Use a mesh pattern, rather than solid. It happens because the electrostatic charge migrates from large areas.
Malcolm
I don't suffer from insanity I enjoy it!
Mene, mene, tekel, upharsin
The writing is on the wall.
________________________________
From: sailingto <
sailingtoo@...>
To:
Homebrew_PCBs@yahoogroups.com Sent: Thursday, March 15, 2012 3:15 PM
Subject: [Homebrew_PCBs] ground planes
Does anyone have problems getting large ground plane areas to stay good 'n solid with copper? I've been having a bit of problem with large ground plane areas using toner transfer method. If I do a board without a large ground plane, the traces look good - trace size ranges from .015" to .050" or so.
I clean copper good, wash with alcohol. Toner transfer at 360ºF with a laminator using Pulsar toner transfer paper, then etch in HCl and H2O2. I used the green film last board and it seems a bit better, but not sure about large areas yet.
Just checking to see if anyone else has this problem, or maybe found a solution...... or maybe it's just me?
Thanks for any guidance and suggestions.
Ken H>
[Non-text portions of this message have been removed]