IP Library › Granted Patent US 12,546,812
Granted Patent B2
US 12,546,812 · App. 18/485,252 · Granted Feb 10, 2026

Test device capable of testing micro LED and manufacturing method thereof

Inventors: Bum Mo Ahn (Gyeonggi-do, KR); Seung Ho Park (Gyeonggi-do, KR); Young Heum Eom (Gyeonggi-do, KR)
Assignee: POINT ENGINEERING CO., LTD.
G01R31/2635G01R1/0416H05K1/118H05K2201/10106
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Quick Facts
Patent No.
US 12,546,812
App. No.
18/485,252
Granted
Feb 10, 2026
Kind
B2
Abstract

Proposed are a test device and a manufacturing method of the test device capable of testing a test object that is provided with an electrode which has a size and/or a pitch distance ranging from 1 to 100 micrometers (μm).

Claims (26)

1 . A test device comprising:

an insulation member having a flat plate shape; and

a conductive part integrally provided with a wiring part that is provided inside the insulation member and with a connection part which is provided outside the insulation member and which is configured to be connected to a test object,

wherein the insulation member is an anodic oxide film in which a base metal is anodized and then the base metal is removed.

2 . The test device of claim 1 , wherein a thickness of the conductive part is equal to or less than a thickness of the insulation member.

3 . The test device of claim 1 , wherein the insulation member is a patternable material.

4 . The test device of claim 1 , wherein the conductive part is provided such that a plurality of conductive parts is formed, the connection parts of the conductive parts adjacent to each other comprise a first unit connection part and a second unit connection part that are having shapes left and right symmetrical with each other, and a pitch distance between a tip end part of the first unit connection part and a tip end part of the second unit connection part is smaller than a pitch distance between a base end part of the first unit connection part and a base end part of the second unit connection part.

5 . The test device of claim 1 , wherein the connection part comprises:

a first unit connection part configured to be connected to a first electrode of the test object; and

a second unit connection part configured to be connected to a second electrode of the test object, and

the first unit connection part and the second unit connection part have shapes left and right symmetrical with each other.

6 . The test device of claim 1 , wherein the wiring part comprises a bonding pad to which a circuit part is bonded.

7 . The test device of claim 1 , wherein the conductive part is provided with a plurality of conductive parts, and a pitch distance of the wiring parts at a side of the connection part is smaller than a pitch distance of the wiring parts at a side of a bonding pad.

8 . The test device of claim 1 , wherein the insulation member has a thickness of equal to or more than 10 μm and equal to or less than 200 μm.

9 . A test device comprising:

at least one insulation member having a flat plate shape in which an area of an x-y plane is larger than a thickness in a z direction; and

at least one conductive part having a thickness equal to or less than the thickness of the insulation member, the conductive part having a first portion mounted inside the insulation member and having a second portion that is positioned by extending outward to the insulation member,

wherein the at least one insulation member is a plurality of insulation members, and the at least one conductive part is a plurality of conductive part;

wherein the test device is configured such that the plurality of insulation member is bonded to each other by a bonding part; and

wherein a thickness in the z direction of the bonding part affects a pitch distance between a plurality of conductive parts.

10 . A test device comprising:

at least one insulation member having a flat plate shape that has a first surface of an x-y plane and a second surface of the x-y plane facing the first surface; and

at least one conductive part having at least a portion provided between the first surface and the second surface such that the portion is positioned on a penetration part that extends inward from any one side portion of the insulation member, the conductive part having a remaining portion positioned by extending outward to the insulation member and being configured to be connected to a test object,

wherein the at least one insulation member is a plurality of insulation members, and the at least one conductive part is a plurality of conductive part;

wherein the test device is configured such that the plurality of insulation members is bonded to each other by a bonding part; and

wherein a thickness in a z direction of the bonding part affects a pitch distance between the plurality of conductive parts.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2023
From: AHN, BUM MO; PARK, SEUNG HO; EOM, YOUNG HEUM
To: POINT ENGINEERING CO., LTD.
Reel/Frame 065189/0599 →
Priority Claims (1)
KR 10-2022-0129443 · Oct 11, 2022 · national
Continuity (1)
Related Publication 20240118335A1 · Apr 11, 2024
References Cited (5)
US 9842782B2 · Chen et al. · 2017 [cited by applicant]
US 20020057099A1 · Esashi · 2002 [cited by examiner]
US 20060094162A1 · Yabushita · 2006 [cited by examiner]
US 20110043239A1 · Tomita · 2011 [cited by examiner]
KR 1019133550000 · 2018 [cited by applicant]
Cited By (1)
US 12,704,527