发明名称 METHOD OF PROCESSING SEMICONDUCTOR WAFERS TO BUILD IN BACK SURFACE DAMAGE
摘要 <p>A method of processing a semiconductor wafer sliced from a single-crystal ingot includes lapping front and back surfaces of the wafer to reduce the thickness of the wafer and to improve the flatness of the wafer. The front surface is subjected to fine grinding to reduce the damage on the front surface while leaving damage on the back surface intact. The front and back surfaces are simultaneously polished to improve the flatness of the wafer and to reduce wafer damage on the front and back surfaces. The wafer damage remaining on the back surface is greater than the wafer damage on the front surface. The wafer damage remaining on the back surface facilitates gettering.</p>
申请公布号 WO2000036637(A1) 申请公布日期 2000.06.22
申请号 US1999027513 申请日期 1999.11.19
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