JP4506478B2 - 圧力センサ - Google Patents
圧力センサ Download PDFInfo
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- JP4506478B2 JP4506478B2 JP2005010343A JP2005010343A JP4506478B2 JP 4506478 B2 JP4506478 B2 JP 4506478B2 JP 2005010343 A JP2005010343 A JP 2005010343A JP 2005010343 A JP2005010343 A JP 2005010343A JP 4506478 B2 JP4506478 B2 JP 4506478B2
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- H01L24/02—Bonding areas ; Manufacturing methods related thereto
- H01L24/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
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- H01L2224/0212—Auxiliary members for bonding areas, e.g. spacers
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- H01L2224/48465—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Measuring Fluid Pressure (AREA)
- Pressure Sensors (AREA)
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Description
以下、本発明の一実施形態が適用された圧力センサについて説明する。図1に、本実施形態における圧力センサS1の断面図を示し、この図に基づいて説明する。なお、この圧力センサS1は、例えば、ディーゼル車の排気清浄フィルタであるDPFの差圧計測等に適用される。
上記第1実施形態では、第2保護膜25を化学気相堆積法による窒化珪素膜と酸化ケイ素膜のいずれかを含む膜としているが、原子層成長法(ALD法)による酸化アルミ膜、酸化チタン膜のいずれかを含む膜としても良い。この場合、酸化アルミ膜と酸化チタン膜とが交互に積層された膜で第2保護膜25を形成することもできる。
上記実施形態では、金属膜をAl膜23の一層とし、このAl膜23の表面に直接ボンディングワイヤ13を形成する電気的な接続構造を採用する場合について説明した。しかしながら、このような構造は単なる一例を示したものであり、他の構造としても構わない。
Claims (2)
- センサ素子(20)が形成された半導体基板(21)と、
前記半導体基板(21)の表面に形成され、前記センサ素子(20)の所望場所に繋がるコンタクトホールが形成されてなる絶縁膜(22)と、
前記絶縁膜(22)の上の所定領域に形成され、前記コンタクトホールを通じて前記センサ素子(20)と電気的に接続される金属膜(23)と、
前記金属膜(23)におけるパッドとなる領域が露出するように、前記金属膜(23)および前記絶縁膜(22)の上に形成された第1保護膜(24)と、
前記金属膜(23)におけるパッドとなる領域と電気的に接続されたボンディングワイヤ(13)とを有し、
前記半導体基板(21)に形成された前記センサ素子(20)により、圧力導入孔(31)から導入された圧力測定対象の圧力に応じた検出信号を発生させるように構成される圧力センサにおいて、
前記金属膜(23)におけるパッドとなる領域、前記第1保護膜(24)のうち前記パッドの周囲に位置する部分、および、前記ボンディングワイヤ(13)における前記金属膜(23)と電気的に接続される部位を覆うように、原子層成長法により酸化アルミ膜と酸化チタン膜が交互に積層されて形成された第2保護膜(25)が備えられていることを特徴とする圧力センサ。 - 前記第1保護膜(24)は、窒化珪素膜または酸化珪素膜に窒化珪素膜を積層した膜であることを特徴とする請求項1に記載の圧力センサ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005010343A JP4506478B2 (ja) | 2005-01-18 | 2005-01-18 | 圧力センサ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005010343A JP4506478B2 (ja) | 2005-01-18 | 2005-01-18 | 圧力センサ |
Publications (2)
Publication Number | Publication Date |
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JP2006200926A JP2006200926A (ja) | 2006-08-03 |
JP4506478B2 true JP4506478B2 (ja) | 2010-07-21 |
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ID=36959079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005010343A Expired - Fee Related JP4506478B2 (ja) | 2005-01-18 | 2005-01-18 | 圧力センサ |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112007002372B4 (de) * | 2006-11-13 | 2017-04-06 | Inficon Gmbh | Vakuummembranmesszelle und Verfahren zur Herstellung einer derartigen Messzelle |
US8108157B2 (en) | 2008-02-18 | 2012-01-31 | The University Of Akron | Electrospun fibrous nanocomposites as permeable, flexible strain sensors |
JP5051039B2 (ja) * | 2008-07-23 | 2012-10-17 | 株式会社デンソー | 圧力センサ |
CH708708A1 (de) * | 2013-10-03 | 2015-04-15 | Kistler Holding Ag | Messelement zum Messen eines Drucks und Druckmesssensor. |
JP2019152625A (ja) * | 2018-03-06 | 2019-09-12 | 株式会社デンソー | 電子装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55124271A (en) * | 1979-03-19 | 1980-09-25 | Mitsubishi Electric Corp | Semiconductor pressure transducer |
JPS5696875A (en) * | 1979-12-29 | 1981-08-05 | Mitsubishi Electric Corp | Semiconductor pressure sensing device and manufacture thereof |
JPH01183165A (ja) * | 1988-01-18 | 1989-07-20 | Fuji Electric Co Ltd | 半導体圧力センサ |
JP2003021547A (ja) * | 2001-07-09 | 2003-01-24 | Denso Corp | 薄膜式センサならびにフローセンサおよびその製造方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0680695B2 (ja) * | 1987-07-03 | 1994-10-12 | 日本電気株式会社 | 半導体装置 |
-
2005
- 2005-01-18 JP JP2005010343A patent/JP4506478B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55124271A (en) * | 1979-03-19 | 1980-09-25 | Mitsubishi Electric Corp | Semiconductor pressure transducer |
JPS5696875A (en) * | 1979-12-29 | 1981-08-05 | Mitsubishi Electric Corp | Semiconductor pressure sensing device and manufacture thereof |
JPH01183165A (ja) * | 1988-01-18 | 1989-07-20 | Fuji Electric Co Ltd | 半導体圧力センサ |
JP2003021547A (ja) * | 2001-07-09 | 2003-01-24 | Denso Corp | 薄膜式センサならびにフローセンサおよびその製造方法 |
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