In ~1980, Charles Jennings of Sandia National Laboratories, Albuquerque, researched dendrites and published a paper at the 2nd Printed Circuit WorldVonvention in Munich in 1981. He also produced a film showing dendrite growth, which was quite widely distributed. It is possible that some of the younger members of this list have not seen this classic document. You can now download a version of it at http://www.bnellis.com/dendrites/ in the form of a 3 min 50 sec WMV file (~625 kb). This can be played in Windows Media Player. If there is sufficient demand, I could put it into other formats/sizes. The quality may not be 100% perfect, as I believe the history of my copy was something like 16 mm film > Super 8 film > VHS tape > DV AVI file > WMV file! Brian --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------