Cardinal Law Group LLC
Process for making a low-profile choke
A process for making a low-profile choke includes steps of: providing an etchable substrate; applying a masking layer on the etchable substrate; etching the etchable substrate through perforated patterns of the masking layer to permit the etchable substrate to be formed with an array of recessed patterns, each of which includes a core recess portion and a coil-patterned recess portion; filling a magnetic material and a conductive material respectively into the core recess portion and the coil-patterned recess portion of each of the recessed patterns to form in the etchable substrate a plurality of magnetic cores and a plurality of conductive coils; and slicing the etchable substrate to obtain a plurality of choke bodies.
SIWARD CRYSTAL TECHNOLOGY CO., LTD.
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Wei-Chih Shih-Ying Yu-Hsuan Wei-Lin Yen-Hao Wen-Kuan
Hsu Huang Peng Wang Tseng Huang