Electronics Forum | Mon May 22 11:28:56 EDT 2006 | Rob
Hi Pat, The main driver for the UK on Lead-Free is to avoid leachate in our drinking water & in the food chain. Whilst John Burke's report is compelling & I agree with him on the points he has raised, regarding the leachate issue he has referenced
Electronics Forum | Fri Dec 16 03:47:46 EST 2005 | gpaelmo
Anyone have problems wave soldering white tin finish? We are an ems and our customer provides us the pcb's. SMT and TH components on the board. SMT is fine but when we wave solder, wetting to top side is very poor (solder only flows half way up). We
Electronics Forum | Tue Jan 29 13:06:40 EST 2002 | Sergio Vito - Alan Patrick - Cristiano Dick
Dear sirs, We are experiencing problems with lines of lead formed inside the solder joint. In others words, there is a problem with the formation of the solder joint, after analyses on a microscope we can see the lead grouped in some positions. This
Electronics Forum | Tue Oct 18 19:34:02 EDT 2011 | warwolf
so there is no one here baised in New Zealand that wants to buy our SAC305 solder dross and recycle it, we have about 120KG at the moment, anyone intrested?
Electronics Forum | Wed Oct 19 20:04:06 EDT 2011 | warwolf
yeah I’ve tried to go down the road of internal recycling but the company carnt justify spending 20k on a machine that does it. Ah but where still onto it in other places though our SMT department has very minimal wastage on solder paste as we have b
Electronics Forum | Wed Jan 30 17:47:22 EST 2002 | davef
Oooo, pix, coo!!! Yes, that solder connection has been beat-up. It is very �old�. So, your customer is seeing failures, correct? I can believe it. I want to say the solder in your connections doesn�t stand a chance, but lack experience in this a
Electronics Forum | Wed Oct 19 11:33:15 EDT 2011 | caerleon
easier if you recycled on-site? You can still send off for reclaimation the oxide powder that your left at the end of the process. Failing that talk to your supplier to see if they have arrangements to do this for you or look at reducing dross - i f
Electronics Forum | Wed Jan 30 08:30:33 EST 2002 | seto
Hello Dave, Mechanically the conection between the component pad and PCB pad is good (the solder joint is very strong). The problem is associated with poor contact after the use by the customer (vibration, temperature, etc). You can see the pictures
Electronics Forum | Fri Dec 16 08:16:41 EST 2005 | davef
Heat cycles deplete the pure tin layer. Each solder cycle reduces the tin thickness by ~0.1 micron (4 uin). So, if you start with a thin imm tin coating you'll have problems after multiple heat cycles. Steve Wentz says, "In almost every case I've
Electronics Forum | Fri Dec 16 13:31:03 EST 2005 | gpaelmo
Thanks for your response.
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