Patent ID: 9540232
Date: 2017-01-10
CPC Classifications: B81B,B81C,H01L

Claim:
1. A method for fabricating a MEMS (Micro Electro Mechanical System) IC (Integrated Circuit) device comprising: receiving a CMOS substrate comprising a plurality of CMOS circuits and a first plurality of interconnection locations, wherein the first plurality of interconnection locations comprises a first set of locations and a second set of locations, wherein the CMOS substrate includes a surface portion, and wherein the first set of locations is disposed upon the surface portion; receiving a MEMS substrate comprising at least one MEMS device and a second plurality of interconnection locations comprising a third set of locations; coupling the MEMS substrate to the CMOS substrate such that the second set of locations are coupled to the third set of locations; encapsulating the MEMS substrate and the surface portion of the CMOS substrate with a molding material, wherein the molding material forms a top surface; creating a first plurality of vias in the molding material from the top surface to the surface portion of the CMOS substrate, thereby exposing at least a portion of the first set of locations; disposing a conductive material in the first plurality of vias such that the conductive material is electrically coupled to the first set of locations; and forming a plurality of interconnects from the conductive material to the top surface of the molding material.