The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 28, 2023

Filed:

Nov. 05, 2021
Applicant:

Renesas Electronics Corporation, Tokyo, JP;

Inventors:

Kazuaki Tsuchiyama, Tokyo, JP;

Tatsuaki Tsukuda, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/11 (2006.01); H05K 1/14 (2006.01); H01L 23/538 (2006.01); H01L 25/065 (2023.01);
U.S. Cl.
CPC ...
H05K 1/118 (2013.01); H01L 23/5384 (2013.01); H01L 25/0655 (2013.01); H05K 1/147 (2013.01);
Abstract

A width of each of a first signal terminal and a reference potential terminal formed in a first connection region of a core insulating layer constituting a flexible substrate is larger than a width of each of a first backside signal terminal and a backside reference potential terminal formed in a second connection region of the core insulating layer. In addition, a first separation distance between the first signal terminal and the reference potential terminal arranged adjacent to the first signal terminal is smaller than a second separation distance between the first backside signal terminal and the backside reference potential terminal arranged adjacent to the first backside signal terminal. An insulating film formed on a first surface of the core insulating layer at a position overlapping each of the first connection region and the second connection region covers the first connection region such that the second connection region is exposed.


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