The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
Subject: Re: Etching!
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Fri, 18 Oct 2002 11:24:05 +0200
NNTP-Posting-Date: Fri, 18 Oct 2002 11:21:17 MET DST
Organization: Slovenija OnLine - SiOL
FeCl is allegedly a bit slow, compared to HCl&H2O2, which I use...
Cause of your problems is almost certainly the etching part. FeCl has
attacked the copper surface, but
it is not agressive enough. I don't have any experience with FeCl, I suppose
you have to heat it a bit or use higher concentration...
"Märt Pikkani" wrote in message
> I don't know if this is rihgt newsgroup to get my answer but i will try.
> not, then could anyone recomend me a newsgroup from where i could get
> Here is what i did.
> I printed out my PCB on to a tranparency. Then used money detector as UV
> light an got tracks onto board. With NaOH (developer fluid) the tracks
> became clear and visible.
> Then used Fe3Cl to etch the Cu around the tracks.
> tracks are still with clear and visible but Problem is that Cu around the
> tracks changes its color( like Pink) but doesn't leave the PCB clear.
> Meaning that all the plate is still covered with Cu but little Cu has left
> the PCB. I could feel the edge of the track with my finger.
> What is my problem?
> is it money detector (UV ligth), which I don't believe.
> Do I do something wrong?
> Is it problem of etching bouder?
> Märt Pikkani
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup