Patent ID: 9508663
Filing Date: 2016-11-29
CPC Classification: B81B,B81C,H01L

Claim Text:
1. A microelectromechanical systems (MEMS) device comprising: a semiconductor substrate; a plurality of solder bumps formed on a surface of the semiconductor substrate; a CMOS-MEMS die including a CMOS die and a MEMS die vertically stacked and attached to one another, wherein the MEMS die is disposed between the semiconductor substrate and the CMOS die; and a plurality of stud bumps formed on the CMOS die, wherein the plurality of stud bumps and the plurality of solder bumps being positioned between the semiconductor substrate and the CMOS die and an upper-most surface of the semiconductor substrate is positioned below a lower-most surface of the CMOS die and a lower-most surface of the MEMS die to define a height between the CMOS die and the semiconductor substrate, further wherein the plurality of stud bumps and the plurality of solder bumps are in direct contact.