参考文献

Brinkman, John A.; Cheung, Adrian Wai-Hing; Firooznia, Fariborz; Guertin, Kevin Richard; Marcopulos, Nicholas; Qi, Lida; Racha, Jagdish Kumar; Sarabu, Ramakanth; Tan, Jenny; Tilley, Jefferson Wright Patent: US2007/270433 A1, 2007 ; Location in patent: Page/Page column 51 ; US 20070270433 A1