JP6515944B2 - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- JP6515944B2 JP6515944B2 JP2017061559A JP2017061559A JP6515944B2 JP 6515944 B2 JP6515944 B2 JP 6515944B2 JP 2017061559 A JP2017061559 A JP 2017061559A JP 2017061559 A JP2017061559 A JP 2017061559A JP 6515944 B2 JP6515944 B2 JP 6515944B2
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- resin layer
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Images
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Ceramic Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Pressure Sensors (AREA)
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- Wire Bonding (AREA)
Description
第1実施形態について説明する。本実施形態の物理量センサは、測定媒体の圧力を検出する圧力センサであり、例えば自動車の吸気圧センサとして用いられる。本実施形態の物理量センサは、図1、図2に示すように、基板1と、センサ素子2と、パッド3と、絶縁膜4と、ボンディングワイヤ5と、樹脂層6とを備えている。なお、図1では、絶縁膜4の図示を省略しており、ボンディングワイヤ5については、後述するボンディングボール51のみを図示している。
第2実施形態について説明する。本実施形態は、第1実施形態に対して樹脂層6とは別の樹脂層を追加したものであり、その他については第1実施形態と同様であるため、第1実施形態と異なる部分についてのみ説明する。
第3実施形態について説明する。本実施形態は、第2実施形態に対して樹脂層7の構成を変更したものであり、その他については第2実施形態と同様であるため、第2実施形態と異なる部分についてのみ説明する。
第4実施形態について説明する。本実施形態は、第2実施形態に対して樹脂層7の構成を変更したものであり、その他については第2実施形態と同様であるため、第2実施形態と異なる部分についてのみ説明する。
第5実施形態について説明する。本実施形態は、第2実施形態に対して樹脂層6の構成を変更したものであり、その他については第2実施形態と同様であるため、第2実施形態と異なる部分についてのみ説明する。
第6実施形態について説明する。本実施形態は、第2実施形態に対して保護膜を追加したものであり、その他については第2実施形態と同様であるため、第2実施形態と異なる部分についてのみ説明する。
第7実施形態について説明する。本実施形態は、第1実施形態に対して樹脂層6の形成方法を変更したものであり、その他については第1実施形態と同様であるため、第1実施形態と異なる部分についてのみ説明する。
第8実施形態について説明する。本実施形態は、第1実施形態に対して樹脂層6の形成方法を変更したものであり、その他については第1実施形態と同様であるため、第1実施形態と異なる部分についてのみ説明する。
第9実施形態について説明する。本実施形態は、第1実施形態に対して樹脂層6の形成方法を変更したものであり、その他については第1実施形態と同様であるため、第1実施形態と異なる部分についてのみ説明する。
なお、本発明は上記した実施形態に限定されるものではなく、特許請求の範囲に記載した範囲内において適宜変更が可能である。
3 パッド
5 ボンディングワイヤ
6 樹脂層
Claims (23)
- 基板(1、12)の表面に形成されたパッド(3)と、前記パッドを外部の回路に接続するボンディングワイヤ(5)と、を備える半導体装置であって、
少なくとも前記パッドと前記ボンディングワイヤとの接続部を覆うとともに、前記基板のうち前記パッドの外側の部分の少なくとも一部を露出させる樹脂層(6)を備え、
前記基板に形成され、印加された物理量に応じた信号を出力するセンサ素子(2)を備え、
前記パッドは、前記センサ素子の出力信号を読み取るためのものであり、
前記樹脂層は、少なくとも前記パッドと前記ボンディングワイヤとの接続部を覆うとともに、前記センサ素子の少なくとも一部を露出させる半導体装置。 - 前記樹脂層は、前記センサ素子の外側にのみ形成されている請求項1に記載の半導体装置。
- 前記センサ素子は、測定媒体の圧力によって変形するダイヤフラム(14)を備え、前記ダイヤフラムの変形に応じた信号を出力し、
前記パッドは、前記ダイヤフラムが形成された前記基板のうち前記ダイヤフラムの外側の部分に配置されており、
前記センサ素子が出力する信号に基づいて前記測定媒体の圧力を検出する請求項1または2に記載の半導体装置。 - 前記樹脂層を第1樹脂層として、
少なくとも前記パッドの上部において前記第1樹脂層の上部に形成された第2樹脂層(7)を備え、
前記第1樹脂層は、前記第2樹脂層よりも液体および気体の透過量が少ない請求項1ないし3のいずれか1つに記載の半導体装置 - 前記第2樹脂層は、前記パッドの上部に加えて、前記センサ素子の上部にも形成されている請求項4に記載の半導体装置。
- 前記第2樹脂層は、少なくとも前記センサ素子の一部を露出させるように形成されている請求項4または5に記載の半導体装置。
- 基板(1、12)の表面に形成されたパッド(3)と、前記パッドを外部の回路に接続するボンディングワイヤ(5)と、を備える半導体装置であって、
少なくとも前記パッドと前記ボンディングワイヤとの接続部を覆うとともに、前記基板のうち前記パッドの外側の部分の少なくとも一部を露出させる第1樹脂層(6)を備え、
少なくとも前記パッドの上部において前記第1樹脂層の上部に形成された第2樹脂層(7)を備え、
前記第1樹脂層は、前記第2樹脂層よりも液体および気体の透過量が少ない半導体装置。 - 前記第1樹脂層は、前記第2樹脂層の材料よりも液体および気体の透過率が低い材料で構成されている請求項4ないし7のいずれか1つに記載の半導体装置。
- 前記第2樹脂層は、前記第1樹脂層の材料よりも弾性率が低い材料で構成されている請求項4ないし8のいずれか1つに記載の半導体装置。
- 前記第2樹脂層は、前記パッドのうち前記ボンディングワイヤおよび前記第1樹脂層から露出した部分を覆うように形成されている請求項4ないし9のいずれか1つに記載の半導体装置。
- 前記第2樹脂層は、前記ボンディングワイヤを覆うように形成されている請求項4ないし10のいずれか1つに記載の半導体装置。
- 前記第2樹脂層は、前記第1樹脂層の上部に形成された第1層(71)と、前記第1層の上部に配置された第2層(72)とを備える請求項4ないし11のいずれか1つに記載の半導体装置。
- 前記樹脂層を第1樹脂層として、
前記第1樹脂層の上面に形成されたパラキシリレン系ポリマーで構成される保護膜(8)を備え、
前記第1樹脂層は、前記保護膜よりも液体および気体の透過量が少ない請求項1ないし12のいずれか1つに記載の半導体装置。 - 基板(1、12)の表面に形成されたパッド(3)と、前記パッドを外部の回路に接続するボンディングワイヤ(5)と、を備える半導体装置であって、
少なくとも前記パッドと前記ボンディングワイヤとの接続部を覆うとともに、前記基板のうち前記パッドの外側の部分の少なくとも一部を露出させる樹脂層(6)を備え、
前記第1樹脂層の上面に形成されたパラキシリレン系ポリマーで構成される保護膜(8)を備え、
前記樹脂層は、前記保護膜よりも液体および気体の透過量が少ない半導体装置。 - 前記パッドの表面に形成され、前記パッドの上面を露出させる開口部(41)が形成された絶縁膜(4)を備え、
前記パッドのうち前記開口部から露出した部分は、前記ボンディングワイヤのうち前記パッドから浮いた部分と重なる部分において、丸みを帯びた形状とされている請求項1ないし14のいずれか1つに記載の半導体装置。 - 前記パッドの上面は、前記ボンディングワイヤのうち前記パッドから浮いた部分と重なる部分において、丸みを帯びた形状とされている請求項1ないし15のいずれか1つに記載の半導体装置。
- 前記樹脂層を第1樹脂層として、
前記基板の表面に形成された撥液膜(9)を備え、
前記第1樹脂層は、前記撥液膜の外側に形成されている請求項1ないし16のいずれか1つに記載の半導体装置。 - 基板(1、12)の表面に形成されたパッド(3)と、前記パッドを外部の回路に接続するボンディングワイヤ(5)と、を備える半導体装置であって、
少なくとも前記パッドと前記ボンディングワイヤとの接続部を覆うとともに、前記基板のうち前記パッドの外側の部分の少なくとも一部を露出させる樹脂層(6)を備え、
前記基板の表面に形成された撥液膜(9)を備え、
前記樹脂層は、前記撥液膜の外側に形成されている半導体装置。 - 前記樹脂層を第1樹脂層として、
前記第1樹脂層は、前記パッドのうち前記ボンディングワイヤから露出した部分を覆うように形成されている請求項1ないし18のいずれか1つに記載の半導体装置。 - 前記樹脂層を第1樹脂層として、
前記第1樹脂層は、エポキシ樹脂、または、ポリアクリル樹脂で構成される請求項1ないし19のいずれか1つに記載の半導体装置。 - 前記樹脂層を第1樹脂層として、
前記第1樹脂層は、前記ボンディングワイヤのうち前記パッドとの接続部のみを覆っている請求項1ないし20のいずれか1つに記載の半導体装置。 - 前記樹脂層を第1樹脂層として、
前記第1樹脂層は、前記ボンディングワイヤのうち前記パッドとの接続部に加え、前記パッドから浮いた部分も覆っている請求項1ないし20のいずれか1つに記載の半導体装置。 - 前記パッドを複数備え、
前記ボンディングワイヤは、複数の前記パッドのうち一部のみに接続されており、
前記樹脂層を第1樹脂層として、前記第1樹脂層は、複数の前記パッドのうち、前記ボンディングワイヤが接続されたパッドに加え、前記ボンディングワイヤから離されたパッドも覆っている請求項1ないし22のいずれか1つに記載の半導体装置。
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