Invention Application
- Patent Title: SENSOR MISALIGNMENT MEASURING DEVICE
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Application No.: US16750650Application Date: 2020-01-23
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Publication No.: US20200158489A1Publication Date: 2020-05-21
- Inventor: Ilya Gurin , Leonardo Baldasarre
- Applicant: INVENSENSE, INC.
- Main IPC: G01B7/31
- IPC: G01B7/31 ; H01L21/66 ; G01B7/00 ; G01B7/305

Abstract:
The present disclosure relates to measuring misalignment between layers of a semiconductor device. In one embodiment, a device includes a first conductive layer; a second conductive layer; one or more first electrodes embedded in the first conductive layer; one or more second electrodes embedded in the second conductive layer; a sensing circuit connected to the one or more first electrodes; and a plurality of time-varying signal sources connected to the one or more second electrodes, wherein the one or more first electrodes and the one or more second electrodes form at least a portion of a bridge structure that exhibits an electrical property that varies as a function of misalignment of the first conductive layer and the second conductive layer in an in-plane direction.
Public/Granted literature
- US11002527B2 In-plane sensor misalignment measuring device using capacitive sensing Public/Granted day:2021-05-11
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