Electronics Forum | Wed Dec 11 15:00:30 EST 2002 | Claude_Couture
Funny how people keep refering to the material in pencil as "lead" when actually it is graphite. As such, it is not soluble in water or alcool, so should not interfere with contamination testing. As for the dust causing shorts, very unlikely. Plus, y
Electronics Forum | Wed Dec 22 12:36:36 EST 2004 | rlackey
Hi Mark, Look on the bright side, if you want to change from HASL you've got the lead free issue which will allow you to evaluate all other finishes, and find the best one for you. Dave, have you seen any unleaded HASL finishes & any issues arising
Electronics Forum | Fri Feb 25 18:13:17 EST 2005 | davef
Your leadfree dross should float, similar to your leaded dross. It's possible you're thinking about the process for removing excess copper from the solder pot. Following the same process, with: * Leaded solder, the copper floats. So, you scoop the
Electronics Forum | Tue Aug 30 09:24:08 EDT 2005 | Slaine
we manufacture a range of ceramic parts that have silver termination,there is already a small leaching problem (absorption of the termination by the solder in liquid form)with Sn62 that we live with, having to implement unleaded solder they are norma
Electronics Forum | Wed May 21 21:48:57 EDT 2008 | hughes909
Guys! Its very interesting question to know about whether our blood polluted with lead or not. what i read is that lead is the maximum dense metal, it mean that it could not be digestible. We now a days, living in the maximum polluted senerio whe
Electronics Forum | Wed Jun 20 12:55:29 EDT 2018 | reckless
Which compact oven manufacturer makes a better product? Essemtec or DDM? The Essemtec units look the same as Manncorp. I have found 2 RO300FC's and a Novastar 1800. The 1800 looks like it hits a higher temperature but not sure if its needed to go
Electronics Forum | Tue Mar 06 19:45:52 EST 2007 | davef
DPAK align on the tab with leaded solders. They don't align much with unleaded solders, but we know that your Indium NC-SMQ 92J is leaded. So, there may be too much paste on the heat sink tab causing the component to float [or wim] during reflow. If
Electronics Forum | Wed May 14 08:26:17 EDT 2008 | realchunks
Lead cannot be penetrate your body through your skin by just touching it. You have to swallow it. It does not promote cancer or cause you to go steril like the rumors at my plce of work talk about. Although it is fun to touch people you dislike wi
Electronics Forum | Fri Nov 09 08:45:31 EST 2007 | philkaz
I am in the R&D department at KIC. We have been making thermal profiling equipment for 20+ years. A standard circuit board is made from FR4 fiberglass. A typical solder reflow profile, whether leaded or unleaded, takes the board above the "glass t
Electronics Forum | Fri Jan 04 09:44:59 EST 2008 | philkaz
Hello, I am Philip Kazmierowicz and I work with KIC, a Thermal Profiling company. We have done many lifetime experiments on Printed Circuit Boards over the years. The key thing to understand is that if the primary material of the board in FR4 fiber
