JP2007150374A - 半導体装置及びフィルムキャリアテープ並びにこれらの製造方法 - Google Patents
半導体装置及びフィルムキャリアテープ並びにこれらの製造方法 Download PDFInfo
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- JP2007150374A JP2007150374A JP2007068380A JP2007068380A JP2007150374A JP 2007150374 A JP2007150374 A JP 2007150374A JP 2007068380 A JP2007068380 A JP 2007068380A JP 2007068380 A JP2007068380 A JP 2007068380A JP 2007150374 A JP2007150374 A JP 2007150374A
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Abstract
【解決手段】本発明は、配線パターンと樹脂との密着性を向上させる半導体装置であり、凸部(17)を含みパターニングされた配線パターン(16)を有するフィルム片(14)と、凸部(17)に電極(13)が接合される半導体チップ(12)と、凸部(17)以外の領域において配線パターン(16)に設けられる樹脂(19)と、を有し、配線パターン(16)は、樹脂(19)との接触面が粗面をなす。
【選択図】図1
Description
前記配線パターンの粗面加工された面に対して、少なくとも一回の樹脂の配設を行う第2工程と、
を含む。
前記絶縁フィルムに金属膜を形成する工程と、
その後順序不同で、前記金属膜をパターニングして前記配線パターンを形成し、前記金属膜の少なくとも一部を粗面加工する工程と、
を含んでもよい。
前記樹脂は、前記絶縁フィルムと前記半導体チップとの間に設けられてもよい。
前記金属膜は、前記デバイスホール内において、前記絶縁フィルムとの接触面方向に前記凸部が突出するようにエッチングされてもよい。
前記樹脂の配設工程では、前記デバイスホール内で、前記金属膜の前記絶縁フィルム側の面に前記裏止め樹脂が設けられ、前記金属膜は、前記裏止め樹脂の配設面とは反対面からパターニングされ、その後前記裏止め樹脂が除去されてもよい。
前記金属膜は、前記デバイスホール内において、前記絶縁フィルムとの接触面とは反対方向に前記凸部が突出するようにエッチングされてもよい。
前記樹脂の配設工程では、封止用樹脂が、前記金属膜のエッチングされた面とともに前記半導体チップを封止するように設けてもよい。
その後順序不同で、前記金属膜をパターニングして前記配線パターンを形成し、前記金属膜の少なくとも一部を粗面加工する工程と、
を含んでもよい。
前記金属膜は、前記デバイスホール内において、前記絶縁フィルムとの接触面方向に前記凸部が突出するようにエッチングされてもよい。
前記樹脂の配設工程では、前記デバイスホール内で、前記金属膜の前記絶縁フィルム側の面に前記裏止め樹脂が設けられ、前記金属膜は、前記裏止め樹脂の配設面とは反対面からパターニングされ、その後前記裏止め樹脂が除去されてもよい。
前記金属膜は、前記デバイスホール内において、前記絶縁フィルムとの接触面とは反対方向に前記凸部が突出するようにエッチングされてもよい。
前記配線パターンは、前記樹脂との接触面が粗面をなす。
図1は、第1実施形態に係る半導体装置を示す図である。この半導体装置10は、半導体チップ12の電極13に、フィルム片14に形成された配線パターン16の凸部17が接合され、配線パターン16には外部端子18が設けられてなる。また、フィルム片14と半導体チップ12との間には、応力緩和や半導体チップの能動面の保護のための樹脂19が設けられている。
図5A〜図6Cは、第2実施形態に係る半導体装置の製造工程を説明する図である。本実施形態は、TAB技術に本発明を適用したものである。図6Cに示すように、半導体装置30は、半導体チップ32の電極33に、フィルム片34に形成された配線パターン36の凸部37が接合されてなる。また、フィルム片34と半導体チップ32とを封止するために、樹脂39が設けられている。本実施形態でもTAB技術が適用されており、フィルム片34は、図6Bに示すフィルムキャリアテープ40から打ち抜かれて形成されている。
図7は、第3実施形態に係る半導体装置を示す図である。同図に示す半導体装置50は、半導体チップ52の電極53に、フィルム片54に形成された配線パターン56の凸部57が接合されてなる。また、フィルム片54と半導体チップ52とを封止するために、樹脂58が設けられている。
図8は、第4実施形態に係る半導体装置を示す図である。この半導体装置60は、半導体チップ62の電極63に、フィルム片64に形成された配線パターン66の凸部67が接合され、配線パターン66には外部端子68が設けられてなる。また、フィルム片64と半導体チップ62との間には、応力緩和のための樹脂65が注入されている。
上記いずれの実施形態においても、配線パターンに凸部が形成されているが、本発明は、凸部がない場合にも適用することができる。すなわち、例えば、配線パターンがハーフエッチングされない場合であっても、配線パターンを粗面加工することで樹脂との密着性を上げることができる。その場合には、銅箔等の金属膜に粗面加工を行ってから、これを配線パターンの形状にパターニングしてもよい。
Claims (24)
- 絶縁フィルムに、少なくとも一部が粗面加工された配線パターンを形成する第1工程と、
前記配線パターンの粗面加工された面に対して、少なくとも一回の樹脂の配設を行う第2工程と、
を含む半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法において、
前記第1工程は、
前記絶縁フィルムに金属膜を形成する工程と、
その後順序不同で、前記金属膜をパターニングして前記配線パターンを形成し、前記金属膜の少なくとも一部を粗面加工する工程と、
を含む半導体装置の製造方法。 - 請求項2記載の半導体装置の製造方法において、
前記第1工程で、前記金属膜の所定部が凸部となるように、前記凸部を除く領域の前記金属膜をエッチングし、その後、前記金属膜のエッチングされた面を粗面加工する半導体装置の製造方法。 - 請求項3記載の半導体装置の製造方法において、
前記金属膜は、前記絶縁フィルムとの接触面とは反対方向に前記凸部が突出するようにエッチングされる半導体装置の製造方法。 - 請求項4記載の半導体装置の製造方法において、
パターニング、エッチング及び粗面加工後に、前記金属膜を半導体チップの電極を有する面に対向させて、前記絶縁フィルムを配置し、前記凸部と前記電極とを位置合わせして接合する工程を含み、
前記樹脂は、前記絶縁フィルムと前記半導体チップとの間に設けられる半導体装置の製造方法。 - 請求項3記載の半導体装置の製造方法において、
前記絶縁フィルムは、デバイスホールを有し、前記金属膜は、前記デバイスホール内に、はみだすように形成され、
前記金属膜は、前記デバイスホール内において、前記絶縁フィルムとの接触面方向に前記凸部が突出するようにエッチングされる半導体装置の製造方法。 - 請求項6記載の半導体装置の製造方法において、
前記エッチング及び前記粗面加工の工程後であって、前記パターニングの工程前に、前記樹脂の配設工程が行われ、
前記樹脂の配設工程では、前記デバイスホール内で、前記金属膜の前記絶縁フィルム側の面に前記裏止め樹脂が設けられ、前記金属膜は、前記裏止め樹脂の配設面とは反対面からパターニングされ、その後前記裏止め樹脂が除去される半導体装置の製造方法。 - 請求項3記載の半導体装置の製造方法において、
前記絶縁フィルムは、デバイスホールを有し、前記金属膜は、前記デバイスホール内に、はみだすように形成され、
前記金属膜は、前記デバイスホール内において、前記絶縁フィルムとの接触面とは反対方向に前記凸部が突出するようにエッチングされる半導体装置の製造方法。 - 請求項6から請求項8のいずれかに記載の半導体装置の製造方法において、
パターニング、エッチング及び粗面加工後に、前記金属膜を半導体チップの電極を有する面に対向させて、前記絶縁フィルムを配置し、前記凸部と前記電極とを位置合わせして接合する工程を含み、
前記樹脂の配設工程では、封止用樹脂が、前記金属膜のエッチングされた面とともに前記半導体チップを封止するように設けられる半導体装置の製造方法。 - 請求項3から請求項8のいずれかに記載の半導体装置の製造方法において、
前記粗面加工は、表面を荒らす化学研磨工程である半導体装置の製造方法。 - 請求項3から請求項8のいずれかに記載の半導体装置の製造方法において、
前記金属膜は、前記所定部にレジストが設けられてエッチングされて前記凸部が形成され、前記レジストの除去前に、前記粗面加工が行われる半導体装置の製造方法。 - 絶縁フィルムに、少なくとも一部が粗面加工された配線パターンを形成する工程を含むフィルムキャリアテープの製造方法。
- 請求項12記載のフィルムキャリアテープの製造方法において、
前記絶縁フィルムに金属膜を形成する工程と、
その後順序不同で、前記金属膜をパターニングして前記配線パターンを形成し、前記金属膜の少なくとも一部を粗面加工する工程と、
を含むフィルムキャリアテープの製造方法。 - 請求項13記載のフィルムキャリアテープの製造方法において、
前記金属膜の所定部が凸部となるように、前記凸部を除く領域の前記金属膜をエッチングし、その後、前記金属膜のエッチングされた面を粗面加工するフィルムキャリアテープの製造方法。 - 請求項14記載のフィルムキャリアテープの製造方法において、
前記金属膜は、前記絶縁フィルムとの接触面とは反対方向に前記凸部が突出するようにエッチングされるフィルムキャリアテープの製造方法。 - 請求項14記載のフィルムキャリアテープの製造方法において、
前記絶縁フィルムは、デバイスホールを有し、前記金属膜は、前記デバイスホール内に、はみだすように形成され、
前記金属膜は、前記デバイスホール内において、前記絶縁フィルムとの接触面方向に前記凸部が突出するようにエッチングされるフィルムキャリアテープの製造方法。 - 請求項16記載のフィルムキャリアテープの製造方法において、
前記エッチング及び前記粗面加工の工程後であって、前記パターニングの工程前に、前記樹脂の配設工程が行われ、
前記樹脂の配設工程では、前記デバイスホール内で、前記金属膜の前記絶縁フィルム側の面に前記裏止め樹脂が設けられ、前記金属膜は、前記裏止め樹脂の配設面とは反対面からパターニングされ、その後前記裏止め樹脂が除去されるフィルムキャリアテープの製造方法。 - 請求項14記載のフィルムキャリアテープの製造方法において、
前記絶縁フィルムは、デバイスホールを有し、前記金属膜は、前記デバイスホール内に、はみだすように形成され、
前記金属膜は、前記デバイスホール内において、前記絶縁フィルムとの接触面とは反対方向に前記凸部が突出するようにエッチングされるフィルムキャリアテープの製造方法。 - 請求項14から請求項18のいずれかに記載のフィルムキャリアテープの製造方法において、
前記粗面加工は、表面を荒らす化学研磨工程であるフィルムキャリアテープの製造方法。 - 請求項14から請求項18のいずれかに記載のフィルムキャリアテープの製造方法において、
前記金属膜は、前記所定部にレジストが設けられてエッチングされ、前記レジストの除去前に、前記表面を荒らす工程が行われるフィルムキャリアテープの製造方法。 - 配線パターンを有する絶縁フィルムと、前記配線パターンに電極が接合される半導体チップと、前記配線パターンに設けられる樹脂と、を有し、
前記配線パターンは、前記樹脂との接触面が粗面をなす半導体装置。 - 請求項21記載の半導体装置において、
前記配線パターンは凸部を含み、前記凸部に前記電極が接合され、前記凸部以外の領域において前記樹脂は前記配線パターンに設けられる半導体装置。 - 絶縁フィルムと、粗面加工された配線パターンと、を有するフィルムキャリアテープ。
- 請求項23記載のフィルムキャリアテープにおいて、
前記配線パターンは凸部を含み、前記配線パターンは前記凸部の突出する側の面において粗面をなすフィルムキャリアテープ。
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Also Published As
Publication number | Publication date |
---|---|
US6627994B2 (en) | 2003-09-30 |
KR20000010953A (ko) | 2000-02-25 |
AU6418998A (en) | 1998-10-20 |
JP3968788B2 (ja) | 2007-08-29 |
US20010040291A1 (en) | 2001-11-15 |
US6316288B1 (en) | 2001-11-13 |
CN1182574C (zh) | 2004-12-29 |
HK1020391A1 (en) | 2000-04-14 |
KR100426883B1 (ko) | 2004-06-30 |
CN1220774A (zh) | 1999-06-23 |
TW400592B (en) | 2000-08-01 |
WO1998043289A1 (en) | 1998-10-01 |
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