Electronics Forum | Thu Apr 26 16:36:35 EDT 2012 | davef
Stencil Cleaning [AIM LeadFree] * Stencils should be cleaned frequently enough to ensure total removal of any bottom side residues, but not so infrequently as to allow the same residues to dry or cake on, making their removal much more difficult. * S
Electronics Forum | Mon Apr 30 08:34:08 EDT 2012 | almoore
We use a small surface mount connector that has two alignment pins to ensure proper alignment. It works fairly well. I'm thinking that this simple alignment solution might work well with lead less parts like a BGA or QFN. I can hand assemble QFNs
Electronics Forum | Mon May 21 10:25:16 EDT 2012 | swag
Ask for board fiducials if you're running arrays. Global fids on the panel do not work well. One handy product we use on flex is "Tacsil". Works well on SMT pallets as well as router operation. It's double sticky stuff that helps hold on to the P
Electronics Forum | Wed Jul 04 16:40:56 EDT 2012 | comatose
We use a lot of single row breakaway pin headers. Right now we order then as sticks of 36 and I just have a tech break them into whatever lengths we need (3 pin, 5 pin, 8 pin, whatever.) I'm trying to streamline our auxillary processes. I know you ca
Electronics Forum | Fri Jul 06 05:28:59 EDT 2012 | jsolloway
..... that's very strange. If there were any risk of de-lamination then it would of occurred during the reflow process, surely. Unless the through hole department are using heat guns or wave sodler? I doubt if the sales or planning team are happy if
Electronics Forum | Tue Aug 07 09:44:44 EDT 2012 | parmar01
Hi All Im new to the forums, And this my first thread. im the production manager at Broyce Control Everything ive learnt about wave soldering is by trail and error i know its not the best way but it has worked for me. The problem i have been
Electronics Forum | Fri Aug 10 18:06:52 EDT 2012 | mfergus
Anyone have experience printing solder paste for a Toshiba SSM3K15CT(TPL3) FET with CST3 package? Using 1 to 1 rectangular apertures with a 4 mil stencil and Alpha OM 338 #4 powder size lead free solder paste. Print head speed is 15 mm/sec and solven
Electronics Forum | Wed Aug 15 19:55:46 EDT 2012 | hegemon
If you are doing X-Ray post place and pre-reflow you should be good. Look elsewhere. Check profile - full lead free or hybrid? Be sure you are acheiving the required reflow temps and TAL required for the solder paste too. Check for belt movement
Electronics Forum | Thu Sep 13 04:18:33 EDT 2012 | huanyupcb
Dear Sir or Madam HuanYu Future Technologies Co., Ltd is one of the China leading Printed Circuit Board Manufacturing Enterprises.Main supply Aluminum core PCB,copper core pcb ,flexible PCB,fr4 pcb ,Double-sided PCBs , Double-sided flexible PCBs ,We
Electronics Forum | Mon Oct 08 13:31:50 EDT 2012 | highmillr
Yeah thanks swag, I do that ridiculous routine about every morning....im over it.... so I ordered a new belt..4 weeks lead time by the way from speedline. AND,...I took the tiny belt tensioners on each side and tightened both pretty tight and
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