On Sun, Apr 02, 2017 at 10:40:40AM -0700, Chuck Guzis via cctalk wrote: > On 04/02/2017 07:53 AM, Diane Bruce wrote: > > > Read this: > > > > https://nepp.nasa.gov/whisker/reference/tech_papers/2011-nasa-gsfc-whisker-failure-app-sensor.pdf > > There are problems with the site's certificate, but I was able to wget > the paper using the --no-check-certificate option.
I also had to work around the stupid cert. ;) > > Tin whiskers were a big deal around 2005-2012 or so, and then the > discussions suddenly dropped off. I'm not sure why. I remember the story well. All the denials from the Toyota people and then this story about the whiskers in the controls. ugh. > > Here's a pretty good paper from about 2011 from Maxim that discusses the > issue: > > https://www.maximintegrated.com/en/app-notes/index.mvp/id/5250 *nod* > > It includes a bit on the danger (or lack thereof) of using lead-based > solders in electronics. Quite frankly, I wonder why the RoHS people > didn't mandate that lead flashing on roofs, lead canes in stained-glass > windows and a host of other applications weren't banned. Not to mention lead in automobile weight balancers which is apparently banned in Europe. I guess it's because roofs, lead canes in stainless windows aren't recycled as quickly as electronics. I dearly wish they had have mandated proper lead recycling instead of an outright ban. > > --Chuck > > Diane -- - d...@freebsd.org d...@db.net http://www.db.net/~db