IP Library Granted Patent US 12666529
Granted Patent B2
US 12666529 · App. 18/514,628 · Granted Jun 23, 2026

External connection terminal

Inventors: Katsuyuki Nukui (Kanagawa, JP); Kazuhiro Hasegawa (Kanagawa, JP)
Assignee: FUJIFILM Corporation
H05K1/0254H05K1/118G06F3/04164G06F3/0446
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Quick Facts
Patent No.
US 12666529
App. No.
18/514,628
Granted
Jun 23, 2026
Kind
B2
Abstract

An external connection terminal capable of suppressing spark failure. The external connection terminal includes: a conduction portion that is electrically connected to an electronic circuit; and a non-conduction portion that is electrically insulated from the electronic circuit, in which the conduction portion and the non-conduction portion consist of a material including metal, and a ratio x of an occupied area of the non-conduction portion to an occupied area of the conduction portion in a plan view and a ratio y of a height of the non-conduction portion to a height of the conduction portion simultaneously satisfy x≥0.30, y≥1.00, and y≥−0.50×x+1.25.

Claims (72)

1 . An external connection terminal comprising:

a first portion that is electrically connected to an electronic circuit; and

a second portion that is electrically isolated from the electronic circuit,

wherein the first portion and the second portion consist of a material including metal, and

a ratio x of an occupied area of the second portion to an occupied area of the first portion in a plan view and a ratio y of a height of the second portion to a height of the first portion simultaneously satisfy

x

0.

3

0

,

y

1.

,

and

y

-

0

.

5

0

×

x

+

1.25

.

2 . The external connection terminal according to claim 1 ,

wherein the ratio x and the ratio y simultaneously satisfy

x

0

.

7

5

,

y

1.

,

and

y

-

0

.

5

0

×

x

+

1

.

6

7

5

.

3 . The external connection terminal according to claim 1 ,

wherein the second portion consists of at least one pattern.

4 . The external connection terminal according to claim 2 ,

wherein the second portion consists of at least one pattern.

5 . The external connection terminal according to claim 3 ,

wherein the at least one pattern of the second portion is surrounded by the first portion.

6 . The external connection terminal according to claim 4 ,

wherein the at least one pattern of the second portion is surrounded by the first portion.