めるように、前記第2絶縁層を形成する請求項5乃至11の何れか一項記載の半導体装置内蔵基板の製造方法。
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