Connecting-point-free metal sheet etching method and metal element group manufactured with same

Abstract

The invention discloses a connecting-point-free metal sheet etching method and a metal element group manufactured with the same. According to the method, single-face etching is adopted, arrangement of connecting points of a metal sheet to be etched is not needed, multiple formed metal elements are transferred onto a protection film through an anti-corrosion cure adhesive after film pressing, exposure, developing and etching are conducted on the metal sheet, and then the metal element group easy to peel is formed to be used in the later stage.

Description

technical field [0001] The invention relates to a thin metal plate etching method, in particular to a metal thin plate etching method without connection points and a metal unit group made by the method. Background technique [0002] The VCM elastic (reed) sheet used by the existing VCM voice coil motor or the elastic (reed) sheet used for OIS anti-shake, such as figure 1 and Figure 1A As shown, the metal sheet is formed by precise metal etching, and the metal sheet 90 of appropriate size is selected, and it is made by double-sided lamination, double-sided exposure, development, double-sided etching and other processes; generally using double-sided etching method The VCM spring (spring) sheet set or the OIS anti-shake use spring (spring) sheet, in order to make the products can be produced or sold in groups, usually a frame 91 is left after etching, so that the etched metal unit 92 (VCM or OIS shrapnel) are arranged in the frame 91 in an array or in an array, and since b...

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Problems solved by technology

[0003]However, this kind of finished metal unit 92 with connection point 93 is in the process of providing subsequent users (such as manufacturers of voice coil motors or OIS anti-shake shrapnel) In the middle, because there is no suitable carrier, it is easy to break during the transportation process, and the user must spend a lot of work on the process of slicing before use, which is extremely inconvenient in use; such as cutting off by laser cutting The connection point is 93, but because the shape of the VCM or OIS shrapnel is different, the connection points are also different. If you want to carry out the fragmentation process with an automated process, you need to have various specific automation equipment, which is extremely expensive; or you can cut it manually However, it is very easy to cause damage to the VCM or OIS shrapnel in the process of slicing, which will increase the production cost and cause waste of materials.

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