METHOD OF MANUFACTURING FINGERPRINT RECOGNITION HOME KEY

• US 20140360663A1
• Filed: 11/15/2013
• Published: 12/11/2014
• Est. Priority Date: 06/10/2013
• Status: Abandoned Application

• Current Assignee: Dreamtech Co., Ltd.
• Original Assignee: Dreamtech Co., Ltd.
• Inventors: KIM, Young-Ho, LEE, Ho-Jun
• Application Number:
  US14/081,081
• Publication Number:
  US 20140360663A1
• Time in Patent Office: Days
• US Class Current: 156/277
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1671 Special purpose buttons or auxiliary keyboards, e.g. retractable mini keypads, keypads or buttons that remain accessible at closed laptop G06F1/1666 takes precedence
• CPC Class Codes: G06F 3/0202 Constructional details or processes of manufacture of the input device
• CPC Class Codes: G06V 40/1329 Protecting the fingerprint sensor against damage caused by the finger
• CPC Class Codes: H01L 21/56 Encapsulations, e.g. encapsulation layers, coatings
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor

Abstract

Disclosed is a method of manufacturing a fingerprint recognition home key. In this method, an external member having a high dielectric constant is bonded to a film of a fingerprint recognition sensor, thereby increasing a fingerprint recognition rate, reducing manufacturing time, and providing a pleasant outer appearance. The method includes preparing an injection molded product having a shape of a home key and provided with a fingerprint recognition sensor, applying a bonding material or an adhesive to an upper side of a film of the fingerprint recognition sensor, and bonding an external member to the upper side of the film of the fingerprint recognition sensor to which the bonding material or the adhesive is applied.

Claims

1. A method of manufacturing an exterior member bonding type fingerprint recognition home key, comprising:

(a) preparing an injection molded product having a shape of a home key and provided with a fingerprint recognition sensor;

(b) applying a bonding material or an adhesive to an upper side of a film of the fingerprint recognition sensor; and

(c) bonding an external member to the upper side of the film of the fingerprint recognition sensor to which the bonding material or the adhesive is applied.

2. The method according to claim 1, wherein the applying a bonding material or an adhesive comprises applying the bonding material or the adhesive to the upper side of a film of the fingerprint recognition sensor, or attaching a double-sided tape to the upper side of a film of the fingerprint recognition sensor.

3. The method according to claim 1, wherein the external member comprises general glass or tempered glass.

4. The method according to claim 1, wherein the external member comprises general glass or tempered glass having a thickness of 40 μ

m to 100 μ

m.

5. The method according to claim 1, wherein the external member comprises sapphire glass.

6. The method according to claim 1, wherein the external member comprises sapphire glass having a thickness of 70 μ

m to 140 μ

m.

7. The method according to claim 1, wherein the external member comprises a plastic film or an injection molded thin film.

8. The method according to claim 1, wherein the external member comprises a plastic film or an injection molded thin film having a thickness of 30 μ

m to 130 μ

m.

9. The method according to claim 1, wherein the bonding an external member to the upper side of the film of the fingerprint recognition sensor comprises:

(c-1) preparing the external member; and

(c-2) color printing on a rear of the external member after deposition before bonding the external member to the upper side of the film of the fingerprint recognition sensor.

10. The method according to claim 9, wherein the upper side of the prepared external member has at least one shape selected from among a first shape that is generally flat, a second shape that protrudes upwardly, and a third shape that is recessed downwards.

11. The method according to claim 9, wherein the color printing is performed at least once.

12. The method according to claim 9, wherein the color printing is performed at least once, and the deposition and color print layer has a thickness of 2 μ

m to 30 μ

m.