SEMICONDUCTOR PRESSURE SENSOR

PROBLEM TO BE SOLVED: To enable the stable control of an internal-combustion engine by providing slits between the sensor element-mounting part and a terminal connecting part of a printed board and preventing output fluctuations from occurring in a sensor element even with stress exerted on the prin...

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Bibliographic Details
Main Author NISHIMURA ETSUO
Format Patent
LanguageEnglish
Published 30.04.1999
Edition6
Subjects
BLASTING
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
MECHANICAL ENGINEERING
PHYSICS
PRINTED CIRCUITS
TESTING
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To enable the stable control of an internal-combustion engine by providing slits between the sensor element-mounting part and a terminal connecting part of a printed board and preventing output fluctuations from occurring in a sensor element even with stress exerted on the printed board from a terminal. SOLUTION: In a printed board 3, a sensor element and an electronic circuit part 10 are mounted on a sensor element-mounting part 3a, and the lands 3b of a terminal connecting part 3c are extended from the supporting part of a metal cover to connect and fix a terminal. Slits 11 are provided between the sensor element-mounting part 3a and the terminal connecting part 3c so as to pass through the printed board approximately in parallel with the alignment of the lands 3b. By this, even if the terminal is displaced and stress is exerted on the printed board 3 due to changes in temperature and pressure exerted on a connector part, distortion in the printed board 3 is absorbed by the slits 11. Therefore, as only the terminal connecting part 3c is distorted, it is possible to suppress output fluctuations in the mounted sensor element and to control an internal combustion engine stably.
Bibliography:Application Number: JP19970282325