公开(公告)号：US09582704B2

公开(公告)日：2017-02-28

申请号：US14911573

申请日：2014-08-22

Applicant: Fingerprint Cards AB

Inventor： Pontus Jägemalm ,  Karl Lundahl ,  Mats Slottner ,  Hans Thörnblom ,  Ojie Julian

IPC: G06K9/00 ,  H01L23/00

CPC classification number: G06K9/0002 ,  H01L24/03 ,  H01L24/05 ,  H01L24/09 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/033 ,  H01L2224/0345 ,  H01L2224/03462 ,  H01L2224/035 ,  H01L2224/04042 ,  H01L2224/05022 ,  H01L2224/05624 ,  H01L2224/05647 ,  H01L2224/06179 ,  H01L2224/48091 ,  H01L2224/48148 ,  H01L2224/48465 ,  H01L2224/48471 ,  H01L2224/49175 ,  H01L2224/85186 ,  H01L2924/00014 ,  H01L2924/10155 ,  H01L2924/10157 ,  H01L2924/181 ,  H01L2224/45099 ,  H01L2924/00 ,  H01L2924/00012 ,  H01L2224/4554

Abstract: A fingerprint sensing device comprising sensing circuitry comprising a plurality of sensing elements, each sensing element comprising a sensing structure arranged in a sensing plane and facing a surface of the capacitive fingerprint sensing device, each of the sensing elements being configured to provide a signal indicative of an electromagnetic coupling between the sensing structure and a finger placed on the surface of the fingerprint sensing device; and a plurality of connection pads electrically connected to the sensing circuitry for providing an electrical connection between the sensing circuitry and readout circuitry, wherein each of the connection pads is separately recessed in relation to the sensing plane such that each connection pad has a floor in a floor plane, and wherein each connection pad is separated from an adjacent connection pad through a portion of the sensing device being elevated in relation to the floor plane.

Abstract translation: 一种指纹感测装置，包括感测电路，其包括多个感测元件，每个感测元件包括布置在感测平面中并面向电容式指纹感测装置的表面的感测结构，每个感测元件被配置为提供指示 感测结构和放置在指纹感测装置的表面上的手指之间的电磁耦合; 以及电连接到感测电路的多个连接焊盘，用于在感测电路和读出电路之间提供电连接，其中每个连接焊盘相对于感测平面分别凹陷，使得每个连接焊盘具有位于 底板平面，并且其中每个连接垫通过相对于底板平面升高的感测装置的一部分与相邻的连接垫分离。

公开(公告)号：US10325133B2

公开(公告)日：2019-06-18

申请号：US15807139

申请日：2017-11-08

Applicant: Fingerprint Cards AB

Inventor： Farzan Ghavanini ,  Pontus Jägemalm

IPC: G06K9/28 ,  G06K9/00 ,  G06F3/041 ,  H01L27/32 ,  G06F3/044

Abstract: A capacitive fingerprint sensing device for sensing a fingerprint pattern of a finger can comprise a plurality of sensing elements. Each sensing element comprises a protective dielectric top layer to be touched by the finger; a first electrode comprising an optically transparent electrically conductive sensing structure arranged underneath the top layer; fingerprint sensing circuitry connected to the first electrode and configured to provide an analog sensing signal indicative of a distance between the finger and the sensing structure, a second electrode arranged underneath the first electrode; an organic light emitting layer arranged between the first and second electrodes; display element control circuitry connected to the second electrode and configured to control a display element comprising the first and second electrodes and the organic light emitting layer; and a switching mechanism configured to switch the sensing element between a fingerprint sensing mode and a display mode.