公开(公告)号：DE2534801A1

公开(公告)日：1976-05-26

申请号：DE2534801

申请日：1975-08-05

Applicant: IBM

Inventor： JOHNSON JUN CLAUDE ,  KU SAN-MEI ,  LILLJA HAROLD VINELL ,  PAN EDWARD SHIH-TO

IPC: H01L21/266 ,  G03F7/40 ,  H01L21/00 ,  H01L21/56 ,  H01L21/265

Abstract: An improvement in the method of ion implantation into a semiconductor substrate through a photoresist mask wherein the photoresist mask is subjected to an RF gas plasma oxidation prior to the ion implantation step for a period sufficient to reduce the thickness of the photoresist layer. The ion implantation is then carried out through the treated photoresist mask.