JPWO2014083750A1 - 光学装置及びその製造方法 - Google Patents
光学装置及びその製造方法 Download PDFInfo
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Abstract
Description
第1の実施形態に係る光学装置について図1を参照しながら説明する。
図2に、第1の実施形態の第1変形例に係る光学装置の断面構成を示す。
図3に、第1の実施形態の第2変形例に係る光学装置の断面構成を示す。
図4に、第1の実施形態の第3変形例に係る光学装置の断面構成を示す。
以下、第1の実施形態に係る光学装置の製造方法について図5A〜図5D及び図6A〜図6Eを参照しながら説明する。
以下、第2の実施形態に係る光学装置について図7を参照しながら説明する。
以下、第2の実施形態に係る光学装置の製造方法について図8A〜図8D及び図9A〜図9Dを参照しながら説明する。
2 第1の電極
3 撮像素子(光学素子)
4 第2の電極
5 第3の電極
6 第1の配線部
7,7A 透明部材
8 突起電極
9 半導体素子
10 樹脂部
10A 樹脂材
11,11B 貫通電極
11A 放熱用部材
12 第2の配線部
13 素子電極
14 素子配線部
15 電極
16 外部電極端子
17 保護樹脂層
20 ダム部
22 第4の電極
23 第5の電極
24 第3の配線部
Claims (19)
- 主面に光学部を有する光学素子と、
前記光学部と対向して配置された透明部材と、
前記光学素子における主面と反対側の裏面上に配置され、前記光学素子と電気的に接続された半導体素子と、
前記透明部材における前記光学素子と対向する面上で、前記光学素子と前記半導体素子との周辺領域に設けられた樹脂部とを備えていることを特徴とする光学装置。 - 前記樹脂部は、前記光学素子の側面と、前記光学素子の裏面の少なくとも一部と、前記半導体素子の側面とを覆っていることを特徴とする請求項1に記載の光学装置。
- 前記樹脂部は、前記光学素子の側面と、前記半導体素子の側面と、前記半導体素子における回路形成面と反対側の面の一部とを覆っていることを特徴とする請求項1に記載の光学装置。
- 前記光学素子の主面には、第1の電極が設けられ、
前記樹脂部における前記透明部材と反対側の面上には、前記第1の電極と電気的に接続された外部電極端子とが設けられていることを特徴とする請求項1〜3のいずれか1項に記載の光学装置。 - 前記光学素子の主面には、第1の電極が設けられ、
前記透明部材における前記光学素子と対向する面上には、第2の電極、該第2の電極の外側に位置する第3の電極、及び前記第2の電極と前記第3の電極とを電気的に接続する第1の配線部が設けられ、
前記第1の電極と前記第2の電極とは互いに対向し、前記第1の電極と前記第2の電極との間に配された第1の突起電極により電気的に接続され、
前記樹脂部における前記光学素子及び前記半導体素子の外方には、前記光学素子と電気的に接続された第1の貫通電極が設けられ、前記第1の貫通電極の一方の端部は、前記第3の電極と接続され、
前記樹脂部における前記透明部材と反対側の面上には、前記第1の貫通電極の他方の端部と接続された第2の配線部と外部電極端子とが設けられていることを特徴とする請求項1〜3のいずれか1項に記載の光学装置。 - 前記樹脂部において、前記光学素子及び前記半導体素子の周辺の領域を覆う樹脂の構成材料と、前記第1の突起電極の周辺の領域を覆う樹脂の構成材料とは、同一であることを特徴とする請求項5に記載の光学装置。
- 前記外部電極端子は、前記光学素子の主面側からの平面視において、前記半導体素子と重ならない位置に設けられていることを特徴とする請求項4〜6のいずれか1項に記載の光学装置。
- 前記光学素子は、固体撮像素子であることを特徴とする請求項1〜7のいずれか1項に記載の光学装置。
- 前記半導体素子は、前記透明部材の中央部に配置されていることを特徴とする請求項1〜8のいずれか1項に記載の光学装置。
- 前記光学素子の裏面には、第4の電極、該第4の電極の外側に位置する第5の電極、及び前記第4の電極と前記第5の電極とを電気的に接続する第3の配線部が設けられ、
前記半導体素子は、第2の突起電極を介して前記第4の電極とフリップチップ接続されており、
前記樹脂部には、一方の端部が前記第5の電極と接続された第2の貫通電極が設けられていることを特徴とする請求項1〜9のいずれか1項に記載の光学装置。 - 前記樹脂部において、前記光学素子の周辺の領域を覆う樹脂の構成材料と、前記半導体素子の周辺の領域を覆う樹脂の構成材料とは、同一であることを特徴とする請求項1〜10のいずれか1項に記載の光学装置。
- 前記樹脂部における前記光学素子の裏面に設けられ、前記樹脂部を貫通する放熱用部材をさらに備えていることを特徴とする請求項1〜11のいずれか1項に記載の光学装置。
- 前記放熱用部材は、前記第1の貫通電極よりも径が大きいことを特徴とする請求項12に記載の光学装置。
- 複数の素子形成領域を含む板状の透明部材の上に、前記各素子形成領域のそれぞれに電極を有する第1の配線部を形成する工程と、
前記透明部材の前記各素子形成領域の上に、それぞれ主面に光学部を有する複数の光学素子を前記主面と前記第1の配線部の前記電極とをそれぞれ対向させて配置する工程と、
前記光学素子における主面と反対側の面である裏面上に、半導体素子を配置する工程と、
前記光学素子の側面及び該光学素子の裏面の少なくとも一部と前記半導体素子の側面とを樹脂材により覆うことにより、樹脂部を形成する工程と、
前記樹脂部の前記透明部材と反対側の面から前記樹脂部を貫通して、前記第1の配線部の前記電極と電気的に接続される第1の貫通電極を形成する工程と、
前記樹脂部における前記透明部材と反対側の面上に、電極を有する第2の配線部と、該第2の配線部と電気的に接続される外部電極端子とを形成する工程と、
前記各素子形成領域ごとに、前記透明部材及び前記樹脂部を切断して、それぞれ個片化する工程とを備えていることを特徴とする光学装置の製造方法。 - 前記第1の貫通電極を形成する工程は、前記樹脂部における前記透明部材と反対側の面から前記樹脂部を貫通して、前記光学素子の前記裏面と接続される放熱用部材を形成する工程を含むことを特徴とする請求項14に記載の光学装置の製造方法。
- 前記光学素子を前記透明部材の上に配置する工程よりも前に、前記光学素子の裏面上に電極を有する第3の配線部を形成する工程をさらに備え、
前記光学素子の裏面上に前記半導体素子を配置する工程において、前記半導体素子は、前記第3の配線部の前記電極と電気的に接続されるように配置し、
前記第1の貫通電極を形成する工程は、前記樹脂部における前記透明部材と反対側の面から前記樹脂部を貫通して、前記光学素子の前記第3の配線部の前記電極と電気的に接続される第2の貫通電極を形成する工程を含むことを特徴とする請求項14又は15に記載の光学装置の製造方法。 - 複数の素子形成領域を含む板状の透明部材の上に、前記各素子形成領域のそれぞれに電極を有する第1の配線部を形成する工程と、
前記透明部材の前記各素子形成領域の上に、それぞれ主面に光学部を有する複数の光学素子を前記主面と前記第1の配線部の前記電極とをそれぞれ対向させて配置する工程と、
前記光学素子における主面と反対側の面である裏面上に、半導体素子を配置する工程と、
前記光学素子の側面と、前記半導体素子の側面と、前記半導体素子における回路形成面と反対側の面の一部とを樹脂材により覆うことにより、樹脂部を形成する工程と、
前記樹脂部の前記透明部材と反対側の面から前記樹脂部を貫通して、前記第1の配線部の前記電極と電気的に接続される第1の貫通電極を形成する工程と、
前記樹脂部における前記透明部材と反対側の面上に、電極を有する第2の配線部と、該第2の配線部と電気的に接続される外部電極端子とを形成する工程と、
前記各素子形成領域ごとに、前記透明部材及び前記樹脂部を切断して、それぞれ個片化する工程とを備えていることを特徴とする光学装置の製造方法。 - 前記第1の配線部を形成する工程と、前記透明部材の上に前記各光学素子を配置する工程との間に、
前記第1の配線部の前記電極の上に突起電極を形成すると共に、前記透明部材における前記光学部と対向する領域の周囲に、前記樹脂材の前記光学部上への流入を阻止するダム部を形成する工程をさらに備えていることを特徴とする請求項14〜17のいずれか1項に記載の光学装置の製造方法。 - 前記ダム部の構成材料と前記突起電極の構成材料とは、同一であることを特徴とする請求項18に記載の光学装置の製造方法。
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