Patent ID: 8113917
Filing Date: 2012-02-14
Classification: B24D

Abstract:
1. A fabricating method for forming a grinding device having a micro ball comprising steps of: (a) forming a micro device shaft of a requested size and with a peak point at a center of a front end surface of said micro device shaft; (b) inputting a high-density power to melt said peak point of said micro device shaft and solidifying said melted peak point to obtain a micro ball having a diameter larger than the device shaft and the micro ball having a core material and an arc degree more than 180 degrees; (c) obtaining an electroplating trough, said electroplating trough having a compound electroplating solution, said electroplating solution having an amount of grinding particles and a base material wherein said base material is selected from a group consisting of Cu, Al, Ag, Zn and an alloy of any of above said metals; and (d) processing a composite electroplating to deposit said grinding particles and base material on a surface of said micro device shaft to obtain a composite electroplated layer comprising the grinding particles and the base material.