JP5732239B2 - 熱圧着ヘッド、熱圧着装置、実装方法 - Google Patents
熱圧着ヘッド、熱圧着装置、実装方法 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies
- H01L24/75—Apparatus for connecting with bump connectors or layer connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
- H01L2224/838—Bonding techniques
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- H01L2224/83851—Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester being an anisotropic conductive adhesive
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
- H01L2224/838—Bonding techniques
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- H01L2224/83855—Hardening the adhesive by curing, i.e. thermosetting
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- Power Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
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Description
先ず、熱圧着ヘッド1を用いて接合される圧着部品及び被圧着部品について説明する。圧着部品は、例えばフレキシブル基板10である。また、被圧着部品は、例えばリジットの配線基板11である。
次いで、フレキシブル基板10を配線基板11に接着させる熱圧着ヘッド1について説明する。熱圧着ヘッド1は、図1(a)(b)に示すように、圧着部品及び被圧着部品の比較的高圧で押圧可能な部位を押圧する押圧面2と、圧着部品及び被圧着部品の比較的低圧で押圧する必要がある部位に応じて形成される凹部3とを有する。熱圧着ヘッド1は、凹部3内に、緩衝材20を介して圧着部品及び被圧着部品の比較的低圧で押圧する必要がある部位を押圧する突起部4が立設されている。
熱圧着ヘッド1とフレキシブル基板10との間に介在される緩衝材20は、熱圧着ヘッド1の加熱温度に対する耐熱性、熱圧着ヘッド1の熱を異方導電性接着フィルム17まで効率よく伝達できる伝熱性、及び熱圧着ヘッド1加圧によって凹部3内において変形自在な材料によって形成される。塑性変形可能な材料としては、例えばポリテトラフルオロエチレンが挙げられ、弾性変形可能な材料としては、例えばシリコンラバー等が挙げられる。ただし、ポリイミドなどの変形が極端に少ない材料では効果が出にくい。
異方導電性接着フィルム17は、図4に示すように、膜形成樹脂、熱硬化性樹脂、潜在性硬化剤、シランカップリング剤等を含有する通常のバインダ(接着剤)23に導電性粒子24が分散されたものである。異方導電性接着フィルム17は、熱圧着ヘッド1によって熱加圧されることによりバインダ23が硬化するとともに、接続電極13と電極端子19との間に導電性粒子24が挟持され、これにより両電極の電気的、機械的な接続を図る。
次いで、熱圧着ヘッド1を用いてフレキシブル基板10を配線基板11上に実装する工程について説明する。先ず、配線基板11を実装装置の所定の位置に固定する。配線基板11は、予め実装面11aに電子部品12が実装されるとともに、フレキシブル基板10との導通接続を図る接続電極13が設けられている。また、配線基板11は、裏面11bに、撮像素子15が実装されるとともに、接続電極13の形成領域の裏側に保護ケース16が取り付けられている。
Claims (7)
- 緩衝材を介して圧着部品を熱圧着することにより、上記圧着部品を熱硬化性接着材を介して、電子部品が実装されている部位と上記電子部品が実装されていない部位を含む接合領域に接合させる熱圧着ヘッドにおいて、
上記圧着部品を上記接合領域に電気的に接続し、上記圧着部品及び上記接合領域の上記電子部品が実装されていない部位を上記緩衝材を介して押圧する押圧面と、
上記圧着部品及び上記接合領域の上記電子部品が実装されている部位に応じて設けられた凹部と、
上記凹部内に、該凹部の深さよりも低い高さに立設され、上記緩衝材を介して上記圧着部品及び上記電子部品を押圧する突起部とを有する熱圧着ヘッド。 - 上記圧着部品及び上記接合領域の上記電子部品が実装されている部位は、上記圧着部品及び上記接合領域の上記電子部品が実装されていない部位よりも突出し、
上記電子部品が実装されている部位の高さh1の上記電子部品が実装されていない部位の高さh2からの突出高さ(h1−h2)と、上記押圧面から上記突起部までの深さd2とが、d2≧(h1−h2)を満たす請求項1記載の熱圧着ヘッド。 - 上記押圧面から上記凹部の底面までの高さd1から上記押圧面から上記突起部までの深さd2を引いた上記突起部の高さ(d1−d2)は、上記緩衝材の厚みtに対して(d1−d2)≧tを満たす請求項1又は請求項2に記載の熱圧着ヘッド。
- 上記突起部は、複数形成されている請求項1記載の熱圧着ヘッド。
- 上記複数の突起部は、上記凹部の略中心部にかけて低く形成されている請求項4記載の熱圧着ヘッド。
- 緩衝材を介して圧着部品を熱圧着することにより、上記圧着部品を熱硬化性接着材を介して、電子部品が実装されている部位と上記電子部品が実装されていない部位を含む接合領域に接合させる熱圧着ヘッドと、上記熱圧着ヘッドを昇降駆動する昇降機構と、上記熱圧着ヘッドを加熱する加熱機構とを備えた熱圧着装置において、
上記熱圧着ヘッドは、
上記圧着部品を上記接合領域に電気的に接続し、上記圧着部品及び上記接合領域の上記電子部品が実装されていない部位を上記緩衝材を介して押圧する押圧面と、
上記圧着部品及び上記接合領域の上記電子部品が実装されている部位に応じて設けられた凹部と、
上記凹部内に、該凹部の深さよりも低い高さに立設され、上記緩衝材を介して上記圧着部品を押圧する突起部とを有する熱圧着装置。 - 緩衝材を介して圧着部品を熱圧着することにより、熱硬化性接着材による上記圧着部品の、電子部品が実装されている部位と上記電子部品が実装されていない部位を含む接合領域への接合を行う実装方法において、
被圧着部品の被圧着面に上記熱硬化性接着材を介して圧着部品を配置し、
上記圧着部品を電気的に接続し、上記圧着部品及び上記接合領域の上記電子部品が実装されていない部位を上記緩衝材を介して押圧する押圧面と、上記圧着部品及び上記接合領域の上記電子部品が実装されている部位に応じて設けられた凹部と、上記凹部内に立設され、上記緩衝材を介して上記圧着部品を押圧する突起部とを有する熱圧着ヘッドを下降し、上記緩衝材を介して上記圧着部品を熱加圧する実装方法。
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