I'm attempting to debunk the following two myths at the same time; 1. A collimated light source is needed for .005" to .01" rules when photoetching. 2. All vertical bubble etching system cause uneven etching. Board size is 6"X4" hung vertically as shown. http://www.pbase.com/eldata/6_6_rules
Message
6/6 Rules (.006" lines and .006" spacing)
2006-06-24 by derekhawkins