Electronics Forum | Mon Jun 22 05:04:57 EDT 2020 | ameenullakhan
Hi Dave, Thanks . But it's one of our customer requirement to have in house solder paste viscosity measurement. Regards, Ameen
Electronics Forum | Tue Jun 23 05:48:17 EDT 2020 | ameenullakhan
Hi Sr Tech, Yes we do have a COC for every solder paste with viscosity measured. But some customers have there unique requirements. And its not useful arguing with them. Regards, Ameen
Electronics Forum | Thu Feb 10 09:14:09 EST 2005 | davef
Don't kid yourself, something has changed. * Worn stencils should produce better release and greater paste deposits than less worn stencils. * Consider inspecting the effectiveness of your cleaning process with a X10 magnifier. * Temperature in your
Electronics Forum | Mon May 17 15:14:12 EDT 2004 | solderpro
Agree with Joe 100%, we recently brought one in from Malcolm for trial, this company had not practiced viscosity reading or anything in the process, the trail run was a great improvement in print, consistancy, deposition and formation of the solder b
Electronics Forum | Thu Apr 23 21:07:09 EDT 2009 | luismolinero
Emilio: Several factors you need to take into account and your process parameters will depend on: Solder Alloy, Is there any Fine Pitch?; BGA?; Smaller chip size?. Tipically you should go for controls in: Solder Temperature and viscosity; blade and s
Electronics Forum | Tue Jun 23 05:52:15 EDT 2020 | ameenullakhan
Hi dave, Thanks for the input. your valuable feedback always help. which method is better Spindle or T-bar. IPC TM 650 have are considered as standard methods. 1. T bar 2. Spindle. since we have never used it. we are bit confused. Which would be
Electronics Forum | Fri May 09 14:56:37 EDT 2008 | markhoch
The paste dispensers work well as long as the humidity in your shop is properly controlled. If it gets too humid, and the paste gets "soupy", then it will take less air pressure to dispense it onto the stencil. Paste dispensers use a controlled, pre-
Electronics Forum | Wed May 12 08:35:20 EDT 2004 | solderpro
yes this paste is a pain in the paste.... there are very few reasons for solderballs, component to pad ratio and placement.... solder paste control, using a mixer, not hand mixing, checking viscosity and temp..... or simply and bad profile and your
Electronics Forum | Sat Jan 13 03:43:38 EST 2007 | Stephen- SMT engineer trainee
We are now using solder paste(OM325) and I have some problems on the folowing process: 1. We use the solder paste softer(Malcom SP-1) to warm-up for 20 mins, when it just take from refrigerator. Is there any problems for solderpaste performance? 2.
Electronics Forum | Wed Oct 15 16:34:36 EDT 2008 | gregcr
Hi All, I am retrofitting a machine with a solder paste dispenser head, and am trying to decide what direction to go, with a dispense valve. The choices I know are either a standard Air over, or some kind of positive displacement valve such as a sc
