Method for forming a capacitive touch sensor for identifying a fingerprint
First Claim
1. A method of forming a capacitive sensor, the method comprising:
- forming, on a surface of a substrate a first plurality of sense electrodes and drive electrodes in a touch sensing area, the first plurality of sense electrodes and drive electrodes forming a capacitive touch position sensor configured to enable detection of the presence and position of a touch in the touch sensing area; and
forming, on the surface of the substrate, a second plurality of sense electrodes and drive electrodes in a fingerprint sensing area, the second plurality of sense electrodes and drive electrodes forming a capacitive finger print sensor configured to enable identification of the fingerprint of a finger placed in the fingerprint sensing area.
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Accused Products
Abstract
A method of forming a capacitive sensor includes forming a capacitive touch position sensor including a first plurality electrodes sense electrodes and drive electrodes in a touch sensing area of a capacitive sensor. The first plurality of sense electrodes and drive electrodes are configured to enable detection of the presence and position of a touch in the touch sensing area. The method also includes forming a capacitive finger print sensor including a second plurality of sense electrodes and drive in a fingerprint sensing area of the capacitive sensor. The second plurality of sense electrodes and drive are configured to enable identification of the fingerprint of a finger placed in the fingerprint sensing area.
42 Citations
18 Claims
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1. A method of forming a capacitive sensor, the method comprising:
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forming, on a surface of a substrate a first plurality of sense electrodes and drive electrodes in a touch sensing area, the first plurality of sense electrodes and drive electrodes forming a capacitive touch position sensor configured to enable detection of the presence and position of a touch in the touch sensing area; and forming, on the surface of the substrate, a second plurality of sense electrodes and drive electrodes in a fingerprint sensing area, the second plurality of sense electrodes and drive electrodes forming a capacitive finger print sensor configured to enable identification of the fingerprint of a finger placed in the fingerprint sensing area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification