Abstract
Laminated templates electro-deposition (LTE) is a small-sized metallic-structure fabrication technique based on template-patterned depositing. Avoiding locally excessive electroplating at the template edge area has been proved crucial to this method. To improve deposition uniformity, auxiliary cathode and modulated double-pulse current were tried individually and assessed on their effects and efficiencies. By applying assisting cathode the deposition uniformity in plannar pattern depositing was significantly improved with an increased thickness ratio of edge to center for the plating sample. Pulse application, especially double-pulse was studied mainly on the proportion between anodic duty circle and cathodic duty circle. Through a group of optimized parameters, including current density ranging 8-10A/dm2, anodic and cathodic duty circle of respectively 80% and 30%, frequency 300HZ, a bulk of copper parts, section size 20×20mm and 4-7mm thick were produced with a well depositing quality.
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