JP5598787B2 - 積層型半導体装置の製造方法 - Google Patents
積層型半導体装置の製造方法 Download PDFInfo
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- JP5598787B2 JP5598787B2 JP2006113529A JP2006113529A JP5598787B2 JP 5598787 B2 JP5598787 B2 JP 5598787B2 JP 2006113529 A JP2006113529 A JP 2006113529A JP 2006113529 A JP2006113529 A JP 2006113529A JP 5598787 B2 JP5598787 B2 JP 5598787B2
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Description
本発明の他の目的は、小型の積層型半導体装置を提供することにある。
本発明の前記ならびにそのほかの目的と新規な特徴は、本明細書の記述および添付図面からあきらかになるであろう。
(1)下段の半導体装置10においては、封止体12を設けた配線基板11の上面(第1の面11a)の一部の配線15は封止体12から外れて露出し、この露出した配線15に電気的に接続される連結用配線31が封止体12の上面29上にまで延在して位置している。そして、封止体12の上面29上の各連結用配線部分(連結用接続パッド32)に、上段の半導体装置40の下面(配線基板41の第2の面41b)の電極(外部電極端子)43が電気的に接続される構造となっている。下段の半導体装置10の封止体12内に複数の半導体チップ(例えば、第1の半導体チップ20及び第2の半導体チップ26)を重ねて搭載すると必然的に封止体12の厚さ(高さ)が厚く(高く)なる。しかし、上段の半導体装置40の電極(外部電極端子)43の厚さ(高さ)は、下段の半導体装置10の封止体12の上面29に設けた連結用配線部分(連結用接続パッド32)に重ねて接続する構造であることから、下段の半導体装置10の封止体12の厚さに左右されることなく薄くできる。この結果、積層型半導体装置1の薄型化が達成できる。上段の半導体装置40の電極(外部電極端子)43は、例えば、半田ボール等によって形成するバンプ電極であるが、この半田ボールも、200〜300μm直径程度にすることができるため、積層型半導体装置1の薄型化が可能になる。
Claims (6)
- 積層型半導体装置を製造する方法であって、
(a)第1の面及びこの第1の面の反対面となる第2の面を有し、前記第1の面に複数の電極を有する半導体チップを準備する工程、
(b)第1の面及びこの第1の面の反対面となる第2の面に形成された所定パターンの配線であって、前記第1の面と前記第2の面との間を電気的に接続する配線を含む配線と、前記第1の面に形成された複数の接続パッドと、前記第2の面に形成された複数の端子形成パッドとを有する製品形成部が縦横に整列形成された配線母基板を準備する工程、
(c)前記配線母基板の前記各製品形成部の前記第1の面側に前記半導体チップを搭載し、かつ前記半導体チップの前記各電極を接続手段を介して前記各接続パッドに電気的に接続する工程、
(d)前記配線母基板の前記各製品形成部の前記第1の面に、前記第1の面上の前記配線の一部を露出させたままとし、前記半導体チップ及び前記接続手段を覆い、上面と該上面に連なり前記製品形成部の前記第1の面に至る側面とを有する絶縁性樹脂からなる封止体を形成する工程、
(e)前記封止体から露出している、前記各製品形成部の前記第1の面上の所定の前記配線の一部に接続された一端部と、前記封止体の前記上面に形成された他の一端部と、前記封止体上に形成され、前記一端部と前記他の一端部の間を接続する中間部とを有し、少なくとも前記他の一端部の側面が前記封止体に埋め込まれている連結用配線を複数形成する工程、
(f)前記配線母基板の前記各製品形成部の前記第2の面の前記端子形成パッドに外部電極端子を形成する工程、
(g)前記配線母基板を前記各製品形成部の境界線で切断して個片化する工程、
によって第1の半導体装置を製造し、
前記第1の半導体装置に第2の半導体装置を積層し、前記第1の半導体装置の前記連結用配線の前記他の一端部と前記第2の半導体装置が備える電極とを電気的に接続することを特徴とする積層型半導体装置の製造方法。 - 前記工程(d)の前記封止体の形成工程では、
前記絶縁性樹脂が充填されるキャビティの壁面に前記連結用配線に対応する突条が設けられたモールド金型を用いて前記封止体を形成して、前記封止体の前記側面及び前記上面に選択的に溝を形成し、
前記工程(e)の連結用配線の形成工程では、
前記封止体の表面に設けられた前記溝に金属粒子を含むインクを充填し、
前記インクを硬化処理することによって、前記連結用配線を形成することを特徴とする請求項1に記載の積層型半導体装置の製造方法。 - 前記工程(c)の前記半導体チップの搭載工程では、
(1)第1の面及びその反対面となる第2の面を有し、前記第1の面にフリップ・チップ接続用の電極を有する第1の半導体チップと、第1の面及びその反対面となる第2の面を有し、前記第1の面にワイヤ接続用の電極を有する第2の半導体チップを準備し、
(2)前記配線母基板の前記各製品形成部の前記接続パッドに、フリップ・チップ接続用の前記電極を介して前記第1の半導体チップをフリップ・チップ接続し、
(3)前記第2の半導体チップをその第2の面を介して前記第1の半導体チップの前記第2の面に絶縁性接着剤で接続し、
(4)前記第2の半導体チップのワイヤ接続用の前記電極と前記第1の半導体チップから外れた位置にある前記接続パッドを導電性のワイヤで接続することを特徴とする請求項1に記載の積層型半導体装置の製造方法。 - 前記工程(c)の前記半導体チップの搭載工程では、
(1)第1の面及びその反対面となる第2の面を有し、前記第1の面の周縁にワイヤ接続用の電極を有する第1の半導体チップと、第1の面及びその反対面となる第2の面を有し、前記第1の面にワイヤ接続用の電極を有しかつ前記第1の半導体チップに重ねたときに前記第1の半導体チップの前記電極が露出する大きさである第2の半導体チップを準備し、
(2)前記配線母基板の前記各製品形成部の前記第1の面に、前記第1の半導体チップをその第2の面を介して絶縁性接着剤で接続し、
(3)前記第1の半導体チップのワイヤ接続用の前記電極を露出させる状態で前記第2の半導体チップをその第2の面を介して前記第1の半導体チップの第1の面に絶縁性接着剤で接続し、
(4)前記第1及び第2の半導体チップのワイヤ接続用の前記各電極と前記各接続パッドを導電性のワイヤで接続することを特徴とする請求項1に記載の積層型半導体装置の製造方法。 - 積層型半導体装置を製造する方法であって、
(a)第1の面及びこの第1の面の反対面となる第2の面を有し、前記第1の面に複数の電極を有する半導体チップを準備する工程、
(b)第1の面及びこの第1の面の反対面となる第2の面に形成された所定パターンの配線であって、前記第1及び第2の面との間を電気的に接続する配線を含む配線と、前記第1の面に形成された複数の接続パッドと、前記第2の面に形成された複数の端子形成パッドとを有する製品形成部が縦横に整列形成された配線母基板を準備する工程、
(c)前記配線母基板の前記各製品形成部の前記第1の面側に前記半導体チップを搭載し、かつ前記半導体チップの前記各電極を接続手段を介して前記各接続パッドに電気的に接続する工程、
(d)前記配線母基板の前記各製品形成部の前記第1の面に、前記第1の面上の前記配線の一部を露出させたままとし、前記半導体チップ及び前記接続手段を覆い、上面と前記上面に連なり前記製品形成部の前記第1の面に至る側面とを有する絶縁性樹脂からなる封止体を形成する工程、
(e)前記封止体から露出している、前記各製品形成部の前記第1の面上の所定の前記配線の一部に接続された一端部と、前記封止体の前記上面に形成された他の一端部と、前記封止体上に形成され、前記一端部と前記他の一端部の間を接続する中間部とを有し、少なくとも前記他の一端部の側面が前記封止体に埋め込まれている連結用配線を複数形成する工程、
(f)前記配線母基板の前記各製品形成部の前記第1の面側であって、前記封止体の前記側面から前記製品形成部の外周縁に至る領域に、前記連結用配線を覆う絶縁性樹脂からなる保護層を形成する工程、
(g)前記配線母基板の前記各製品形成部の前記第2の面の前記端子形成パッドに外部電極端子を形成する工程、
(h)前記配線母基板を前記各製品形成部の境界線で切断して個片化する工程、
によって第1の半導体装置を製造し、
前記第1の半導体装置に第2の半導体装置を積層し、前記第1の半導体装置の前記連結用配線の前記他の一端部と前記第2の半導体装置が備える電極とを電気的に接続することを特徴とする積層型半導体装置の製造方法。 - 前記工程(d)の前記封止体の形成工程では、
前記絶縁性樹脂が充填されるキャビティの壁面に前記連結用配線に対応する突条が設けられたモールド金型を用いて前記封止体を形成して、前記封止体の前記側面及び前記上面に選択的に溝を形成し、
前記工程(e)の連結用配線の形成工程では、
前記封止体の表面に設けられた前記溝に金属粒子を含むインクを充填し、
前記インクを硬化処理することによって、前記連結用配線を形成することを特徴とする請求項5に記載の積層型半導体装置の製造方法。
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US9252125B2 (en) | 2016-02-02 |
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US20110001235A1 (en) | 2011-01-06 |
US20130001755A1 (en) | 2013-01-03 |
US7808093B2 (en) | 2010-10-05 |
US20070241437A1 (en) | 2007-10-18 |
TWI352420B (en) | 2011-11-11 |
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