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Suspension board with circuit and producing method thereof

專(zhuān)利號(hào)
US10028378B2
公開(kāi)日期
2018-07-17
申請(qǐng)人
NITTO DENKO CORPORATION(JP Osaka)
發(fā)明人
Hiroyuki Tanabe; Naohiro Terada; Yuu Sugimoto; Daisuke Yamauchi
IPC分類(lèi)
H05K1/05; H05K1/11; H05K1/18; G11B5/48; H05K3/40; H05K3/44; H05K1/02; H05K1/03
技術(shù)領(lǐng)域
insulating,layer,terminal,base,side,region,board,portion,in,pedestal
地域: Osaka

摘要

A suspension board with circuit includes a metal supporting board, a base insulating layer disposed at one side in a thickness direction of the metal supporting board, and a conductor layer disposed at one side in the thickness direction of the base insulating layer and including a connecting terminal electrically connected to a slider. The base insulating layer has a terminal region, when projected in the thickness direction, overlapped with at least the connecting terminal and a circumferential region not overlapped with the terminal region and around the terminal region, and the thickness of the terminal region is thicker than that of the circumferential region.

說(shuō)明書(shū)

Thus, the pedestal can be efficiently formed without separately adding a step, while the connecting terminal can be surely brought closer to the terminal of the slider.

The present invention [7] includes a method for producing a suspension board with circuit described in the above-described [5] including the steps of preparing the metal supporting board, forming the first base insulating layer so as to dispose the first terminal region-insulating layer at the one side in the thickness direction of the metal supporting board, the first circumferential region-insulating layer at the one side in the thickness direction of the metal supporting board, and the first base pedestal layer at the one side in the thickness direction of the metal supporting board, forming the second base insulating layer so as to dispose at least the second terminal region-insulating layer at the one side in the thickness direction of the first terminal region-insulating layer and the second base pedestal layer at the one side in the thickness direction of the first base pedestal layer, forming the conductor layer including the connecting terminal at the one side in the thickness direction of the base insulating layer, and forming the cover insulating layer exposing the connecting terminal and covering the conductor layer so as to dispose the cover pedestal layer at the one side in the thickness direction of the second base pedestal layer.

According to the method, the suspension board with circuit in which the thickness of the terminal region is thicker than that of the circumferential region, and the connecting terminal can be brought closer to the terminal of the slider in the thickness direction can be produced.

權(quán)利要求

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