Patent ID: 9079264
Filing Date: 2015-07-14
Classification: B23K,C04B,H01L,H05K,Y10T

Abstract:
1. A method of manufacturing a power module substrate, comprising: radiating energy light to the surface of a ceramic base material including silicon to form scribe lines in the surface of the ceramic base material; performing a surface treatment selected from a group consisting of a blast process of blowing powder, a plasma etching using gas including fluoride ions, and a reactive ion etching using gas including fluoride ions on the ceramic base material having the scribe lines formed therein; dividing the ceramic base material along the scribe lines to form a ceramic substrate; and bonding metal members to the ceramic substrate, wherein a concentration of a silicon oxide and a silicon composite oxide in the surface of the ceramic base material having the scribe lines formed therein is less than or equal to 2.7 Atom %.