参考文献

Jih, Ru Hwu; Tsay, Shwu Chen; Magendran, Balaachary; Chakraborty, Subhasish K.; Das, Asish R.; Sheu, Kuen Wang; Shu, Chun Mei; Lu, Chin Kun; Chang, Wei Min Patent: US2007/15939 A1, 2007 ; Location in patent: Page/Page column 2; 4 ;