IP Library Granted Patent US 8,178,968
Granted Patent B2
US 8,178,968 · App. 12/207,565 · Granted May 15, 2012

Electronic component

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Quick Facts
Patent No.
US 8,178,968
App. No.
12/207,565
Granted
May 15, 2012
Kind
B2
Abstract

An electronic component includes: an active surface; a plurality of external connection terminals included in the active surface; a bump electrode disposed to the active surface, the bump electrode including: an internal resin formed on the active surface as a core; and a conductive film on a surface of the internal resin, the internal resin being formed in a nearly half-cylindrical shape having a transverse section of one of a nearly semicircular shape, a nearly semielliptical shape, and a nearly trapezoidal shape and extending orthogonal to the transverse section, the transverse section being orthogonal to the active surface; and a global wiring line disposed on the active surface and connecting between the plurality of external connection terminals, and at least one of the external connection terminals being electrically connected to the conductive film.

Claims (10)

1. An electronic component, comprising:

an active surface;

a plurality of external connection terminals included in the active surface;

a plurality of bump electrodes disposed on edges of the active surface, the bump electrodes each including:

an internal resin formed on the active surface as a core; and

a conductive film on a surface of the internal resin, at least one of the external connection terminals being electrically connected to the conductive film, and the internal resin being formed in a nearly half-cylindrical shape having a transverse section of one of a nearly semicircular shape, a nearly semielliptical shape, or a nearly trapezoidal shape and extending orthogonal to the transverse section, the transverse section being orthogonal to the active surface; and

a global wiring line disposed on the active surface inboard from the edges of the active surface and inboard from the bump electrodes, and connecting between at least a pair of the plurality of external connection terminals without use of the bump electrodes.

2. The electronic component according to claim 1 , the bump electrode disposed to the active surface including a first bump electrode and a second bump electrode, the internal resin including a first internal resin and a second internal resin, the first bump electrode having the first internal resin extending along a first direction and the second bump electrode having the second internal resin extending along a second direction different from the first direction.

3. The electronic component according to claim 1 , the conductive film of the bump electrode extending to a side adjacent to one of the plurality of external connection terminals and directly making contact with and electrically connecting to the one of the external connection terminals, and the one of the external connection terminals corresponding to the bump electrode.

4. The electronic component according to claim 1 , the conductive film of the bump electrode being made of gold.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 4, 2019
From: SEIKO EPSON CORPORATION
To: 138 EAST LCD ADVANCEMENTS LIMITED
Reel/Frame 050265/0622 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 10, 2008
From: HASHIMOTO, NOBUAKI
To: SEIKO EPSON CORPORATION
Reel/Frame 021506/0344 →