参考文献
Bolin, David Robert; Cheung, Adrian Wai-Hing; Firooznia, Fariborz; Hamilton, Matthew Michael; Li, Shiming; McDermott, Lee Apostle; Qian, Yimin; Yun, Weiya
Patent: US2007/123504 A1, 2007 ;
Location in patent: Page/Page column 18 ;
US 20070123504 A1