In a message dated 05/22/2000 6:32:48 PM Central Daylight Time, [log in to unmask] writes: > I just did a 4oz, 4 layer power module at Advanced Circuits (www.4pcb.com) > and had no problems. Minimum required spacing was 12 mils. Silkscreen > tended to pool in the low spots between traces, but that was only really > visible on solid silkscreened areas. > > Gary Crowell > Micron Technology Hi Gary! Just curious, was the soldermask LPI or Dry Film? As Mike Sewell said, we had a 4-oz copper board that used dry-film and had severe soda-straws... -Steve Gregory- ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################