Pressure detection device with noise resistant pressure sensor
US11143563B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2018 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Jul 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/141
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A noise resistance of a pressure sensor is improved while avoiding a hetero metal bonding. A pressure detection device includes a metal case having the diaphragm which is deformed due to a pressure received from a pressure medium, a sensor element which detects a pressure by detecting the deformation of the diaphragm, a lead frame which is electrically connected to the sensor element, and a connection member which holds the lead frame. A first surface of the lead frame, that is, the surface on a side near the metal case in the parallel plate region, and a second surface of the metal case, that is, the upper surface of the base member interpose at least one of the resin of the connection member being an insulator and the insulating adhesive and are disposed to face each other with a predetermined gap therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.