Electronics Forum: balanced (Page 10 of 41)

A Meaty one for you clever guys in production

Electronics Forum | Tue May 17 10:27:02 EDT 2005 | johnw

Thanks Guys I am looking to enhance and utilise exsisting machines or a with a reduced investment ie I have already purchased printers and placement machines If I had line balancing software this would be great I want to input the present cycle time

Cu dissolution PTH

Electronics Forum | Fri Jul 08 10:38:15 EDT 2005 | patrickbruneel

Hi Inds, Don�t forget to give us an update in about 3 months so we can all learn something from real life experience. Common sense tells me that the alloy will be out of balance in 3 to 6 months (depending on volume and board/comp.plating) but I can

Boards getting

Electronics Forum | Wed Aug 03 21:20:09 EDT 2005 | Ken

CTE mismatch. X, Y, Z all expand at different rates. Cooling or heating rates will not change this CTE mismatch. Layer counts, power plane ballance, equal run lengths in x-y and copper balance all contribute. Have your supplier evaluate your s


Electronics Forum | Wed Aug 24 08:57:39 EDT 2005 | stepheniii

Why is your big heavy BGA profile your fastest one? I'm guessing because it's hotter therefor faster? To achieve some kind of "balance" with the others. But you want those boards to get more heat, so you don't blance higher temps with faster belt, yo

X7R woes

Electronics Forum | Wed Dec 28 15:40:21 EST 2005 | Chris

Your not using a jaw machine? Had a problem with jaw machine once. Could hardly see the cracks but give it a little heat and the crack open up. Adjusted jaws but ultimately had to move the cap to the chip shooter upstream. Moved the cap to the ja

Best IP to get?

Electronics Forum | Wed Sep 27 11:44:46 EDT 2006 | darburch

IP? With a MY machine what is it you are tring to solve with an IP. If you are looking for a speed improvement and corresponding throughput the cost of running and maintaining an IP is not going to balance out. However putting a real chipshooter in f

Glue dispenser dor SMT line ( Glue process )

Electronics Forum | Tue Jun 19 07:20:43 EDT 2007 | sami

Dear Fastek. For the Front panel board we are using multible ( 4 boards in one PCB. even thought the balance between the DEK printer and the placers still big 6 sec as a difference. But, may be this is a good idea for the main board? may be also it's

Using Isopropyl alcohol as flux thinner

Electronics Forum | Mon Nov 12 15:20:59 EST 2007 | russ

WE discontinued using the thinners about 13 years ago, we have not used RMA flux however. The "thinnners" supposedly have some solids content in them to keep A balance but I say B.S. and just use alcohol, we have never experienced any issues whatsoe

Board Warpage

Electronics Forum | Tue Apr 29 11:18:16 EDT 2008 | julienvittu

basically your problems come from the copper balance top and bottom side we are using substrate down to 0.18mm (semiconductor industry/ Bga package / SIp business) you have to respect 5% difference maximum between Top and bottom side otherwise you

Is solder purity affect solder joint reliability?

Electronics Forum | Mon Jul 14 07:49:50 EDT 2008 | edmaya33

Do we really need to follow the IPC J-STD-001 Solder purity? If so, how to effectively balance the chemistry of Sn63/Pb37 other than adding a pure tin on the solder bath? Is this really needed to monitor in monthly basis?How many kgs of pure tin pe

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