Patent ID: 11906375
Assignee: PIEZO-METRICS INC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. A method for forming a first plurality of strain gages, the method comprising:
providing a semiconductor-on-insulator substrate comprising a device layer, a handle substrate, and a buried-oxide layer, wherein the device layer has a first thickness, and wherein the device layer comprises a first material having a first resistivity;
forming a first plurality of contact pairs, the contacts of each contact pair being electrically connected through the device layer;
etching the device layer to define a plurality of gage strips, wherein each gage strip includes at least one body of a first plurality of bodies, a frame of a plurality of frames, and a plurality of sprues, and wherein each body of the first plurality of bodies includes a different contact pair of the plurality thereof;
wherein each frame of the plurality thereof is physically coupled with each of its respective at least one body by at least one sprue of the plurality of sprues; and
releasing the plurality of gage strips from the handle substrate by removing a portion of the buried-oxide layer.