Hi, John:
    In fact, my microchannel is quite big... many undercut (isotropic)
    need 400 mu deep (R), 700~800mu wide (2R)
    for electrophoresis...

    If any experiences to be share, I will appreciate it!
    Thanks!
Sincerely,
____________________________________________
Jerry Lee
(Jia-Hong Lee)
Insitute of Applied Mechanics,
National Taiwan University
Taipei, Taiwan, ROC
e-mail:
iamjhlee@email.com
r6543023@gauss.iam.ntu.edu.tw
"Try then error is better than no try"


>How deep, how wide, how long, how many?
>>I know is Cr/Au, but I really don't know if it can resist deept etching
>>about 320 mu m...