Electronics Forum: pin in paste (Page 6 of 104)

Pin in Paste assistance

Electronics Forum | Wed Sep 30 15:28:49 EDT 2020 | spoiltforchoice

If you could change the design, a 2x25 1.27mm pitch surface mount connector is a standard part from Wurth. Samtec also do versions in any pin count you might desire, with locating pins, without, with picking clip etc.

Pin in Paste assistance

Electronics Forum | Thu Oct 01 17:15:50 EDT 2020 | spoiltforchoice

Stress concerns, spread over 50 pins. Madness, but then people do still seem to have a level of paranoia with SMT. Here we'd suck it up and handsolder them, and the operatives would not be happy about it.

Solder paste supply in Catridge Vs Jar

Electronics Forum | Sun May 13 22:55:03 EDT 2001 | zam_bri

Solder paste supplied in Catridge vs Jar. What is the pros and cons ? /zam_bri

Solder paste in Syringe vs Jar

Electronics Forum | Fri Nov 08 14:51:37 EST 2002 | davef

You should take steps to prevent paste seperation, regardless of the container type.

Rate for materials in solder paste

Electronics Forum | Tue Aug 05 03:22:48 EDT 2003 | emeto

Hi, Does anyone knows what's the rate for used materials for making soloder pastes? I found some charts, but they are old. I'm interested is leadfree already the most used and should I change my paste?

Solder paste in Syringe vs Jar

Electronics Forum | Thu Nov 21 02:43:07 EST 2002 | jate

Hi, Jar's quality is easier to measure. If you want to know paste viscosity etc. it's easier if you use jar. I have bad experiences about cartridges. I used cartridges for a short time but I change it back to jar because flux separated too easily in

Moisture absorption in the solder paste

Electronics Forum | Mon Nov 07 06:16:59 EST 2005 | laxman

Hi, We have faced the solderability issue (Dewetting and solder balls)in all the Boards after reflow.When we found this issue we discarded the old paste and started using the new paste then for some hours the solderability found to be O.K. After so

Solder paste in Syringe vs Jar

Electronics Forum | Thu Nov 07 07:35:23 EST 2002 | cyber_wolf

If you are experiencing flux migration, try refrigerating your paste when not in use. This causes the flux viscosity to go up. I have seen flux seperate from the solder is when it is VERY old and out of date.Sometimes warmer ambient temperatures wi

Solder paste in Syringe vs Jar

Electronics Forum | Fri Nov 08 14:57:43 EST 2002 | slthomas

What I was told is that the stirring is intended to promote some shear thinning, not to redistribute the flux. The cartridges (and I'm assuming the syringes, too, if you're differentiating between the two) alledgedly introduce some shear thinning ju

Moisture absorption in the solder paste

Electronics Forum | Mon Nov 07 08:27:56 EST 2005 | chunks

It could be you are drying out your solder paste. Most flux formulations are alcohol based and after a few hours can dry out. This can can lead to dewetting and solder balling as well. Especially if you do not homeplate your R's and C's. A simple


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