[labnetwork] ZEP worth it?

[Orad Reshef]

Dear Long,

It does not last forever, though it DOES last after the expiration date on
the label. I've heard of people decanting it on arrival and into smaller
portions and freezing those, but I've never done that myself.

I think the main benefit to ZEP when compared to PMMA is its etch
resistance to certain gases. The dose is sufficiently lower that if you
need to write large areas it could be worth it.

You can also certainly obtain smoother features than with PMMA too, but for
nearly all applications I'm not sure it's worth the price tag just for
that.

Orad Reshef, PhD

Département de physique | Department of Physics
Université d’Ottawa | University of Ottawa
boydnlo.ca | reshef.ca


On Thu, Apr 29, 2021 at 11:48 AM Chang, Long <lvchang at central.uh.edu> wrote:

> Hi Guys,
>
> I have no experience with ZEP, but the data sheet suggest a critical dose
> of ~35 uC/cm2, approximately 1/10 of PMMA. What are the problems with ZEP
> and under what conditions is it worth the cost? Does it last forever in
> storage like PMMA?
>
> Thanks,
> Long
>
> _______________________________________________
> labnetwork mailing list
> labnetwork at mtl.mit.edu
> https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mtl.mit.edu/pipermail/labnetwork/attachments/20210429/bcf2e34a/attachment.html>