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B0101>
Has anyone used dry film photoresist?
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azonenberg>
Yes, but not at these feature scales
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azonenberg>
only on PCBs
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azonenberg>
i did hit 5um features with dry film on copper PCB experimentally using projection lithography
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azonenberg>
but was unable to etch the 35um copper layer obviously :P
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B0101>
I found that dry film photoresist is much cheaper than liquid based photoresist
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B0101>
Well, I'm not sure if I can be used for making working devices
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azonenberg>
It can be used but you have to know some of the quirks
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azonenberg>
for example it stays flat when you apply it
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azonenberg>
which means it won't have step coverage
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azonenberg>
this may be good or bad depending on the application
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B0101>
ok, thanks for your info
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