发明名称 METHOD FOR SIMULTANEOUSLY MACHINING BOTH SIDES OF DISC-SHAPED WORK PIECES, ESPECIALLY SEMICONDUCTOR WAFERS
摘要 <p>A process is provided for bilateral abrasive machining of wafer-like workpieces, especially semiconductor wafers. The process uses carrier disks in which the outer periphery on which the driving forces mesh, is made of a material having a tensile strength of at least 100 N/mm2, while in the area that comes into contact with the workpieces to be machined, there is provided a plastic material having an elasticity modulus of from 1.0 to 8.104 N/mm2.</p>
申请公布号 EP0208315(B1) 申请公布日期 1990.09.26
申请号 EP19860109420 申请日期 1986.07.10
申请人 WACKER-CHEMITRONIC GESELLSCHAFT FUER ELEKTRONIK-GRUNDSTOFFE MBH 发明人 BREHM, GERHARD, DR. DIPL.-ING. (TU);HALLER, INGO;ROTHENAICHER, OTTO, DIPL.-ING. (FH);LANGSDORF, KARL-HEINZ, ING. GRAD.
分类号 B24B37/08 主分类号 B24B37/08
代理机构 代理人
主权项
地址