Flexible printed circuit board

US2018192511A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2018192511-A1
Application numberUS-201615738301-A
CountryUS
Kind codeA1
Filing dateJun 22, 2016
Priority dateJun 24, 2015
Publication dateJul 5, 2018
Grant date

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A flexible printed circuit board according to an aspect of the present invention includes a base film having insulating properties and a conductive pattern laminated to one surface side of the base film. The conductive pattern forms part of a circuit and includes at least one fuse portion having a cross section smaller than the other part. The flexible printed circuit board includes at least one opening passing through front and rear surfaces on at least one of the right and left sides of the fuse portion in a two-dimensional view.

First claim

Opening claim text (preview).

1 . A flexible printed circuit board comprising: a base film having insulating properties; and a conductive pattern laminated to one surface side of the base film, the conductive pattern forming part of a circuit and including at least one fuse portion having a cross section smaller than the other part, wherein the flexible printed circuit board comprises at least one opening portion passing through front and rear surfaces on at least one of right and left sides of the fuse portion in a two-dimensional view. 2 . The flexible printed circuit board according to claim 1 , wherein the flexible printed circuit board comprises a pair of the opening portions on both right and left sides of the fuse portion in a two-dimensional view. 3 . The flexible printed circuit board according to claim 1 , wherein the opening portion has a protruding portion close to a center region of a side edge of the fuse portion in a two-dimensional view. 4 . The flexible printed circuit board according to claim 3 , wherein the protruding portion has an end edge parallel to the side edge of the fuse portion. 5 . The flexible printed circuit board according to claim 3 , wherein there is a distance between the side edge of the fuse portion and the protruding portion of the opening portion in a two-dimensional view. 6 . The flexible printed circuit board according to claim 3 , wherein the fuse portion has a line width smaller than a wiring portion in front and back of the fuse portion, and a shortest distance in a width direction from a longitudinally central line of the circuit including the fuse portion to the protruding portion of the opening portion is smaller than an average distance in the width direction from the longitudinally central line to a side edge on the opening portion side of the wiring portion in front and back of the fuse portion, in a two-dimensional view. 7 . The flexible printed circuit board according to claim 1 , wherein the opening portion is disposed so as to cover the side edge of the fuse portion. 8 . The flexible printed circuit board according to claim 1 , further comprising an insulting layer to cover one surface side of a laminate including the base film and the conductive pattern.

Assignees

Inventors

Classifications

  • Flexible materials (H05K1/038 takes precedence; specific organic compositions are classified in H05K1/0313 and subgroups) · CPC title

  • Electrical insulation details, e.g. around high voltage areas · CPC title

  • Holes or slots in insulating substrate not used for electrical connections · CPC title

  • Overvoltage protection · CPC title

  • Fuse · CPC title

Patent family

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External sources

Frequently asked questions

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What does patent US2018192511A1 cover?
A flexible printed circuit board according to an aspect of the present invention includes a base film having insulating properties and a conductive pattern laminated to one surface side of the base film. The conductive pattern forms part of a circuit and includes at least one fuse portion having a cross section smaller than the other part. The flexible printed circuit board includes at least on…
Who is the assignee on this patent?
Sumitomo Electric Printed Circuits Inc, Autonetworks Technologies Ltd, Sumitomo Electric Industries, and 1 more
What technology area does this patent fall under?
Primary CPC classification H05K1/0293. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Jul 05 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).