Electronics Forum: you (Page 1311 of 3795)

Touch up paint for Universal GSM

Electronics Forum | Mon Mar 31 17:59:25 EST 2003 | mgc

Universal Customers are always welcome to use any of our available support options to obtain services or parts. I have attached the link to our web shopping site where I am certain that you may obtain the touch up paint you need. http://www.uic.com

Stencil Design for Resistor Net Array 0402

Electronics Forum | Wed Mar 26 19:11:52 EST 2003 | russ

Tell us more about your printer. squegge blade type ,speed, snap-off distance etc... You shouldn't have to change apertures for any component based upon its rotation. the parts that are coming out good could they withstand a higher volume print? You

SMT process Blowhole/ Pinhole

Electronics Forum | Fri Mar 28 09:44:11 EST 2003 | Claude_Couture

Your preheat temp seems excessive, what kind of solder paste do you use. can you try a max preheat temp of 140 degC? The reason for this is to let the solvents in the paste evaporate while keeping the activation of the flux for the very last moment b

SMT process Blowhole/ Pinhole

Electronics Forum | Fri Mar 28 21:37:11 EST 2003 | MA/NY DDave

Hi Are all the other solder joints for the other components other than the MELF not having a problem. That is what you said, yet I wanted to check?? To say a less twisted way is this only with the MELFs and is it with all the MELFs?? If you have

SMT process Blowhole/ Pinhole

Electronics Forum | Mon Apr 07 04:33:43 EDT 2003 | Neil

Iman, How long after washing the boards do you process them? Are there any vias or Micro vias on any of the pads you see the blow holes on? A possible cause of a blow hole in a solder fillet or PCB is the escaping of Moisture under extreme temps. Th

no-clean process

Electronics Forum | Fri Mar 28 21:43:57 EST 2003 | MA/NY DDave

Hi Yes to your stone question. This pretty much goes with any flux change. Yes to the proper solvent for the flux you choose. Check with the Kester Data Sheets. Kester should have some application sheets which include some No-Clean information.

no-clean process

Electronics Forum | Fri Mar 28 21:54:54 EST 2003 | MA/NY DDave

Hi Notice they do call out that you should use their thinner. In the MSDS you get a clue as to the thinner they are mostly using with some additives. http://www.kester.com/PDF%20FILES/PDF%20Data%20Sheets/E%20No-Clean%20Fluxes/951%20(30Mar98)logo.p

IPC Class II and Class III reliability

Electronics Forum | Thu Apr 10 15:20:35 EDT 2003 | MA/NY DDave

Hi DaveyF, Thanks You see, you proved my point, with piles of more information than I gave. Based on Application rather than design and manufacturing specifications, a lower IPC class can out perform another. So our starting Poster must look at t

Micro Via PWB Manufacturers

Electronics Forum | Sat Apr 12 00:56:31 EDT 2003 | MA/NY DDave

Hi Well I will give you one of many. It just happened in my life that I worked there for decades a decade ago. Old IBM, now Endicott Interconnect Technologies (EIT) If your PWB is complex and you like support they hopefully will do a good job. If

Sn plated

Electronics Forum | Thu Apr 17 10:21:53 EDT 2003 | davef

First thing to try is get the solder connection hotter. 210*C is just not warm enough for the 'high' tin content of this connection. Second, it's disconcerning that you don't have good plating on the pad or the terminal. Why can't your board suppl


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