Patent ID: 8796866
Filing Date: 2014-08-05
Classification: B81B,B81C,G01L

Abstract:
1. A pressure sensor comprising: a micro-electromechanical pressure transducer (MEMS sensor) formed from silicon and comprising a diaphragm, the MEMS sensor having a coefficient of thermal expansion (C a plastic housing formed from first amount of polyphenylene sulfide (PPS) and a second amount of a filler comprising glass and a mineral, the plastic housing having a weight, about forty-percent of which is PPS, about sixty-percent of which is the filler, the plastic housing comprising a mounting surface for the MEMS sensor and having a pressure port configured to permit fluid to apply pressure to the diaphragm, the amount of PPS and the amount of fillers being selected such that the plastic housing has a coefficient of thermal expansion between about ten (10) parts per million (PPM) per degree Celsius (/° C.) and about thirty (30) PPM/° C.; and an adhesive comprising a first amount of an organic epoxy mixed with a second amount of a mineral filler, about sixty-five percent of the adhesive weight being the mineral filler such that the adhesive has a C