JP2020061511A - 電気部品の積層体とその製造方法 - Google Patents
電気部品の積層体とその製造方法 Download PDFInfo
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- JP2020061511A JP2020061511A JP2018193174A JP2018193174A JP2020061511A JP 2020061511 A JP2020061511 A JP 2020061511A JP 2018193174 A JP2018193174 A JP 2018193174A JP 2018193174 A JP2018193174 A JP 2018193174A JP 2020061511 A JP2020061511 A JP 2020061511A
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Abstract
Description
図1(a)は電気部品の積層体(以下、積層体1という)の上面図、図1(b)は図1(a)のA−A線で切断した積層体1の断面図である。図2は積層体1のより詳細な断面図、図3(a)〜(c)はそれぞれ図2のA部、B部、C部のさらに詳細な部分断面図である。
図8〜11を参照して第2の実施形態に係る積層体101について説明する。ここでは主に第1の実施形態との差異を説明する。特に説明のない構成、効果については第1の実施形態と同様である。図8は第2の実施形態に係る積層体101の上面図、図9(a),9(b)はそれぞれ図8のA−A線、B−B線で切った積層体101の断面図である。図10(a),10(b)はそれぞれ図9(a)のD部、E部のさらに詳細な部分断面図である。なお、図9(a)のA部、B部は第1の実施形態と同じであるので、図3及び上述の説明を参照されたい。
2 第1の電気部品
3 第2の電気部品
4 接着層
5 導電層
6 濡れ性制御層
7 第1の絶縁層
9 モールド材
11 第3の絶縁層
13 第2の絶縁層
21 第1の面
22 第2の面
23 第1の側面
24 第1の電気接続部
31 第3の面
33 第2の側面
34 第2の電気接続部
41 第1の部分
42 第2の部分
K 隅部
Claims (23)
- 第1の面と、前記第1の面の裏面である第2の面と、前記第1の面と前記第2の面との間に位置する側面と、を備えた第1の電気部品と、
前記第1の電気部品が搭載される第3の面を備え、前記第3の面は前記第2の面と対向するとともに前記側面との間で隅部を形成する第2の電気部品と、
前記第2の面と前記第3の面との間に位置する第1の部分と、前記隅部を埋める曲面状の第2の部分とを有し、前記第1の電気部品を前記第2の電気部品に接合する接着層と、
前記側面の側方を延び、前記第2の部分に沿って湾曲し、前記第3の面まで延びている導電層と、を有する、電気部品の積層体。 - 前記導電層は前記第1の面から前記第3の面まで延びている、請求項1に記載の電気部品の積層体。
- 前記第1の電気部品は前記第1の面に第1の電気接続部を有し、
前記第2の電気部品は前記第3の面に第2の電気接続部を有し、
前記導電層は前記接着層の第2の部分に沿って延び、前記第1の電気接続部を前記第2の電気接続部に接続している、請求項2に記載の電気部品の積層体。 - 前記第2の電気部品と前記接着層との間に、前記第3の面より濡れ性の大きい前記接着層の保持面を有している、請求項1から3のいずれか1項に記載の電気部品の積層体。
- 前記保持面は、前記第3の面から前記第1の電気部品に向けて突き出している、請求項4に記載の電気部品の積層体。
- 前記保持面の周縁部は、前記第3の面と直交する方向からみて、前記第1の電気部品の全周で前記第1の電気部品の外側に形成されている、請求項4または5に記載の電気部品の積層体。
- 前記第3の面から前記第1の電気部品と離れる方向に引き込み、前記接着層を保持する凹部を有している、請求項1から3のいずれか1項に記載の電気部品の積層体。
- 前記凹部の周縁部は、前記第3の面と直交する方向からみて、前記第1の電気部品の全周で前記第1の電気部品の外側に形成されている、請求項7に記載の電気部品の積層体。
- 前記第3の面に設けられ、前記接着層を保持する枠部材を有している、請求項1から3のいずれか1項に記載の電気部品の積層体。
- 前記枠部材の周縁部は、前記第3の面と直交する方向からみて、前記第1の電気部品の全周で前記第1の電気部品の外側に形成されている、請求項9に記載の電気部品の積層体。
- 前記第2の部分の膜厚は前記第3の面に向けて単調増加している、請求項1から10のいずれか1項に記載の電気部品の積層体。
- 前記第2の部分は前記隅部の近傍が凹んだ曲面形状となっている、請求項1から11のいずれか1項に記載の電気部品の積層体。
- 前記導電層と前記第3の面との間及び前記導電層と前記側面との間に設けられた第1の絶縁層を有する、請求項1から12のいずれか1項に記載の電気部品の積層体。
- 前記側面に設けられた第2の絶縁層を有する、請求項1から13のいずれか1項に記載の電気部品の積層体。
- 前記接着層はシリコーン樹脂からなり、
前記接着層の前記第2の部分と前記導電層とを覆うエポキシ樹脂層と、前記接着層の前記第2の部分と前記エポキシ樹脂層との間に位置する第3の絶縁層と、を有する、請求項1から14のいずれか1項に記載の電気部品の積層体。 - 前記第1の電気部品と前記第2の電気部品の一方は磁気センサであり、他方は前記磁気センサに接続された集積回路である、請求項1から15のいずれか1項に記載の電気部品の積層体。
- 第1の面と、前記第1の面の裏面である第2の面と、前記第1の面と前記第2の面との間に位置する側面と、を備えた第1の電気部品を、前記第1の電気部品の前記第2の面が第2の電気部品の第3の面と対向する向きで且つ前記第3の面が前記側面との間で隅部を形成するように前記第2の電気部品に搭載し、前記第2の電気部品に接着層で接合することと、
前記側面の側方を延び、さらに前記第3の面まで延びる導電層を設けることと、を有し、
前記接着層は前記第2の面と前記第3の面との間に位置する第1の部分と、前記隅部を埋める曲面状の第2の部分とが形成されるように設けられ、前記導電層は前記第2の部分に沿って湾曲して設けられる、電気部品の積層体の製造方法。 - 前記接着層は前記第3の面に液体状の樹脂を塗布し、塗布された樹脂を介して前記第1の電気部品を前記第2の電気部品に搭載し、前記樹脂を硬化させることによって形成され、前記樹脂は、硬化する前に広がる範囲を抑制する保持手段によって所定の範囲に保持される、請求項17に記載の電気部品の積層体の製造方法。
- 前記保持手段は、前記第3の面より濡れ性の大きい前記樹脂の保持面である、請求項18に記載の電気部品の積層体の製造方法。
- 前記保持面は、前記第3の面から前記第1の電気部品に向けて突き出している、請求項19に記載の電気部品の積層体の製造方法。
- 前記保持手段は、前記第3の面から前記第1の電気部品と離れる方向に引き込む凹部である、請求項18に記載の電気部品の積層体の製造方法。
- 前記保持手段は、前記第3の面に設けられた枠部材である、請求項18に記載の電気部品の積層体の製造方法。
- ウエハ工程において前記側面に第2の絶縁層が設けられる、請求項17から22のいずれか1項に記載の電気部品の積層体の製造方法。
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