Electronics Forum: have (Page 236 of 3489)

Local Cleaning Post Rework on PCB with Conformal Coating

Electronics Forum | Mon Apr 02 15:31:20 EDT 2012 | jdumont

Hi Dave, we certainly do use low res. Still not comfortable with leaving anything behind however...Figured some brain would have a product for this. If not, this brain will have to create one and sell to other brains on this forum. :)

BGA Alignment

Electronics Forum | Thu May 03 07:08:27 EDT 2012 | almoore

I'm thinking of rework, not production. In order to rework the part you have to have an expensive split vision alignment system. A simple standard change would eliminate the need for an expensive system.

Tin Mitigation Processes

Electronics Forum | Mon Apr 30 17:43:53 EDT 2012 | scottv02

I have heard there is a process for mitigating the pure tin issues for 0402/0201 size parts by the use of SN63/PB37 solder print process. Is this true and does anyone have the data to back this up?

SMD LEDs stick to nozzle while mounting

Electronics Forum | Mon May 21 08:51:14 EDT 2012 | fredc

We have been seeing this in the nozzles we have made. We will building all new LED nozzles out of teflon where physically possible. Many of the new Cree LED recomendations are for teflon nozzles. In some that teflon was not recomended teflon was the

Another AOI thread

Electronics Forum | Mon Jul 09 17:52:15 EDT 2012 | hegemon

I have used Mirtec MV-7 inline for post reflow solder inspection in the past, with Laser check for lead height (QFP) Very fast and great support. I have no connection, and receive no compensation from Mirtec. 'hege

Unsoldered gold pads on unleaded wave solder process

Electronics Forum | Fri Jun 22 07:16:37 EDT 2012 | brettrenishaw

Spray fluxing yes but have checked the uniformity by using a fluxometer. Also have put boards through with only flux and preheat. no wave up to see if the carrier is being burnt off. I will look into the skip plating issue. Thanks again

AOI Bench top

Electronics Forum | Tue Jul 03 11:19:15 EDT 2012 | padawanlinuxero

Hello I have 2 Mirtec MV-7 AOI's and we have never had any problems with the inspection on these machines, in the hardware they are tough, one has been running more that 6 years only with the preventive maintenance and some wearable parts.

Blow Holes voids in solder fillet on caps

Electronics Forum | Thu Jun 28 22:20:23 EDT 2012 | davef

John: Secure the capacitors that you removed from the machine ... * Removed capacitors have a problem * New replacement capacitors don't have a problem Find help to determine the difference between the two reels of parts

Ink marking under conformal coating

Electronics Forum | Mon Jul 02 03:55:07 EDT 2012 | mccabekev

We are having a problem with inspection markings on our boards running when conformal coating is applied We have tried standard permanant markers, and also paint markers, but both run when the coating is applied. There must be someone out there who

STENCIL RACK

Electronics Forum | Thu Jul 05 09:09:40 EDT 2012 | stentech

you can contact me at rob@stentech.com I will have someone contact you and send you a quote. We have racks for 20 x 20 , 29 x 29, foils , Vectorguard etc. regards Rob


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