Electronics Forum | Thu Nov 29 14:11:33 EST 2012 | davef
When you say "solder paste layer," what are you talking about: * Post-print / pre-placement quality inspection * Post-reflow solder inspection * er what?
Electronics Forum | Wed Jul 12 07:33:11 EDT 2017 | bk
Another option you can try is to use solder paste with a dispensing machine and then use a hot air gun to reflow the solder paste on the smd caps
Electronics Forum | Wed Aug 21 13:28:20 EDT 2019 | ameenullakhan
And what is the solder paste selection recommendation for the same. 1. Water soluble ( organic based flux solder based ) 2. No clean ( rosin or resin based solder paste ) customer is suggesting water soluble chemistry , which is having lot hot an
Electronics Forum | Thu Jun 22 12:50:13 EDT 2000 | JAX
Igmar, Although I agree with Chrys that square is good,( Better volumn ) his explanation is not entirely correct. Heres a little insert from automata: With square apertures, solder paste is deposited at the center of the aperture. The center release
Electronics Forum | Thu Oct 02 16:22:46 EDT 2008 | davef
Not all paste formulators offer suggestions on handling the storage of opened paste jars, but some do. Here's a couple. Storing Opened Solder Paste Containers * Once a jar or cartridge has been opened it should not be re-refrigerated. If solder past
Electronics Forum | Mon Jun 09 09:37:28 EDT 2008 | scottp
Every paste supplier I've talked to has recommended against these things. They fear the paste will be overheated.
Electronics Forum | Mon Aug 02 17:31:20 EDT 2021 | emeto
You did not mention what is different in the results? Is it offset? Is it amount of paste? Paste height?
Electronics Forum | Sat Jul 24 00:31:21 EDT 1999 | Scott McKee
| Has anyone ever heard of testing solder paste quality by pasting a board and making a determination of the quality by measuring paste height and width after the board is pasted. Would you consider this a valid test for solder paste testing? | I ag
Electronics Forum | Wed Apr 18 20:55:20 EDT 2001 | davef
Yins are bad, this guy's serious. Generally, solder pastes are comprised of: 90% solder powder, 5% flux, 4% solvents, and 1% activators [by weight]. Where: * Solder powder, when reflowed, is a metal bonding agent that mechanically and electrically
Electronics Forum | Tue Jul 04 21:56:23 EDT 2017 | anhsang38
Hi Everyone I wonder know the effect of copper in solder paste, solder bar. Thanks.
