Electronics Forum | Sat May 31 14:33:59 EDT 2003 | kenBliss
CAL Here is another perspective. Ask what is included in the setup costs, ie. programming, stencils, setting up part number bins, bill of materials, changeover time on the line etc, etc. Then ask how much time and costs the CM is allowing for each
Electronics Forum | Thu Aug 21 21:05:39 EDT 2003 | Tom B
Dan, We, do alot of double reflow. Your right we typically see alot of the standards components, SOT's, SOIC's, Chip stuff. The largest we do with out adding epoxy is some 32pin PLCC's. We have several assemblies were were doing PLCC44's, Sockets
Electronics Forum | Wed Aug 20 16:36:11 EDT 2003 | stefwitt
For the first time, I was asked to pay tax on a used machine. The machine comes from a reputable manufacturer and I do not doubt their integrity. I asked my accountant (who has many titles in front of his name) and asked for a tax exempt number and
Electronics Forum | Thu Jan 08 16:43:43 EST 2004 | Dean
Unless your machine (internal) thermocouples are each calibrated and compensated no two machines will deliver eactly the same results. Here are your challenges: 1. Data acquisition equipment A-D converter errors 2. PCB measurement thermocouple (t
Electronics Forum | Tue Mar 02 22:40:52 EST 2004 | pdeuel
To clean up other replys I will add that some most all machines have global correction. Most placements are an off sets from pcb 0,0 usually the lower left corner of the board. When the machine locates the fiduitals and these fids are not exactly whe
Electronics Forum | Tue Apr 13 20:57:14 EDT 2004 | Mike Konrad
Hey Dreamy, Dave is correct. If you attempt to clean your water soluble (OA) flux with water only, you will turn the no-clean flux white. No inspector or end-user will accept this. If a proper cleaning system is not available to you, then I would
Electronics Forum | Sat Jun 05 08:18:03 EDT 2004 | vinitverma
Hi Grant, If you're really looking for speed, I'm sure you're looking for another machine for doing the QFPs, BGAs stuff etc. In that even, why not have a look at the long proven Assembleon FCM machine!! It is a totally different concept with UNMATC
Electronics Forum | Fri Jul 23 14:41:41 EDT 2004 | Steve Stach
Dear JSK, It sounds like the root causes of your problem are two fold. First, excessive heat will polymerize the abietic acid found in rosin forming neo-abietic diamers and polymers which are much less soluble than the parent monomer. There are
Electronics Forum | Fri Jul 30 05:21:04 EDT 2004 | vinitverma
I would also like to add some more features of Assembleon XII platform. You had mentined that you already have GSM machine whose feeders could be used if you buy a new GSM machine. Assembleon XII machines such as Opal XII, can use GSM feeders as we
Electronics Forum | Tue Aug 03 18:11:21 EDT 2004 | davef
Improper washing of water soluable flux residues can be a major contributor to flux residues remaining on the board surface. ;-O That you appear to be only complaining about the pathetic state of the ability of your washer to clean under BGA, it may
