IPC-6018 requires 20 µ for class 1 & 2 boards and 25 µ for class 3.
-----Original Message-----
From: Richard Brennan [mailto:[log in to unmask]]
Sent: Thursday, December 19, 2002 10:44 AM
To: [log in to unmask]
Subject: [TN] Plated Through Holes
Hi everyone
Can anyone tell me what the recommended thickness of the barrels of PTH's
is?
We have a minor problem with 0.4mm dia. barrels not giving good ground from
top of board to ground plane on underside.
Boards are double sided PTFE / copper track / Emersion tin RF boards.
Richard Brennan
Manufacturing Support Manager
Health & Safety Manager
Aerial Facilities Ltd
Aerial House
Asheridge Road
Chesham
Bucks
HP5 2QD
01494 777000
Direct line
01494 777052
[log in to unmask]
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