Patent ID: 9567210
Date: 2017-02-14
CPC Classifications: B81B,B81C

Claim:
1. A microelectromechanical systems (MEMS) package comprising: a device substrate comprising first and second MEMS devices which are arranged laterally with respect to one another; and a cap substrate bonded to the device substrate, enclosing a first cavity over the first MEMS device and a second cavity over the second MEMS device; wherein the second cavity comprises a major volume and a vent hole laterally connected by a lateral channel disposed between the device substrate and the cap substrate; wherein the vent hole is sealed by a sealing structure, defining a second pressure of the second cavity, which is different from a first pressure of the first cavity; wherein the lateral channel has a first vertical distance from a first lateral plane of the cap substrate to an upper surface of the device substrate, and the major volume has a second vertical distance from a second lateral plane of the cap substrate to the upper surface of the device substrate, the first vertical distance being less than the second vertical distance.