FORMATION OF SILICON MICROMIRRORS BY ANISOTROPIC ETCHING

被引:4
作者
CORNELY, RH [1 ]
MARCUS, RB [1 ]
机构
[1] BELL COMMUN RES INC,RED BANK,NJ 07701
关键词
D O I
10.1016/0924-4247(91)80021-G
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Vertical silicon structures, with dimensions of the order of 30-mu-m deep, 40-mu-m wide and 0.1-4-mu-m thick, are made by anisotropic etching of {100} wafers using SiO2 etch masks and EDP and KOH etchants. The mirror structures are to reflect 15-mu-m diameter optical beams. Two approaches for solving the serious problem of convex corner etching associated with the formation of micron-sized structures have been studied: one involves sacrificial structures and the other involves growth of a vertical oxide.
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页码:241 / 250
页数:10
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