参考文献

Altenbach, Robert J.; Black, Lawrence A.; Chang, Sou-Jen; Cowart, Marlon D.; Faghih, Ramin; Gfesser, Gregory A.; Ku, Yi-yin; Liu, Huaqing; Lukin, Kirill A.; Nersesian, Diana L.; Pu, Yu-ming; Sharma, Padam N.; Bennani, Youssef L. Patent: US2004/92521 A1, 2004 ; Location in patent: Page/Page column 30 ; US 20040092521 A1