Thanks Dave! I'm glad that paper is of some use to you. On Thu, Mar 27, 2014 at 11:10 AM, <[log in to unmask]> wrote: > Hi Ed - you also should have listed the link to the paper you wrote up > which is an excellent read and includes the embrittlement calculation > equations. I have my co-ops read the paper as an introduction to the topic. > > http://www.semlab.com/goldembrittlementofsolderjoints.pdf > > Dave Hillman > Rockwell Collins > [log in to unmask] > > > > From: Ed Hare <[log in to unmask]> > To: <[log in to unmask]> > Date: 03/27/2014 10:22 AM > Subject: Re: [TN] Calculate percent gold, by weight or volume? > Sent by: TechNet <[log in to unmask]> > ------------------------------ > > > > Guy, > > The accepted limits range from 3 - 5 wt% gold in the solder, so one must > calculate by weight, not volume. > > Ed Hare > VP SEM Lab, Inc. > www.semlab.com > > > On Thu, Mar 27, 2014 at 8:06 AM, Guy Ramsey <[log in to unmask]> wrote: > > > When determining the percent gold in a solder connection, should one > > calculate using volume or weight? > > > > I always did this by calculating the volume of the solder and the volume > of > > the gold by thickness. Thinking that solder and gold were similar in > > density. eeaAhh, yeah, NO. 11 oz/cuin. Versus 5 oz. > > > > So, there is a big difference between calculating by weight and > calculating > > by volume. Which way is right? > > > > Guy > > > > > > ______________________________________________________________________ > > This email has been scanned by the Symantec Email Security.cloud service. > > For more information please contact helpdesk at x2960 or > [log in to unmask] > > ______________________________________________________________________ > > > > > > -- > Ed Hare > gmail - [log in to unmask] > gvoice - 360-453-7550 > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > > -- Ed Hare gmail - [log in to unmask] gvoice - 360-453-7550 ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________