参考文献

Blanc, Jean-Baptiste; Chen, Li; Firooznia, Fariborz; Gillespie, Paul; Goodnow, JR., Robert Alan; He, Yun; Lin, Tai-An; So, Sung-Sau; Yun, HongYing; Zhang, Zhenshan Patent: US2010/41714 A1, 2010 ; Location in patent: Page/Page column 18 ; US 20100041714 A1