JP2020053484A - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
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- JP2020053484A JP2020053484A JP2018179285A JP2018179285A JP2020053484A JP 2020053484 A JP2020053484 A JP 2020053484A JP 2018179285 A JP2018179285 A JP 2018179285A JP 2018179285 A JP2018179285 A JP 2018179285A JP 2020053484 A JP2020053484 A JP 2020053484A
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- layer
- semiconductor device
- insulating layer
- electrode
- conductive member
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Abstract
Description
図1は、本実施形態に係る半導体装置を示す断面図である。
図2は、図1の領域Aを示す一部拡大断面図である。
図3は、図1の領域Bを示す一部拡大断面図である。
図4は、バンプが接合された本実施形態に係る半導体装置を示す断面図である。
図5は、図4の領域Cを示す一部拡大断面図である。
図6(a)〜(d)、図7(a)〜(d)、図8(a)〜(d)、図9、図10、図11、図12(a)及び(b)、図13(a)及び(b)は、本実施形態に係る半導体装置の製造方法を示す断面図である。
図12(b)は図12(a)の領域Dを示す一部拡大断面図である。
図13(b)は図13(a)の領域Eを示す一部拡大断面図である。
本実施形態においては、図6(a)〜図10に示す工程において、支持基板100上に再配線層10、半導体チップ30、樹脂部材36等からなる構造体を形成した後、図11に示す工程において、支持基板100を除去している。これにより、再配線層10を介して半導体チップ30をバンプ46に接続することができる。この結果、プリント基板を用いる場合と比較して、半導体装置1の低背化を図ることができる。
図14は、比較例に係る半導体装置を示す断面図である。
図14は、図1の領域Bに相当する部分を示す。
10:再配線層
11、11a、11c:絶縁層
11b、11d:ビアホール
11f:上面
11r:下面
12:下部導電部材
13:上部導電部材
14:ビア
15:配線
16:ビア
17:パッド
18:電極
18a:下部
18b:上部
19:電極
21:チタン層
22:銅層
23:チタン層
24:銅層
25:金層
30:半導体チップ
31、32:マイクロバンプ
36:樹脂部材
41:制御用チップ
42:マイクロバンプ
44、45:金属間化合物層
46:バンプ
100:支持基板
101:剥離層
102:チタン層
103:銅層
104:チタン層
104a:開口部
105:シード層
106:レジストパターン
106a:開口部
108:レジストパターン
108a:開口部
109:金層
111:半導体装置
118:電極
146:バンプ
146a:くびれ
Claims (10)
- 絶縁層と、
前記絶縁層内に設けられた導電部材と、
前記絶縁層の第1面上に配置され、前記導電部材に接続されたチップと、
前記導電部材に、抵抗率が前記導電部材の抵抗率よりも高いバリア層を介して接続され、少なくとも一部が前記絶縁層の第2面から突出した電極と、
を備えた半導体装置。 - 前記電極に接合されたバンプをさらに備えた請求項1記載の半導体装置。
- 前記バンプは前記電極の側面を覆っている請求項2記載の半導体装置。
- 前記電極はニッケルを含む請求項1〜3のいずれか1つに記載の半導体装置。
- 前記バリア層は前記絶縁層と前記導電部材との間に設けられた請求項1〜4のいずれか1つに記載の半導体装置。
- 前記導電部材は、
前記チップに接続された第1ビアと、
前記電極に接続された第2ビアと、
前記第1ビアと前記第2ビアとの間に接続された配線と、
を有し、
前記バリア層は、少なくとも、前記第2ビアの下面上及び側面上、並びに、前記配線の下面上に配置され、前記第2ビアは前記バリア層を介して前記電極に接続された請求項1〜5のいずれか1つに記載の半導体装置。 - 支持基板上に、剥離層、第1バリア層、導電層及び第2バリア層を形成する工程と、
前記第2バリア層上に、第1開口部が形成された第1絶縁層を形成する工程と、
前記第1絶縁層をマスクとしてエッチングを施すことにより、前記第2バリア層に前記第1開口部に連通された第2開口部を形成する工程と、
前記第2開口部内及び前記第1開口部の下部内に電極を形成する工程と、
前記第1開口部の上部の内面上に、第3バリア層を形成する工程と、
前記第1開口部の上部内に第1ビアを形成すると共に、前記第1絶縁層上に、抵抗率が前記第3バリア層の抵抗率よりも低い配線を形成する工程と、
前記配線上に、第3開口部が形成された第2絶縁層を形成する工程と、
前記第3開口部内に、前記配線に接続される第2ビアを形成する工程と、
前記第2ビアにチップを接続する工程と、
前記剥離層を除去することにより、前記支持基板を除去する工程と、
前記第1バリア層、前記導電層及び前記第2バリア層を除去する工程と、
を備えた半導体装置の製造方法。 - 前記電極にバンプを接合する工程をさらに備えた請求項7記載の半導体装置の製造方法。
- 前記電極を形成する工程は、前記導電層を介して電解めっきを施す工程を有した請求項7または8に記載の半導体装置の製造方法。
- 前記第1ビア及び前記配線を形成する工程は、前記導電層を介して電解めっきを施す工程を有した請求項7〜9のいずれか1つに記載の半導体装置の製造方法。
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US16/354,501 US11227826B2 (en) | 2018-09-25 | 2019-03-15 | Semiconductor device having chip stacked and molded |
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