US 12,135,855 B2
Electronic device having a biometric input system including a composite cover element
Andrew Deng, San Jose, CA (US); Timothy D. Koch, San Jose, CA (US); Hui-Shan Chang, Taoyuan (TW); Andrew W. Joyce, San Jose, CA (US); Henry H. Yang, Cupertino, CA (US); Ran Xu, Cupertino, CA (US); Patrick E. O'Brien, Pleasanton, CA (US); Yu Hsuan Chao, New Taipei (TW); Dale Setlak, Merritt Island, FL (US); and Giovanni Gozzini, Berkeley, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on May 26, 2023, as Appl. No. 18/202,620.
Claims priority of provisional application 63/356,447, filed on Jun. 28, 2022.
Prior Publication US 2023/0418421 A1, Dec. 28, 2023
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0445 (2019.05) [G06F 3/04144 (2019.05)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
an enclosure;
a display positioned within the enclosure; and
a biometric button assembly positioned along a side of the display and comprising:
a carrier structure configured to translate in response to a user press input;
a switch assembly configured to detect a translation of the carrier structure in response to the user press input;
a biometric sensing component coupled to the carrier structure and comprising an array of sensing elements configured to sense a fingerprint in response to the user press input; and
a dielectric coating at least partially encapsulating the array of sensing elements of the biometric sensing component, defining an input surface for the biometric button assembly, and formed from a composite material comprising:
oxide particles having a mean particle size greater than or equal to 50 nm and less than 1 micrometer; and
a binder comprising a thermoset polymer material.