Electronics Forum | Tue Sep 13 11:05:38 EDT 2011 | nucleartoast
I worked for Electrovert for 20 years as a machine designer. Our first computer controlled solder machine the Century 2000 used Infra red pyrometers that were very accurate - once you calibrated it against what you wanted to measure. So the aim and s
Electronics Forum | Thu Oct 26 08:59:56 EDT 2000 | Antonio A. Medina
Ok guys, I need help. Here's the deal. We're getting micro solder balls under discreets on the bottomside of the board. Here's my set up... MPM screener w/vacuum plate 6 mil metal screen with 90% circular (rounded) apertures 7 mil (measured) past
Electronics Forum | Thu Jun 17 10:25:43 EDT 1999 | Brian Wycoff
| | We are a medium sized PCB assy. house manufacturing about 2000 motherboards a day. There is a major problem we are facing at the wave soldering stage, i.e. warpage of the PCB. As soon as the PCB touches the wave it warps severely from the centr
Electronics Forum | Wed Jun 24 11:59:31 EDT 1998 | Brian Conner
| What is your current solder pot temperature? Whatever that temperature is, | has it been verified/calibrated? | What kind of flux is being used? No-clean, OA, RMA? | How is the flux being applied to the PCB? | Is this problem occuring on ALL nega
Electronics Forum | Thu May 26 15:59:40 EDT 2005 | davef
Let�s not get drawn into making more of the amount of training required in order to be able to develop an effective reflow recipe than is necessary. A low-skilled operator with about one hour's training can setup the solder reflow oven. Consider co
Electronics Forum | Wed Jun 24 13:46:41 EDT 1998 | Chris Kelly
Brian, a couple of things really stick out here... 1) You are spraying what is referred to here at the CATT as "PINK DEATH" The 3355-11 is about the most active/aggressive flux you can get your hands on. I am concerned about both the condition
Electronics Forum | Thu Sep 09 13:31:26 EDT 1999 | Brian W.
| | My company is looking to perform "real time" statistical process control on our current SMT operations. I have identified the critical processes for SPC but have not had much luck in finding a system(s) that can monitor the required processes for
