Electronics Forum | Thu Aug 24 14:42:30 EDT 2006 | any
y we had solder ball after reflow owen?
Electronics Forum | Thu Aug 24 15:37:50 EDT 2006 | Chunks
Hi Any, This is from an earlies thread "Solder Ball After Reflow Process". Date: August 16, 2006 01:52 PM Author: Russ Subject: Solder Ball After Reflow Process Oven settings are meaningless here. What does the board see? It is the paste we a
Electronics Forum | Tue Jun 04 10:39:45 EDT 2002 | jasonfang
Does anyone knows root cause of solderball after reflow? Thanks
Electronics Forum | Tue Jun 04 10:39:54 EDT 2002 | jasonfang
Does anyone knows root cause of solderball after reflow? Thanks
Electronics Forum | Thu Nov 30 08:09:19 EST 2006 | INGE
Hi everybody, The matter is this: after reflow, on top side leads of chip components (resistor 0805)appear some empty balls of solder. In some cases this thing is only on the lead and the solder joint seems good, in other cases this empty ball is als
Electronics Forum | Wed Jan 01 22:19:33 EST 2020 | sssamw
Solder ball attached on solder joint without violation minimum electrical clearance is acceptable. If your process parameter including stencil not changed, suggest you check if solder pasted being pushed out after IC placement, also check if solder j
Electronics Forum | Thu Jun 06 09:28:24 EDT 2002 | Hussman69
Sure do, it's from the paste that gets squeezed under your R's and C's. This paste is now on your mask and during reflow, wants to move off the mask. Unfortunatly, it follows the flux residue to the side of your component. An easy fix is to use th
Electronics Forum | Tue Dec 31 02:13:14 EST 2019 | agoesfirmanto
This PCB model has been in production since 2018 and stopped production almost 1 year ago, now it has started production again and I found this problem. at the time of production in 2018 this problem did not occur. while the parameter settings do not
Electronics Forum | Tue Jun 04 17:21:22 EDT 2002 | jasonfang
I found solderballs are around chip components (on one side of middle area), I checked gerber data, solder paste of aperture on the stencil for these chip components have 5% reduction to solder land on PCB, shape of solder land are square, not home p
Electronics Forum | Mon May 10 11:24:33 EDT 2004 | Charly
Encounter solder ball crack after reflow, found the solder ball is out of shape after reflow, cross section view found that the solder mask opening is not good ( when we do comparason with diff. supplier substrate.) Does the solder mask shape will af
