Electronics Forum | Fri Aug 14 08:41:23 EDT 2015 | emeto
I don't know what paste you are using, but most of the leading brands can stay out of the fridge for up to 6 months.The paste you already took out of the cartridge should last you several days - up to one week, depending on your room temperature and
Electronics Forum | Fri Oct 02 09:22:24 EDT 2015 | derrikf
The following is representative of on-board temps of a FR4 at .069" thickness. The thermal couples were soldered directly to the board using high-temp solder. Again, the halogen-free solder requires an identical profile to our old solder. We had grea
Electronics Forum | Fri Aug 28 03:03:00 EDT 2015 | grimus
Thank you all for your advice. You are right this is two sides board, and dropped parts are on bottom side, and it is refered just to very light switches. I am using same temperature setup for top and bottom. What is interesting I am manufacturing t
Electronics Forum | Wed Sep 02 13:54:47 EDT 2015 | derrikf
I noticed a post from a few years ago with a guy looking for the same part, he was directed to Island SMT. Unfortunately, they do not currently have any in stock at the moment. This QA unit was used on Q-series machines made by Quad/Tyco, it was als
Electronics Forum | Mon Sep 21 07:47:31 EDT 2015 | koprivecj
Greetings! I have a problem with PAD connection in inner layers of 4 layer PCB (signal1, GND, POWER, signal2). Sometimes there is no connection between pad and power plane. I'm using termal relief around PAD in inner layers (same shape pad trough who
Electronics Forum | Mon Sep 28 09:58:45 EDT 2015 | ahanna
Hello everybody! I'm working with a Quad 4000c that has been refurbished by PPM and need a little help with using the CAD feature. Is there anyone that can help me out by giving me a basic walk through of how this works? I'm not sure if this is valu
Electronics Forum | Mon Oct 05 14:38:03 EDT 2015 | deanm
We are planning on using a chip that is available in LGA or Sn/Pb balled BGA. The package dimensions are the same. Pitch = 1.27mm. We are using a Sn/Pb soldering process and no clean paste (wash afterward) for high reliability Class 3 assemblies. Fai
Electronics Forum | Thu Nov 26 12:08:19 EST 2015 | jvalverde
My company sells the end product but It want to offer assembly services. We do not know how we can calculate the costs that would have to charge and use parameters need for the quote. According to some websites manufacturing services using the Board
Electronics Forum | Mon Dec 14 10:51:02 EST 2015 | dyoungquist
We have a two Heller ovens, 1707EXL (2006) and 1707MK III (2014). We use them for lead and lead-free reflow soldering including all the tricky components such as BGAs. You may want to go with 8 or 9 zones if you are running high volume but a 7 zone
Electronics Forum | Mon Dec 21 09:58:34 EST 2015 | dyoungquist
We are using Metcal STTC-8xx series tips. One thing that makes a huge difference on tip life is what type of solder you are using. If you are soldering with lead (SnPb) solder the tips will last 3 times longer on average than if you are soldering w
