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Electronic device

專利號
US11617265B1
公開日期
2023-03-28
申請人
RENESAS ELECTRONICS CORPORATION（JP Tokyo）
發(fā)明人
Kazuaki Tsuchiyama; Tatsuaki Tsukuda
IPC分類
H05K1/11; H05K1/14; H01L23/538; H01L25/065
技術(shù)領域
fpc1,terminal,wiring,44s1,signal,pcb1,substrate,in,terminals,44g1
地域： Tokyo

摘要

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.

說明書

In addition, for example, the number of signal transmission paths is not limited to two, and as a modification example, there may be a case where the substrate is formed of one signal transmission path constituted by the signal terminal 44s1 and the signal wiring 42s1 shown in FIG. 4 and the signal terminal 45s1 shown in FIG. 3, with the signal terminal 44s2 and the signal wiring 42s2 shown in FIG. 4 and the signal terminal 45s2 shown in FIG. 3 removed. In this case, the reference potential wiring 42g1 to which a reference potential is supplied is arranged on both sides of the signal wiring 42s1, and the reference potential terminal 44g1 is arranged on both sides of the signal terminal 44s1.

As another modification example, there may be a case where three or more signal transmission paths are provided.

權(quán)利要求

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