Electronics Forum | Mon Jul 30 16:26:45 EDT 2012 | rdouglass
Just curious if anyone else has trouble with the installation and inspection of DIMM Connectors (I know - these are through-hole parts!) We have boards with 240 pin DIMM connectors and occasionally a pin may not be properly aligned prior to press-f
Electronics Forum | Fri Dec 27 16:26:30 EST 2013 | davef
I expect to find the specification and measurement method for the bow & twist of an assembly to be on the assembly drawing. Comments are: * Expecting that an industry committee to write a bow & twist spec for an assembly they know nothing about is n
Electronics Forum | Wed Feb 19 16:26:35 EST 2020 | stephendo
IPC tried to develop a standard to compare machine throughputs. The machine placement times are usually based on very few components with optimum feeder placement and a very large array of placements. Real life boards are rarely like that. Once I wor
Electronics Forum | Wed Jan 20 16:26:34 EST 2021 | ttheis
Low Air Pressure: System reporting low air pressure; verified 12Vdc at pneumatic panel, manually jumpered and verified connections back to GPIO1 connector on the LOC I/O assembly. Swapped LOC IO cards then entire LOC IO chassis, with another machine.
Electronics Forum | Mon Feb 26 16:26:00 EST 2001 | jax
I have not placed these parts in a while but when I did Universal was the machine that did it. We were able to place these parts using a 1mil flat( upward looking camera) inspecting all columns. The problem is a 100% column recognition is not possibl
Electronics Forum | Mon Jul 19 16:26:09 EDT 2004 | davef
Your fab has supplied you with unsolderable boards. They are dewetted, due to some process problem. That they are dewetted on the annular ring of the via indicates that the problem is with the board and not with your paste. [We assume you do not p
Electronics Forum | Tue Sep 05 16:26:53 EDT 2006 | Bill
Thinking about this auto-mode on Grid-Lok..... Ok, the board is warped, lets say positively, the pins conform to the warped board... what about the effect on top side and squeegee pressure? It will be much higher and could damage stencils, right? Pos
Electronics Forum | Wed Jun 03 16:26:37 EDT 2009 | wisch123
The most innovative new technology today is ccoming out of Fuji. They don't really advertise, so if you haven't gone to a show lately you might not have seen it. The machine is call the XPF-W and it sets the new standard for quality, accuracy, reliab
Electronics Forum | Fri Nov 18 16:26:17 EST 2011 | olddog
Hi again Bob, I checked the theta motor coupling and the set screws are definately tight. I noticed that the theta motor drives an snti-backlash gear (nice design) so there is no play there. It appears that the gear drives a slotted shaft which is d
Electronics Forum | Tue Apr 29 16:26:59 EDT 2014 | hegemon
Our facility is 5 years in the current configuration. We are in 75K sq/ft and went with glued down fully conductive tile throughout the factory. Looks great after 5 years, and we have a lot of traffic. In this setup, those same high traffic area
