Electronics Forum | Fri Jun 25 09:19:12 EDT 2004 | tjensen
60-70% RH will be a challenge if you are running a water wash solder paste (and could be the reason you are seeing the problems). If you are running a no-clean, humidity should not be an issue. As long as the profile looks OK, I don't think the con
Electronics Forum | Sat Jul 03 15:14:25 EDT 2010 | scsi
Hege, can you share more info on the formulation you ended up using for the micro dot dispensing? I'm trying to find the proper metal load and viscosity for the auger valve dispenser that we are developing and it looks like the regular low viscosity
Electronics Forum | Thu Jun 24 02:31:24 EDT 2004 | yukim
Currently we are having a lot of solder balls, after a few hours of continous production. This is how we work: load new solder paste at the beginning of the shift, less than 500grms. Then, the operator loads new solder paste periodically, every 3 to
Electronics Forum | Tue Oct 12 22:22:34 EDT 1999 | se
| Hi, | We are in the process of evaluate our solder paste,incoming inspection over the solder paste, stencil requirments: | | 1- Is anybody using/requiring 1000 Kcps or more on viscosity to your solder paste provider ? Why ?? | 2- Is anybody using
Electronics Forum | Sat Jul 03 08:52:19 EDT 2004 | davef
Q1: What's the difference between static and dynamic viscosities? A1: Static viscosity is the viscosity of the solder paste as it is dispensed off of a tube or syringe onto a screen printer. Dynamic viscosity gives the variation in the thixotropic b
Electronics Forum | Wed Jan 19 11:37:18 EST 2000 | Mark D. Milward
Does anyone consider the use of a Cyberoptics LSM solder paste thickness measurement system to be a valid test in determining the viscosity of solder paste. This procedure was proposed as an alternative to using the Malcolm gage for viscosity testing
Electronics Forum | Mon Aug 22 09:35:54 EDT 2005 | cyber_wolf
First off, why do you feel you need to check paste viscosity ? I thought checking paste viscosity was a thing of the past ?? If you are having paste viscosity problems then it's time to get a new paste supplier. Any of the main paste suppliers have g
Electronics Forum | Tue Oct 12 10:24:50 EDT 1999 | Jose RG
Hi, We are in the way to evaluate different solder pastes, improve our solder paste incoming inspection steps, re-define our stencil requirements and the following questions are open. Two questions, 1- Is anybody using/requiring 1000 Kcps or more
Electronics Forum | Mon Aug 22 09:01:09 EDT 2005 | iwan
Well guys, I just buy a brand new solder paste softener Malcom type SPS2, I've tried with this with this viscosity result. I Use Almit Solder Paste Lead Free LFM-52X 1 min : 264 pas. 2 min : 272 pas. 3 min : 277 pas. I use standard for Viscosity 20
Electronics Forum | Tue Dec 07 05:16:12 EST 2004 | kanwal324
We are using solder paste of Alpha Metals 390DH4. As per manufacturer guidelines the viscosity of paste after 1/2 hr. conditioning and after mixing in paste mixer,it shoule be between 800-1250KCP. Our customer is asking for viscosity to be maintained
