[Lowfer] Etching boards

[Zack Widup]

Hi Mike,

What are you using for etchant?  It seems ferric chloride is getting 
almost impossible to get these days and I have been using sodium 
persulfate but it tends to get through the Datak ER-71 photoresist 
sometimes.  Ferric chloride never penetrates that photoresist.

Zack W9SZ

On Tue, 26 Aug 2008, Mike WE0H wrote:

> Deep breath....hi hi...Etching boards today folks. Gotta love that stinky 
> acid bath...
>
> Mike
> WE0H