Soldermasks come in many colors, however most assembly houses request green.  I am also
interested in finding out the history of "why green".  Perhaps its as simple as thats
how it began (like the volkswagon bug).  I personnally think it provides a pleasant
contrast to the glass, copper, legend, etc.
Dave B

Arturo Aguayo wrote:

> I was recently asked by a college student working on a research project,
> "why are printed circuit boards green?". The short answer to that is that
> they are green because of the soldermask color. Which led to the next
> question "is there a reason why soldermasks are green?" To this question I
> had no answer and therefore turn to this forum to see if anybody might know
> the reason (I wouldn't want a student to not graduate because of me).
>
> regards
> Art Aguayo
>
> ##############################################################
> 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 Gayatri Sardeshpande at [log in to unmask] or
> 847-509-9700 ext.5365
> ##############################################################

--
Dave Brown
Quality Manager
RexCan Circuits
[log in to unmask]
1-613-969-0009
161 Bridge St. E.
Belleville Ont.
K8N 5B6

##############################################################
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 Gayatri Sardeshpande at [log in to unmask] or
847-509-9700 ext.5365
##############################################################