Capacitive sensor packaging
First Claim
1. An assembly for an electronic device, comprising:
- a device housing including an opening;
a fingerprint sensor;
plastic molded above the fingerprint sensor, the plastic defining a button structure disposed to fit in the opening;
a switch stacked vertically below the fingerprint sensor; and
a support plate positioned between the fingerprint sensor and the switch.
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Accused Products
Abstract
An apparatus comprises a fingerprint sensor having a set of capacitive elements configured for capacitively coupling to a user fingerprint. The fingerprint sensor may be disposed under a control button or display element of an electronic device, for example one or more of a control button and a display component. A responsive element is responsive to proximity of the user fingerprint, for example one or both of a first circuit responsive to motion of the control button, and a second circuit responsive to a coupling between the fingerprint and a surface of the display element. The fingerprint sensor is disposed closer to the fingerprint than the responsive element. The control button or display component may include an anisotropic dielectric material, for example sapphire.
176 Citations
22 Claims
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1. An assembly for an electronic device, comprising:
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a device housing including an opening; a fingerprint sensor; plastic molded above the fingerprint sensor, the plastic defining a button structure disposed to fit in the opening; a switch stacked vertically below the fingerprint sensor; and a support plate positioned between the fingerprint sensor and the switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification