JP2022102371A - 半導体装置及びその製造方法 - Google Patents
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Abstract
Description
[半導体装置の構造]
図1は、第1実施形態に係る半導体装置を例示する断面図である。図1を参照すると、第1実施形態に係る半導体装置1は、基板10と、半導体チップ積層体30と、半導体チップ40と、基板61と、無機絶縁層71等と、垂直配線81a等と、水平配線層91等とを有する。
次に、第1実施形態に係る半導体装置の製造工程について説明をする。図3~図14は、第1実施形態に係る半導体装置の製造工程を例示する図である。
第1実施形態の変形例1では、基板に形成された凹部に半導体チップ積層体及び半導体チップを固着する例を示す。なお、第1実施形態の変形例1において、既に説明した実施形態と同一構成部品についての説明は省略する場合がある。
10、61、61A 基板
21、22 接着層
30 半導体チップ積層体
301、302、303、304、305、40 半導体チップ
31、41 本体
32、42 半導体集積回路
33、43、94 電極パッド
36、44、62 絶縁層
37 貫通電極
50 樹脂層
61x 凹部
71、72、73、74 無機絶縁層
71x、71y、74x ビアホール
81a、81b、82a、82b、83a、83b、84b 垂直配線
91、92、93 水平配線層
Claims (13)
- 複数の製品領域が画定された第1基板を準備し、前記第1基板の一方の面の各々の前記製品領域に、半導体チップ積層体及び半導体チップを、各々の電極パッド形成側を前記第1基板側に向けて固着する工程と、
前記第1基板の前記一方の面の反対側である他方の面側を薄化する工程と、
前記第1基板の他方の面に第1無機絶縁層を形成する工程と、
前記第1無機絶縁層及び前記第1基板を貫通し、前記半導体チップ積層体の電極パッドと直接電気的に接続する第1垂直配線を形成すると共に、前記第1無機絶縁層及び前記第1基板を貫通し、前記半導体チップの電極パッドと直接電気的に接続する第2垂直配線を形成する工程と、
前記第1無機絶縁層の前記第1基板とは反対側の面に、前記第1垂直配線の一部と前記第2垂直配線の一部とを直接電気的に接続する第1水平配線を形成する工程と、を有する、半導体装置の製造方法。 - 前記第1無機絶縁層の前記第1基板とは反対側の面に、前記第1水平配線を被覆する第2無機絶縁層を形成する工程と、
前記第2無機絶縁層を貫通し、前記第1垂直配線の一部と直接電気的に接続する第3垂直配線を形成すると共に、前記第2無機絶縁層を貫通し、前記第2垂直配線の一部と直接電気的に接続する第4垂直配線を形成する工程と、
前記第2無機絶縁層の前記第1無機絶縁層とは反対側の面に、前記第3垂直配線の一部と前記第4垂直配線の一部とを直接電気的に接続する第2水平配線を形成する工程と、を有する、請求項1に記載の半導体装置の製造方法。 - 前記第1基板の一方の面に、各々の前記製品領域に固着された前記半導体チップ積層体及び前記半導体チップの少なくとも側面を被覆する樹脂層を形成する工程を有する、請求項1又は2に記載の半導体装置の製造方法。
- 各々の前記製品領域に固着された前記半導体チップ積層体及び前記半導体チップの背面側を薄化する工程を有する、請求項1乃至3の何れか一項に記載の半導体装置の製造方法。
- 前記第1基板の各々の前記製品領域に凹部が形成され、
前記各々の電極パッド形成側を前記第1基板側に向けて固着する工程では、
各々の前記凹部に、前記半導体チップ積層体及び前記半導体チップを、各々の電極パッド形成側を前記凹部の底面側に向けて固着する、請求項1乃至4の何れか一項に記載の半導体装置の製造方法。 - 前記第1基板の他方の面側を薄化する工程よりも前に、
各々の前記製品領域に固着された前記半導体チップ積層体及び前記半導体チップの、各々の前記電極パッド形成側の反対側である背面側に、第2基板を固着する工程を有する、請求項1乃至5の何れか一項に記載の半導体装置の製造方法。 - 前記第1水平配線を形成する工程よりも後に、
前記第2基板の少なくとも一部を除去する工程を有する、請求項6に記載の半導体装置の製造方法。 - 前記半導体チップ積層体及び前記半導体チップを前記第1基板の一方の面に固着する工程において、前記半導体チップに代えて、第2半導体チップ積層体を、電極パッド形成側を前記第1基板側に向けて固着する、請求項1乃至7の何れか一項に記載の半導体装置の製造方法。
- 第1基板と、
各々の電極パッド形成側を前記第1基板側に向けて、前記第1基板の一方の面に固着された、半導体チップ積層体及び半導体チップと、
前記第1基板の一方の面の反対側である他方の面に設けられた第1無機絶縁層と、
前記第1無機絶縁層及び前記第1基板を貫通し、前記半導体チップ積層体の電極パッドと直接電気的に接続する第1垂直配線と、
前記第1無機絶縁層及び前記第1基板を貫通し、前記半導体チップの電極パッドと直接電気的に接続する第2垂直配線と、
前記第1無機絶縁層の前記第1基板とは反対側の面に設けられ、前記第1垂直配線の一部と前記第2垂直配線の一部とを直接電気的に接続する第1水平配線と、を有する、半導体装置。 - 前記第1無機絶縁層の前記第1基板とは反対側の面に設けられ、前記第1水平配線を被覆する第2無機絶縁層と、
前記第2無機絶縁層を貫通し、前記第1水平配線と未接続の前記第1垂直配線の一部と直接電気的に接続する第3垂直配線と、
前記第2無機絶縁層を貫通し、前記第1水平配線と未接続の前記第2垂直配線の一部と直接電気的に接続する第4垂直配線と、
前記第2無機絶縁層の前記第1無機絶縁層とは反対側の面に設けられ、前記第3垂直配線の一部と前記第4垂直配線の一部とを直接電気的に接続する第2水平配線と、を有する、請求項9に記載の半導体装置。 - 前記第1基板の一方の面に設けられ、前記半導体チップ積層体及び前記半導体チップの側面を被覆する樹脂層を有する、請求項9又は10に記載の半導体装置。
- 前記第1基板の一方の面には凹部が設けられ、
前記半導体チップ積層体及び前記半導体チップは、各々の電極パッド形成側を前記凹部の底面側に向けて、前記凹部内に固着されている、請求項9乃至11の何れか一項に記載の半導体装置。 - 前記半導体チップに代えて、第2半導体チップ積層体が、電極パッド形成側を前記第1基板側に向けて固着されている、請求項9乃至12の何れか一項に記載の半導体装置。
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