Mechanical packaging technique of attaching MEMS and flex circuit

摘要

The present invention disclosed provides for a rugged, compact sensing device for various implementations including those of automotive, marine, and other combustion technologies that require low cost accurate pressure sensing during internal combustion engine process. In one or more aspects of the present invention, a MEMS sensor connection with a flexible circuit is presented and the communication of which is preferably achieved through the use of wire bond technology.

主权项

1. A sensor assembly, comprising:
a rigid sensor body coupled with an internal combusting device for generating a pressure during operation; wherein the rigid sensor body further comprises a tip and is coupled to the electromechanical combusting device; a Microelectromechanical System (MEMS) sensor permanently attached and sealed to the tip and configured at a predetermined position in relation to a distal opening of the tip; a flexible cable connection in electrical communication with the MEMS sensor of for transmitting an electrical signal having pressure characteristic information to an information receiving device in communication with the assembly, wherein the flexible cable connection further comprises an electronic communications board for electrical communication, a flexible communications cable for electrical communication with the information receiving device and an internal communications cable situated within the sensor body and in electrical communication with the MEMS sensor, the electronic communications board being in electrical communication with the flexible communications cable and the internal communications cable.