Dear College, I'm designing the test mask for our new DRIE tool. I want to know the design rule of comb drive? For SOI wafer with 100um (50um) top Si. Can I use 7um (4um) for width of comb finger? Can I get even smaller tolerance for gap between comb fingers, say, 2um? Please give me your comment as soon as possible, Thanks in advance, MEMS Lab. Mechanical Engineering Dept. Univ. of Maryland College Park MD 20742 ------------------ Tel: 301-405-2981 301-403-8389 Fax: 301-403-2976 Email: jingliu@umd.edu ----------------------------