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FINGERPRINT SENSING DEVICE WITH HETEREOGENEOUS COATING STRUCTURE COMPRISING A MOLD
专利权人:
发明人:
申请号:
EP16821726.3
公开号:
EP3304420A1
申请日:
2016.06.02
申请国别(地区):
EP
年份:
2018
代理人:
摘要:
The invention relates to a fingerprint sensing device comprising a sensing chip comprising an array of capacitive sensing elements. The sensing device comprises a coating material arranged in a layer on top of the array of sensing elements, the coating material comprising a plurality of cavities filled with a mold material wherein locations of the cavities correspond to locations of the sensing elements, such that a cross-section area of a cavity covers at least a portion of an area of a corresponding sensing element and wherein a dielectric constant of the mold material is higher than a dielectric constant of the coating material. The invention also relates to a method for manufacturing such a device.
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中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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