Measuring and testing – Fluid pressure gauge – Electrical
Reexamination Certificate
2007-05-01
2007-05-01
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Fluid pressure gauge
Electrical
C073S753000, C073S756000
Reexamination Certificate
active
11281449
ABSTRACT:
A pressure sensor includes a sensor chip having a pressure receiving surface formed on one surface of the sensor chip, a first case having one end portion at which the sensor chip is provided, a second case attached to the one end portion of the first case to cover the sensor chip. The second case is provided with a pressure introducing passage for introducing the pressure to the sensor chip, and a wiring board is provided at the one end portion of the first case to have a surface facing toward the pressure introducing passage. In the pressure sensor, the sensor chip is electrically connected with the surface of the wiring board through bumps by a flip-chip bonding such that the pressure receiving surface faces the surface of the wiring board, and an insulating member is provided to seal a connection portion of the bumps.
REFERENCES:
patent: 6408697 (2002-06-01), Ootake et al.
patent: 6986285 (2006-01-01), Avisse
patent: A-H09-43075 (1997-02-01), None
patent: A-H09-126920 (1997-05-01), None
patent: A-2004-279327 (2004-10-01), None
Ariyoshi Hiromi
Mizuno Tiaki
Tanaka Masaaki
Denso Corporation
Jenkins Jermaine
Lefkowitz Edward
Posz Law Group , PLC
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