Patent ID: 11965787
Assignee: NEXTINPUT, INC.
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 15:
16. A microelectromechanical system (MEMS) force sensor, comprising:
a sensor die configured to receive an applied force, the sensor die comprising a first substrate bonded to a second substrate, wherein at least a portion of the second substrate defines a deformable membrane;
a cavity in the first substrate;
an etch stop layer between the first substrate and the second substrate, wherein the etch stop layer at least partially covers the deformable membrane of the second substrate;
a sensing element on a surface of the second substrate, the sensing element operable to convert a strain on the surface of the second substrate to an analog electrical signal that is proportional to the strain;
a protective layer at least partially over the surface of the second substrate; and
a conductive pad on the protective layer and electrically coupled to the sensing element.