Method for assembling a magnetic disk drive with a relaying flexible
printed circuit sheet
    312.
    发明授权
    Method for assembling a magnetic disk drive with a relaying flexible printed circuit sheet 有权
    用中继柔性印刷电路板组装磁盘驱动器的方法

    公开(公告)号:US6098271A

    公开(公告)日:2000-08-08

    申请号:US262386

    申请日:1999-03-04

    Abstract: A method for assembling a magnetic disk drive with a relaying flexible printed circuit sheet and an actuator includes shaping at least one metal bump to form a first terminal on the relaying flexible printed circuit sheet. The shape of the metal bump determines the amount of solder that will adhere to the metal bump. This amount must be adequate to form an efficient electrical and mechanical connection between the first terminal and a second terminal on the actuator. The next step is laying solder on the metal bump so that the adequate amount of solder remains on the metal bump and forms a solder layer. After the solder layer is formed on the metal bump, the first terminal is placed on the second terminal so that the solder is squeezed between the first and second terminals.

    Abstract translation: 一种用于组装具有中继柔性印刷电路板和致动器的磁盘驱动器的方法包括成形至少一个金属凸块以在中继柔性印刷电路板上形成第一端子。 金属凸块的形状确定将粘附到金属凸块的焊料的量。 该量必须足以在第一端子和致动器上的第二端子之间形成有效的电气和机械连接。 下一步是在金属凸块上铺设焊料,使得足够量的焊料保留在金属凸块上并形成焊料层。 在金属凸块上形成焊料层之后,将第一端子放置在第二端子上,使得焊料在第一和第二端子之间被挤压。

    Laminated film/metal structures
    316.
    发明授权
    Laminated film/metal structures 失效
    层压膜/金属结构

    公开(公告)号:US5949141A

    公开(公告)日:1999-09-07

    申请号:US898099

    申请日:1997-07-22

    Abstract: A process for producing laminated film/metal structures comprising bumped circuit traces on a non-conductive substrate wherein a copper sheet/polyimide film laminate is coated with resist on the exterior surfaces. The resist adjacent the polyimide film is selectively exposed and etched to expose an area of the polyimide film. The exposed polyimide film is etched to form vias through the polyimide film to the inner side of the copper sheet. The resist adjacent the polyimide film is stripped away and a metal bump is electrolytically plated through each via onto the copper sheet. A subsequent layer of resist is electrophoretically applied over the bumps. The resist material adjacent the copper sheet is then selectively exposed and etched to expose areas of the copper sheet. The exposed copper sheet is etched to form circuit traces and the remaining resist adjacent both the polyimide film and the copper sheet is stripped away.

    Abstract translation: 一种在非导电性基板上形成有凸起电路迹线的叠层膜/金属结构体的制造方法,其中铜片/聚酰亚胺膜层叠体在外表面上涂有抗蚀剂。 选择性地暴露和蚀刻邻近聚酰亚胺膜的抗蚀剂以暴露聚酰亚胺膜的区域。 蚀刻曝光的聚酰亚胺膜,以通过聚酰亚胺膜形成通孔至铜片的内侧。 剥离与聚酰亚胺膜相邻的抗蚀剂,并通过每个通孔将金属凸块电镀到铜片上。 随后的抗蚀剂层电泳施加在凸块上。 然后选择性地暴露和蚀刻邻近铜片的抗蚀剂材料以暴露铜片的区域。 将曝光的铜片蚀刻以形成电路迹线,并将与聚酰亚胺膜和铜片相邻的其余抗蚀剂剥离。

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