Faceplates (etching aluminum?)

[Isac Georg Jensen]

Martin Czech wrote:
>
> > particles clings to whatever dust particles there may be in the box.
> > Finally I place the alu at the newspapers and apply a thin layer of
> 
> Good idea!
> I suppose the open side is to left or right, not to the top ?
> This way , nothing from above can fall on your resist.
> The water makes dust particles stick to the walls of the box ?
> So, the walls are wet after the water procedure ?
> Or does it also get particles out of the air ?
>

Yes, the open side is to the left or right, and not at the top. I
believe that the water makes the dust particles stick to the walls of
the box, and that would include both the dust in the air and on the
inside surfaces of the box, I guess. Actually the idea is not mine, I
think I read it at the alt.hardware.something.
 
> By the way, how do you protect the backside of the panel against etching?
> I suppose that there is no resist on that side, and also not on the
> other small 4 sides of the panels.
> 

After developing the photo resist and rinsing it, I was thinking about
adhering some tape (thick brown, heavy-duty stuff) to the sides and
backside, to protect it for etching. It withstands FeCl, but I don't
know about the gold-eating stuff you mentioned earlier. Guess I'll just
have to test it!

-- 
--------------------------------------------------------------
Isac Georg Jensen
Department of Information Technology
Building 344, 120
Technical University of Denmark, Phone : +45 4525 3678
DK - 2800 Lyngby                 E-mail: c908369 at student.dtu.dk
--------------------------------------------------------------