Electronics Forum | Thu Aug 22 07:48:30 EDT 2002 | Dave Milk
While separating individual pcbs from a panel, operators have caused delamination of the edge of the board, at the tabs that were cut. How can these boards be repaired? The delamination causes them to fail J-STD-001C 9.2.1.1.d. Also, what would yo
Electronics Forum | Thu Sep 13 17:29:02 EDT 2007 | fnorradd
I am currently having a problem with uncut legs on one side of axial components from a universal dual head insertion machine. Initially it was thought that the anvil on one side was engaging slow so I stripped down and changed the seals in the botto
Electronics Forum | Mon Sep 21 18:57:23 EDT 1998 | Dave N.
Currently we are having an issue with our current PCB routing cutters in 0.125". It has come to our attention that the vendor has set the mean diameter to be .1235" +/-.001". As such, we recieve a number of cutters in the .1225 realm. This has caused
Electronics Forum | Wed Feb 18 22:20:05 EST 2009 | LH Ng
Hi All, Does anyone know if there is any standard equipment capable for Ceramic/Alumina based PCB depenaling (cut into odd shape)? I am aware of diamond saw cutter, but it only limit to straight line cut. Thanks. LH
Electronics Forum | Wed Aug 08 17:50:22 EDT 2007 | flipit
X7R >Z5U,Y5V Greater means less likely to crack or in other words NP0 is better than X7R for crack resistance. Don't think that there is a set formula. There isn't! I cracked ceramic resonators at 0.050" from the board edge with CAB M2 and M3 dep
Electronics Forum | Thu Nov 13 11:45:04 EST 2008 | pbarton
We have seen a similar problem. Turned out to be mechanical stress on the component caused by the method of location and clamping at ICT. Where is the component located on the assembly? Poorly adjusted clamping pillars on clamshell fixtures can cause
Electronics Forum | Tue Mar 18 12:38:39 EDT 2008 | fsw
Hi! Can anyone tell me what is the min spacing between PCB edge & land pattern to avoid cracking of components due to mechanical stresses caused while depaneling with cookie/pizza cutter. Thnx!
Electronics Forum | Tue Feb 28 16:58:39 EST 2006 | PWH
Too fast heating/cooling rate in reflow (look at mfg's spec.). Z "overdrive" on pick and place or chipshooter though unlikely I would say. Depanelization method (bending a scored board to break it is tough on things). Bad PCB design - cap. too clo
Electronics Forum | Thu Feb 05 14:33:32 EST 2004 | paul_bmc
I am in the process of programming my first PCB on the CS-400E machine and am having problems. I am too impatient to wait for the manuals on order so I thought I might see if someone out there might have some suggestions. I have done some research o
Electronics Forum | Thu Jun 04 22:18:40 EDT 1998 | David Newman
1/8" cutters, although they can only be used with our newer height-controlled machines. 3. Reduction of operating parameters. Reduced Z-axis plunge rates for the larger cutter sizes. 4. Addition of a 1/2 sec. dwell at the plunges. The small pause he
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