waimaoquan.alibaba.com
2009-11-14 · The sizeswe require are 4.27mm, 5.17mm, 5.5mm, 5.85mm,6.95mm,7.5mm, 8.26 mm,8.80mm Hello, > > We have Canon 3000i4 stepper. Wewant to test our machine if we pattern 0.25 micron by using phaseshift mask. So we need a phase shift mask which contains 0.25contac holes and lines to test our machine.We would be glad if youinform us about if
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