公开(公告)号：US20180165495A1

公开(公告)日：2018-06-14

申请号：US15814467

申请日：2017-11-16

Applicant: Fingerprint Cards AB

Inventor： Martin GRIP ,  Karl LUNDAHL

IPC: G06K9/00 ,  G06F3/044 ,  G06F3/0488 ,  G06K9/20 ,  H01L23/00

CPC classification number: G06K9/0002 ,  G06F1/163 ,  G06F3/04164 ,  G06F3/044 ,  G06F3/0446 ,  G06F3/0488 ,  G06K9/00053 ,  G06K9/209 ,  H01L23/00 ,  H01L24/03 ,  H01L2224/04042 ,  H01L2224/48148 ,  H01L2224/48471

Abstract: The present invention relates to an electronic device, comprising a fingerprint sensor configured to capture an image of a fingerprint of a finger positioned on a sensor surface of the fingerprint sensor, the fingerprint sensor comprising a sensing array comprising a plurality of sensing elements, and connection pads for electrical connection to external fingerprint sensor control circuitry; and a protective plate for protecting the fingerprint sensor, the protective plate comprising conductive traces for connecting the fingerprint sensor to the external fingerprint sensor control circuitry, wherein the fingerprint sensor is attached to an underside of the protective plate and wherein the connection pads of the fingerprint sensor are mechanically and electrically connected to the conductive traces of the protective plate.

公开(公告)号：US20160358004A1

公开(公告)日：2016-12-08

申请号：US14997689

申请日：2016-01-18

Applicant: Fingerprint Cards AB

Inventor： Karl LUNDAHL

IPC: G06K9/00 ,  G03F7/16

CPC classification number: G06K9/00053 ,  G03F7/16 ,  G06K9/00 ,  G06K9/0002

Abstract: A fingerprint sensing device comprises 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 an adhesive; 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 adhesive is higher than a dielectric constant of the coating material; and a protective plate attached to the sensing chip by means of the adhesive. Another sensing device is disclosed, where the coating layer comprises trenches filled with an adhesive, and where the coating has a higher dielectric constant than the adhesive. Associated methods of manufacturing are also disclosed.

Abstract translation: 指纹感测装置包括感测芯片，其包括电容感测元件阵列。 感测装置包括布置在感测元件阵列的顶部上的涂层材料，涂层材料包括填充有粘合剂的多个空腔; 其中所述腔的位置对应于所述感测元件的位置，使得空腔的横截面面积覆盖相应感测元件的区域的至少一部分; 并且其中所述粘合剂的介电常数高于所述涂层材料的介电常数; 以及通过粘合剂附接到感测芯片的保护板。 公开了另一种感测装置，其中涂层包括填充有粘合剂的沟槽，并且其中涂层具有比粘合剂更高的介电常数。 还公开了相关的制造方法。

公开(公告)号：US20160210495A1

公开(公告)日：2016-07-21

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。