IP Library Granted Patent US 12701655
Granted Patent B2
US 12701655 · App. 18/878,253 · Granted Aug 4, 2026

Structure body and wiring board

Inventors: Shoya Sekiguchi (Hiki-gun, JP); Shoko Mishima (Hiki-gun, JP); Yuya Fukata (Hiki-gun, JP); Nobuhiro Ishikawa (Hiki-gun, JP)
Assignee: TAIYO HOLDINGS CO., LTD.
H05K1/0373B32B3/10B32B3/18H05K2201/0104H05K2201/0206
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Quick Facts
Patent No.
US 12701655
App. No.
18/878,253
Granted
Aug 4, 2026
Kind
B2
Abstract

A structure body, including: an insulator, and a conductor layer provided on a surface of at least a portion of the insulator, where: the insulator includes a resin and a filler, and at least one conductor layer component of the conductor layer is present between at least one of the filler and the resin from an interface between the insulator and the conductor layer, and is connected to the conductor layer.

Claims (28)

1 . A structure body, comprising:

an insulator; and

a conductor layer on a surface of at least a portion of the insulator,

wherein the insulator comprises a resin and a plurality of fillers, and at least one conductor layer component of the conductor layer is present between at least one of the plurality of fillers and the resin from an interface between the insulator and the conductor layer, and is connected to the conductor layer, and

wherein a thin film covering the plurality of the fillers is formed by the at least conductor layer component present between the fillers and the resin.

2 . The structure body according to claim 1 , wherein each filler of the plurality of the fillers has an average particle diameter of 1.0 μm or less.

3 . The structure body according to claim 1 , wherein a depth of the conductor layer component entering between the plurality of the fillers and the resin from the interface is from 1.5 times to 22 times an average particle diameter of the filler.

4 . The structure body according to claim 1 , wherein the filler is a metal oxide.

5 . The structure body according to claim 1 , wherein the at least one conductor layer component is a metal component.

6 . A wiring board comprising the structure body according to claim 1 .

7 . The structure body according to claim 1 , wherein the resin is a hydrophobic resin.

8 . The structure body according to claim 1 , wherein the resin comprises a polyphenylene ether resin or an epoxy resin.

9 . The structure body according to claim 1 , wherein the resin does not comprise an elastomer.

10 . The structure body according to claim 1 , wherein the filler is selected from the group consisting of an inorganic filler, a metal oxide, a metal hydroxide, a filler having a perovskite-type crystal structure, and a combination thereof.

11 . A structure body, comprising:

an insulator; and

a conductor layer on a surface of at least a portion of the insulator,

wherein the insulator comprises a resin and a plurality of fillers, and at least one conductor layer component of the conductor layer is present between at least one of the plurality of fillers and the resin from an interface between the insulator and the conductor layer, and is connected to the conductor layer, and

wherein a depth of the conductor layer component entering between the filler and the resin from the interface is from 1.5 times to 22 times an average particle diameter of the filler.

12 . The structure body according to claim 11 , wherein each filler of the plurality of the fillers has an average particle diameter of 1.0 μm or less.

13 . The structure body according to claim 11 , wherein the filler is a metal oxide.

14 . The structure body according to claim 11 , wherein the at least one conductor layer component is a metal component.

15 . A wiring board comprising the structure body according to claim 11 .

16 . The structure body according to claim 11 , wherein the resin is a hydrophobic resin.

17 . The structure body according to claim 11 , wherein the resin comprises a polyphenylene ether resin or an epoxy resin.

18 . The structure body according to claim 11 , wherein the resin does not comprise an elastomer.

19 . The structure body according to claim 11 , wherein the filler is selected from the group consisting of an inorganic filler, a metal oxide, a metal hydroxide, a filler having a perovskite-type crystal structure, and a combination thereof.

20 . The structure body according to claim 11 , wherein a thin film covering the plurality of the fillers is formed by the at least conductor layer component present between the fillers and the resin.