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Method of manufacturing coil unit in thin film type for compact actuator

  • US 10,186,375 B2
  • Filed: 12/23/2016
  • Issued: 01/22/2019
  • Est. Priority Date: 07/14/2016
  • Status: Active Grant
First Claim
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1. A method of manufacturing a coil unit in a thin film type for a compact actuator, comprising:

  • a first step of laminating one or more coil layers on a substrate;

    a second step of forming a buffer layer on the one or more coil layers;

    a third step of forming an adhesive layer on the buffer layer to fix the coil unit on the adhesive layer and back-grinding a back surface of the substrate; and

    a fourth step of removing the adhesive layer and mounting the coil unit manufactured by cutting a portion of a side of the substrate on a surface of a flexible printed circuit board (“

    FPCB”

    ).

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