IC-compatible MEMS structure
First Claim
Patent Images
1. An integrated circuit having a MEMS device, comprising:
- a plurality of semiconductor devices formed on a substrate;
a plurality of interconnects above and coupled with said plurality of semiconductor devices, wherein said plurality of interconnects incorporates said plurality of semiconductor devices into said integrated circuit; and
a MEMS resonator above and coupled with said plurality of interconnects, wherein said MEMS resonator is comprised of a member, a driver electrode and a sensor electrode, wherein said driver electrode and said sensor electrode are electrically coupled with said plurality of interconnects.
4 Assignments
0 Petitions
Accused Products
Abstract
An IC-compatible MEMS structure and a method to form such a structure are described. In an embodiment, an integrated circuit having a MEMS device is formed. The structure comprises a plurality of semiconductor devices formed on a substrate. A plurality of interconnects is above and coupled with the plurality of semiconductor devices, incorporating the plurality of semiconductor devices into the integrated circuit. A MEMS resonator is formed above, and coupled with, the plurality of interconnects. In one embodiment, the MEMS resonator is comprised of a member and a pair of electrodes. The pair of electrodes is electrically coupled with the plurality of interconnects.
-
Citations
24 Claims
-
1. An integrated circuit having a MEMS device, comprising:
-
a plurality of semiconductor devices formed on a substrate; a plurality of interconnects above and coupled with said plurality of semiconductor devices, wherein said plurality of interconnects incorporates said plurality of semiconductor devices into said integrated circuit; and a MEMS resonator above and coupled with said plurality of interconnects, wherein said MEMS resonator is comprised of a member, a driver electrode and a sensor electrode, wherein said driver electrode and said sensor electrode are electrically coupled with said plurality of interconnects. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of fabricating an integrated circuit having a MEMS device, comprising:
-
forming a plurality of semiconductor devices on a substrate; forming a plurality of interconnects coupled with said plurality of semiconductor devices, wherein said plurality of interconnects incorporates said plurality of semiconductor devices into said integrated circuit; and
,subsequent to forming said plurality of semiconductor devices and said plurality of interconnects, forming a MEMS resonator coupled with said plurality of interconnects, wherein said MEMS resonator is comprised of a member and a pair of electrodes, wherein said pair of electrodes is electrically coupled with said plurality of interconnects. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. A method of fabricating an integrated circuit having a MEMS device, comprising:
-
providing a substrate having a plurality of semiconductor devices incorporated into an integrated circuit by a plurality of interconnects; forming an isolation layer above said plurality of interconnects; forming a first set and a second set of conductive couplers in said isolation layer and connected with said plurality of interconnects; forming a first release layer above said isolation layer; forming a first structural layer above said first release layer; patterning said first structural layer and said first release layer to form a member, a driver electrode and a sensor electrode above a patterned first release layer, wherein said driver electrode is above said first set of conductive couplers, wherein said sensor electrode is above said second set of conductive couplers, and wherein said member is in between said driver and said sensor electrodes; forming coupler holes in each of said member, said driver electrode and said sensor electrode, wherein said coupler holes extend through said patterned first release layer; forming a second release layer adjacent to the sidewalls of said member; forming a second structural layer adjacent to said driver and said sensor electrodes, adjacent to said second release layer, and in said coupler holes; and removing at least a portion of each of said patterned first and said second release layers. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
-
Specification