JP2004158827A - 半導体ウエハ、半導体装置及びその製造方法、回路基板並びに電子機器 - Google Patents
半導体ウエハ、半導体装置及びその製造方法、回路基板並びに電子機器 Download PDFInfo
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Abstract
【解決手段】 半導体ウエハ10は、配線の端部であるパッド18と電気的に接続する再配線層22と、再配線層22の上方に設けられた第1の樹脂層30と、第1の樹脂層30の上方に設けられてその側面を覆う第2の樹脂層28と、パッド22の上方を避けるように再配線層22に電気的に接続して設けられた外部端子26と、を含む。
【選択図】 図1
Description
前記半導体本体の上方に設けられ、前記パッドと電気的に接続し、前記パッドの上方に位置する第1の部分と前記第1の部分を除く第2の部分とを含む再配線層と、
前記再配線層の上方に設けられた第1の樹脂層と、
前記第1の樹脂層の上方に設けられ、前記第1の樹脂層の側面を覆う第2の樹脂層と、
前記再配線層の前記第2の部分の上方に、前記再配線層に電気的に接続して設けられた外部端子と、
を含むことを特徴とする。本発明によれば、第2の樹脂層が第1の樹脂層の側面を覆うので、第1及び第2の樹脂層間から水分が進入することがなく、第1の樹脂層の剥離が生じにくくなっており、信頼性の低下を防ぐことができる。
(2)この半導体ウエハにおいて、
前記第1の樹脂層は、前記外部端子を設ける領域を除いて前記再配線層を覆うように形成され、
前記第2の樹脂層は、前記外部端子の少なくとも根本を覆うように形成されていてもよい。
(3)この半導体ウエハにおいて、
前記再配線層の下に、絶縁層をさらに有してもよい。
(4)この半導体ウエハにおいて、
前記半導体ウエハは、複数の第1の領域と、それぞれの前記第1の領域に囲まれた複数の第2の領域とを有し、
前記第1の樹脂層及び前記第2の樹脂層は、前記第2の領域内にのみ設けられていてもよい。
(5)この半導体ウエハにおいて、
前記第2の樹脂層のうち前記第1の樹脂層の側面を覆う部分は、前記第2の領域の外周端部の上方に設けられていてもよい。
(6)本発明に係る半導体装置は、集積回路と、前記集積回路に電気的に接続する配線と、を含み、前記配線の端部であるパッドを表面に含む半導体本体と、
前記半導体本体の上方に設けられ、前記パッドと電気的に接続し、前記パッドの上方に位置する第1の部分と前記第1の部分を除く第2の部分とを含む再配線層と、
前記再配線層の上方に設けられた第1の樹脂層と、
前記第1の樹脂層の上方に設けられ、前記第1の樹脂層の側面を覆う第2の樹脂層と、
前記再配線層の前記第2の部分の上方に、前記再配線層に電気的に接続して設けられた外部端子と、
を備えることを特徴とする。本発明によれば、第2の樹脂層が第1の樹脂層の側面を覆うので、第1及び第2の樹脂層間から水分が進入することがなく、第1の樹脂層の剥離が生じにくくなっており、信頼性の低下を防ぐことができる。
(7)この半導体装置において、
前記第1の樹脂層は、前記外部端子を設ける領域を除いて前記再配線層を覆うように形成され、
前記第2の樹脂層は、前記外部端子の少なくとも根本を覆うように形成されていてもよい。
(8)この半導体装置において、
前記再配線層の下に、絶縁層をさらに有してもよい。
(9)本発明に係る回路基板には、上記半導体装置が実装されてなる。
(10)本発明に係る電子機器は、上記半導体装置を有する。
(11)本発明に係る半導体装置の製造方法は、集積回路と前記集積回路に電気的に接続する配線とを含む半導体本体の上方に、前記配線の一部であるパッドに電気的に接続し、前記パッドの上方に位置する第1の部分と前記第1の部分以外の第2の部分とを含む再配線層を形成すること、
前記第2の部分に外部端子を形成すること、
前記再配線層上に少なくとも一部が載るように、側面を有する第1の樹脂層を形成すること、
前記第1の樹脂層の上方に、前記第1の樹脂層の前記側面を覆うように第2の樹脂層を形成すること、及び、
前記半導体ウエハを切断すること、
を含むことを特徴とする。本発明によれば、第2の樹脂層が第1の樹脂層の側面を覆うので、第1及び第2の樹脂層間から水分が進入することがなく、第1の樹脂層の剥離が生じにくくなっており、信頼性の低下を防ぐことができる。
(12)この半導体装置の製造方法において、
前記第1の樹脂層を、前記外部端子を設ける領域を除いて前記再配線層を覆うように形成し、
前記第2の樹脂層を、前記外部端子の少なくとも根本を覆うように形成してもよい。
(13)この半導体装置の製造方法において、
前記再配線層の形成前に、絶縁層を形成することをさらに含み、
前記絶縁層上に前記再配線層を形成してもよい。
(14)この半導体装置の製造方法において、
前記半導体ウエハは、複数の第1の領域と、それぞれの前記第1の領域に囲まれた複数の第2の領域とを有し、
前記第1の樹脂層及び前記第2の樹脂層は、前記第2の領域内にのみ設けられ、
前記半導体ウエハを切断する際に、前記第1の領域を切断してもよい。
(15)この半導体装置の製造方法において、
前記第2の樹脂層のうち前記第1の樹脂層の側面を覆う部分を、前記第2の領域の外周端部の上方に形成してもよい。
(16)この半導体装置の製造方法において、
前記第2の樹脂層の形成は、放射線に対する感応性樹脂を使用し、リソグラフィ技術を適用して行ってもよい。
(17)この半導体装置の製造方法において、
前記第2の樹脂層の形成は、インクジェット法によって樹脂を吐出して行ってもよい。
(18)この半導体装置の製造方法において、
前記第2の樹脂層の形成は、印刷法によって樹脂を塗布して行ってもよい。
図1は、本発明の第1の実施の形態に係る半導体ウエハを示す断面図であり、図2は、半導体ウエハの平面図である。半導体ウエハ10の半導体本体には、集積回路12が形成されている。半導体ウエハ10を複数の半導体チップに切り出す場合、半導体ウエハ10には、複数の集積回路12が形成され、個々の半導体チップが個々の集積回路12を有することになる。
図7は、本発明の第2の実施の形態に係る半導体ウエハを示す図である。本実施の形態では、半導体ウエハ70は、非樹脂層40を有する。第1の実施の形態では、非樹脂層40を除去して半導体装置を製造したが、本実施の形態ではこれを除去せずに、非樹脂層40を切断しながら、半導体ウエハ70を切断する。非樹脂層40が、樹脂よりもブレード50の目詰まり等が生じにくい材料で形成されているので、この場合であっても、半導体ウエハ70の切断を良好に行うことができる。その他の詳細は、第1の実施の形態で説明した通りである。
図9及び図10は、本発明の第3の実施の形態に係る半導体装置の製造方法を説明する図である。本実施の形態では、第2の樹脂の形成方法が第1の実施の形態と異なる。その他の内容(プロセス及び構成)については、本実施の形態には、第1の実施の形態で説明した内容を適用することができる。あるいは、本実施の形態の内容を、第1の実施の形態で説明した内容に組み込んでもよい。
図11は、本発明の第4の実施の形態に係る半導体装置の製造方法を説明する図である。本実施の形態では、インクジェット法によって樹脂110を吐出して、第2の樹脂層を形成する。インクジェット法によれば、任意の領域に樹脂110を設けることができる。また、放射線に対する感応性を有しない樹脂を使用することができる。
図12は、本発明の第5の実施の形態に係る半導体装置の製造方法を説明する図である。本実施の形態では、撥液性膜120を形成する。撥液性膜120は、第2の樹脂層を形成するための樹脂122を弾くもので、例えばフッ素系樹脂などで形成することができる。撥液性膜120は、第1の領域32上及び外部端子26上に形成する。その形成には、インクジェット法を適用してもよいし、フォトリソグラフィを適用してもよい。そして、樹脂122を、スピンコート法などによって半導体ウエハ10上に設ける。樹脂122は、放射線に感応する性質を有している必要はないが、有していてもよい。
Claims (18)
- 集積回路と、前記集積回路に電気的に接続する配線と、を含み、前記配線の端部であるパッドを表面に含む半導体本体と、
前記半導体本体の上方に設けられ、前記パッドと電気的に接続し、前記パッドの上方に位置する第1の部分と前記第1の部分を除く第2の部分とを含む再配線層と、
前記再配線層の上方に設けられた第1の樹脂層と、
前記第1の樹脂層の上方に設けられ、前記第1の樹脂層の側面を覆う第2の樹脂層と、
前記再配線層の前記第2の部分の上方に、前記再配線層に電気的に接続して設けられた外部端子と、
を含むことを特徴とする半導体ウエハ。 - 請求項1記載の半導体ウエハにおいて、
前記第1の樹脂層は、前記外部端子を設ける領域を除いて前記再配線層を覆うように形成され、
前記第2の樹脂層は、前記外部端子の少なくとも根本を覆うように形成されてなる半導体ウエハ。 - 請求項1又は請求項2記載の半導体ウエハにおいて、
前記再配線層の下に、絶縁層をさらに有する半導体ウエハ。 - 請求項1から請求項3のいずれかに記載の半導体ウエハにおいて、
前記半導体ウエハは、複数の第1の領域と、それぞれの前記第1の領域に囲まれた複数の第2の領域とを有し、
前記第1の樹脂層及び前記第2の樹脂層は、前記第2の領域内にのみ設けられていることを特徴とする半導体ウエハ。 - 請求項4記載の半導体ウエハにおいて、
前記第2の樹脂層のうち前記第1の樹脂層の側面を覆う部分は、前記第2の領域の外周端部の上方に設けられていることを特徴とする半導体ウエハ。 - 集積回路と、前記集積回路に電気的に接続する配線と、を含み、前記配線の端部であるパッドを表面に含む半導体本体と、
前記半導体本体の上方に設けられ、前記パッドと電気的に接続し、前記パッドの上方に位置する第1の部分と前記第1の部分を除く第2の部分とを含む再配線層と、
前記再配線層の上方に設けられた第1の樹脂層と、
前記第1の樹脂層の上方に設けられ、前記第1の樹脂層の側面を覆う第2の樹脂層と、
前記再配線層の前記第2の部分の上方に、前記再配線層に電気的に接続して設けられた外部端子と、
を備えることを特徴とする半導体装置。 - 請求項6記載の半導体装置において、
前記第1の樹脂層は、前記外部端子を設ける領域を除いて前記再配線層を覆うように形成され、
前記第2の樹脂層は、前記外部端子の少なくとも根本を覆うように形成されてなる半導体装置。 - 請求項6又は請求項7記載の半導体装置において、
前記再配線層の下に、絶縁層をさらに有する半導体装置。 - 請求項6から請求項8のいずれかに記載の半導体装置が実装された回路基板。
- 請求項6から請求項8のいずれかに記載の半導体装置を有する電子機器。
- 集積回路と前記集積回路に電気的に接続する配線とを含む半導体本体の上方に、前記配線の一部であるパッドに電気的に接続し、前記パッドの上方に位置する第1の部分と前記第1の部分以外の第2の部分とを含む再配線層を形成すること、
前記第2の部分に外部端子を形成すること、
前記再配線層上に少なくとも一部が載るように、側面を有する第1の樹脂層を形成すること、
前記第1の樹脂層の上方に、前記第1の樹脂層の前記側面を覆うように第2の樹脂層を形成すること、
前記半導体ウエハを切断すること、及び、
を含むことを特徴とする半導体装置の製造方法。 - 請求項11記載の半導体装置の製造方法において、
前記第1の樹脂層を、前記外部端子を設ける領域を除いて前記再配線層を覆うように形成し、
前記第2の樹脂層を、前記外部端子の少なくとも根本を覆うように形成する半導体装置の製造方法。 - 請求項11又は請求項12記載の半導体装置の製造方法において、
前記再配線層の形成前に、絶縁層を形成することをさらに含み、
前記絶縁層上に前記再配線層を形成する半導体装置の製造方法。 - 請求項11から請求項13のいずれかに記載の半導体装置の製造方法において、
前記半導体ウエハは、複数の第1の領域と、それぞれの前記第1の領域に囲まれた複数の第2の領域とを有し、
前記第1の樹脂層及び前記第2の樹脂層は、前記第2の領域内にのみ設けられ、
前記半導体ウエハを切断する際に、前記第1の領域を切断することを特徴とする半導体ウエハの製造方法。
前記第1の領域の少なくとも一部は、前記第2の領域を囲む領域である半導体装置の製造方法。 - 請求項11から請求項14のいずれかに記載の半導体装置の製造方法において、
前記第2の樹脂層のうち前記第1の樹脂層の側面を覆う部分を、前記第2の領域の外周端部の上方に形成する半導体装置の製造方法。 - 請求項11から請求項15のいずれかに記載の半導体装置の製造方法において、
前記第2の樹脂層の形成は、放射線に対する感応性樹脂を使用し、リソグラフィ技術を適用して行う半導体装置の製造方法。 - 請求項11から請求項15のいずれかに記載の半導体装置の製造方法において、
前記第2の樹脂層の形成は、インクジェット法によって樹脂を吐出して行う半導体装置の製造方法。 - 請求項11から請求項15のいずれかに記載の半導体装置の製造方法において、
前記第2の樹脂層の形成は、印刷法によって樹脂を塗布して行う半導体装置の製造方法。
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US20050040523A1 (en) | 2005-02-24 |
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