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MEMSnet Home: MEMS-Talk: The residue after etching SU-8 by CF4
The residue after etching SU-8 by CF4
2004-03-16
YI-CHUN CHEN
2004-03-16
Jacques Jonsmann
The residue after etching SU-8 by CF4
Jacques Jonsmann
2004-03-16
The gray/black residues you see are antimonyoxide, the remains of the PAG in the
SU-8.
I use ultrasound in DI water to get complete removal of the residue powder.

Jacques Jonsmann


________________________________

Fra: [email protected] på vegne af YI-CHUN CHEN
Sendt: ti 16-03-2004 22:01
Til: [email protected]
Emne: [mems-talk] The residue after etching SU-8 by CF4



Dear all,

I tried to remove SU-8 by O2 plasma with adding a little bit CF4 but there are
some gray residues left after it was etched. The experiment condition I used is
80% O2 with 20% CF4 at 300 W in 300 mtorr. These residues can be scratched by
the razor but cannot be blew away by nitrogen gun. I also found that after
etching the height of SU-8 section is little lower than that of the other
sections (glass slide). I am not sure are these residues the product of glass
etching or just remnant of SU-8?
Could anyone give me some suggestions to remove these residues without making
damages to the substrate?
Your kind respond will be highly appreciated!

Ted



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