The ITRS2001planned that in2004the90nm technology would be realized.In2003,Intel,AMD etc.semiconductor companies will adopt the90nm technology for batch pro-cess in MPU and logical device.Thus the ITRS Plan2001is one year ahead of time.90nm technology consists of193nm lithography technology,high k insulating material,high speed Cu interconnection technology,low k insulating material,strained Si technology and voltage isolation technology etc.193nm photolithography is the key technology for90nm batch proce...