Patent ID: 11953392
Assignee: WUXI SENCOCH SEMICONDUCTOR CO., LTD.
Field: Micro-structural and nano-technology (Chemistry)
Classification: CPC G  B | IPC B  G

Claim 0:
1. A packaging structure of an MEMS pressure sensor, including:
a film, forming a sealing chamber with a base, wherein the sealing chamber is internally equipped with a sensing medium and a pressure sensor chip, when the external pressure increases, the film bends towards an inner side of the sealing chamber to cause the sealing chamber to contract and transmit pressure to the pressure sensor chip through the sensing medium;
a sealing cover, located on the base and suspended on one side of the film away from the sealing chamber, and
a first electrode connected to the film and a second electrode connected to the sealing cover, wherein in a case that voltages access the sealing cover and the film through the corresponding electrodes, an electrostatic attraction is generated between the sealing cover and the film to balance an overloaded pressure.