参考文献

Zheng, Zhongli; Carter, Mary-Beth; Liao, YuSheng; Sun, Lihong; Kirkovsky, Leonid; Mrose, Susan; Hsu, Yen-Ming; Thomas, David; Shipps JR., Gerald W.; Jindal, Satish; Lenz, George R.; Nash, Huw M. Patent: US2004/67982 A1, 2004 ; Location in patent: Page/Page column 22-23 ;