Patent ID: 7148131
Filing Date: 2006-12-12
Classification: H01L,Y10S

Abstract:
1. A method of implanting ions in a silicon substrate, comprising: advancing indium ions into said silicon substrate for a first time period; advancing boron ions into said silicon substrate for a second time period, wherein said time period for advancement of said indium ions is initiated prior to said time period for advancement of said boron ions; and annealing said silicon substrate using an annealing process, wherein said annealing process includes (i) heating said silicon substrate to a first temperature of about 550 degrees Celsius to about 1,000 degrees Celsius, after said advancement of said indium ions and said boron ions into said silicon substrate and (ii) cooling said silicon substrate to a second temperature which is less than said first temperature after said heating, wherein said silicon substrate is cooled, at a cooling rate greater than 35 degrees Celsius per second.