Jig and manufacturing method for fingerprint identification module

• US 10,235,549 B2
• Filed: 07/17/2017
• Issued: 03/19/2019
• Est. Priority Date: 03/03/2017
• Status: Active Grant

• Current Assignee: Primax Electronics Limited
• Original Assignee: Primax Electronics Limited
• Inventors: Hsu, Mao-Hsiu, Ting, Kuan-Pao
• Primary Examiner(s): Seth, Manav
• Application Number:
  US15/651,841
• Publication Number:
  US 20180253584A1
• Time in Patent Office: 610 Days
• CPC Class Codes: G06V 40/13 Sensors therefor
• CPC Class Codes: G06V 40/1365 Matching; Classification

Abstract

A jig for a fingerprint identification module includes a base, a top cover and a rotating shaft. The rotating shaft is connected with the base or the top cover. The base includes plural accommodation spaces. A circuit board and a fingerprint sensor fixed on the circuit board are accommodated within the corresponding accommodation space. The top cover is fixed on the base in response to a magnetic attraction force. The top cover includes plural perforations corresponding to the plural accommodation spaces. When an output element is penetrated through a specified perforation, an isolation material is outputted from the output element and placed on a periphery of a junction between the circuit board and the fingerprint sensor.

Claims

1. A jig for a fingerprint identification module, the jig comprising:

a base comprising plural accommodation spaces, wherein a circuit board and a fingerprint sensor fixed on the circuit board are accommodated within the corresponding accommodation space;

a top cover comprising plural perforations corresponding to the plural accommodation spaces, wherein when an output element is penetrated through a specified perforation of the plural perforations corresponding to the circuit board and moved within the specified perforation, an isolation material is outputted from the output element and placed on a periphery of a junction between the circuit board and the fingerprint sensor, wherein the top cover is fixed on the base in response to a magnetic attraction force; and

a rotating shaft connected with the base or the top cover, wherein when the rotating shaft is driven and rotated, the base and the top cover fixed on the base are synchronously rotated.

2. The jig according to claim 1, wherein the base further comprises a first coupling material, and the top cover further comprises a second coupling material, wherein the magnetic attraction force is generated by the first coupling material and the second coupling material.

3. The jig according to claim 1, wherein the fingerprint sensor is a fingerprint sensing chip.

4. The jig according to claim 1, wherein the isolation material is glue, and the glue is outputted from the output element and dispensed on the periphery of the junction between the circuit board and the fingerprint sensor so as to isolate moisture or dust.

5. The jig according to claim 4, wherein after the isolation material is dispensed on the periphery of the junction between the circuit board and the fingerprint sensor within the corresponding accommodation space, the jig is baked.

6. The jig according to claim 1, wherein the base further comprises a first positioning part, and the top cover further comprises a second positioning part, wherein the plural perforations of the top cover are aligned with the corresponding accommodation spaces of the base according to the first positioning part and the second positioning part.

7. The jig according to claim 6, wherein one of the first positioning part and the second positioning part is a positioning post, and the other of the first positioning part and the second positioning part is a positioning hole.

8. A manufacturing method of a fingerprint identification module, the manufacturing method comprising steps of:

placing plural circuit boards in plural accommodation spaces of a base, wherein plural fingerprint sensors are fixed on the plural circuit boards, respectively;

fixing a top cover on the base in response to a magnetic attraction force, wherein plural perforations of the top cover are aligned with the corresponding accommodation spaces of the base;

penetrating an output element through a first perforation of the plural perforations of the base, moving the output element, and placing an isolation material on a periphery of a junction between the circuit board and the fingerprint sensor corresponding to the first perforation so as to isolate moisture or dust;

rotating the top cover and the base synchronously; and

penetrating the output element through a second perforation of the plural perforations of the base, moving the output element, and placing the isolation material on a periphery of a junction between the circuit board and the fingerprint sensor corresponding to the second perforation so as to isolate moisture or dust.

9. The manufacturing method according to claim 8, further comprising steps of:

baking the substrate; and

removing the plural circuit boards from the plural accommodation spaces.

10. The manufacturing method according to claim 8, wherein the base further comprises a first coupling material, and the top cover further comprises a second coupling material, wherein the magnetic attraction force is generated by the first coupling material and the second coupling material.

11. The manufacturing method according to claim 8, wherein the fingerprint sensor is a fingerprint sensing chip.

12. The manufacturing method according to claim 8, wherein the isolation material is glue, and the glue is outputted from the output element and dispensed on the periphery of the junction between each circuit board and the corresponding fingerprint sensor.

13. The manufacturing method according to claim 8, wherein the base further comprises a first positioning part, and the top cover further comprises a second positioning part, wherein the plural perforations of the top cover are aligned with the corresponding accommodation spaces of the base according to the first positioning part and the second positioning part.

14. The manufacturing method according to claim 13, wherein one of the first positioning part and the second positioning part is a positioning post, and the other of the first positioning part and the second positioning part is a positioning hole.