Electronics Forum: manufacturing (Page 355 of 637)

SMT Production

Electronics Forum | Wed Feb 09 18:56:28 EST 2005 | darby

I would suggest that you contact your local contract manufacturers and see if they want some "free" labour for a month or so. There may be difficulties with insurance etc - maybe your HR dept could help there. Try and find one with a few different li

Shelf Life of Components (solderability)

Electronics Forum | Fri Feb 18 13:26:49 EST 2005 | GS

Thanks Dan. Q. to all : any EMS experience like when your Customer audits your facility for manufacturing readiness and when they ask you: what about control of component vintage ? or how do you handle the component shelf life on your facility? etc

Fine pitch & PCB finish

Electronics Forum | Mon Feb 21 10:05:33 EST 2005 | Dougs

Our machines can place components down to 16mil, I've never seen any finer pitch components in use, what pitch are they going down to now? 12mil??? What pitches have you been using? We are a contract manufacturer so customers sometimes supply free

electrically conductive adhesives

Electronics Forum | Mon Feb 28 04:10:07 EST 2005 | Rob

Hi Dave, Was planning on skipping the paste step & screen printing the adhesive straight onto the pad, then placing the component into the glue & curing. (Board has LEDs only) Regarding the lead-free HASL issue - not entirely sure on the board man

QFN Packages

Electronics Forum | Fri Feb 25 10:52:59 EST 2005 | russ

Would these be the parts that have just pads located on the bottom of the part? If so, we place these every day in decent volumes and have never had any manufacturing problems with them. I cannot comment on the reliability since we are a contract M

Need a Feeder Engineer

Electronics Forum | Thu Mar 03 12:55:31 EST 2005 | dru_wells

We seek the following. Any referrals would be appreciated. Responsible for the complete development of unique feeders that present custom metal stampings and connector products for pickup by industry standard placement machines. The parts will be i

Kemet Low ESR tant D

Electronics Forum | Sat Mar 05 22:32:58 EST 2005 | gpaelmo

Yes we've had problems with kemet caps on 12mm t/r. By the time it gets replaced, our production schedule gets so screwed up. Our immediate solution was to bypass and place them by hand before reflow. We eventually went with a cross from Venkel and i

Sn99 Cu0.7 Ag 0.3

Electronics Forum | Wed Apr 20 18:13:32 EDT 2005 | greg york

With twenty five machines working with the LFB227/S on our little island it does seem to work well. Wetting is good compared to Tin/Copper and flow is comparable to 63/37. Biggest problem sticking 3 - 4 % Ag in a solder ignoring the patents and royal

modifying a pcb?

Electronics Forum | Sat Mar 19 20:59:57 EST 2005 | nate

i have a bit of a problem. i need a 320x240 lcd with a 5.7" screen, and a max width of 146mm. i have checked with about a dozen manufacturers and 148mm is the smallest they make without custom designing the pcb, and this is prohibitively expensive. w

Solder joint strength

Electronics Forum | Wed Mar 30 16:07:24 EST 2005 | Dreamsniper

If there's no shear strength standard for solder joint, how will I define my pad width and length then. I have a 8.5 mils width and my component lead width is 8.66 mils based on manufacturer's minimum width specification. How will I identify that it


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