Electronics Forum | Tue Aug 12 10:42:55 EDT 2014 | emeto
This is not desirable
Electronics Forum | Tue Feb 21 09:19:50 EST 2006 | Chunks
Hi Mark, Not to be condescending, but is your 265 camera in focus? I've seen one instance of this. If it�s not the camera, and you are sure all your other parameters are good, , then poor definition can be from bad snap-off or bad gasketing. Snap
Electronics Forum | Mon Aug 11 21:49:37 EDT 2014 | cmchoue
You mean that is void size or area can't cover via hole?
Electronics Forum | Mon Feb 20 17:12:54 EST 2006 | mark
Hallo all, I have recently had possibility to work with DEK265. I have met with problem poor print definition (no sharp edges). I used stencil 150 thickness, metal squuegees. I moved than the same stencil, squeegee and parameters to DEK nifinty and
Electronics Forum | Mon Feb 20 20:47:59 EST 2006 | davef
We assume your stencil is clean. So, try: * Reduce stencil separation speed. * Reduce squeegee pressure. If the pressure is not proper, excess number of particles are stuffed into an aperture and inner pressure / friction among particles increase, an
Electronics Forum | Mon Aug 11 08:15:15 EDT 2014 | emeto
there is no clear percentage for the total voiding, but I know that single voiding shouldn't cover two via holes(defect)
Electronics Forum | Wed Feb 22 16:55:04 EST 2006 | mark
Hi, We are not using vaccum caps. The support pins for both printers is the same ande cover all board (components only on Top side of the PCB). I will check snap-off (right know setting 0.2-04. mm/s). I also suspected poor gasketing but clamps are o
Electronics Forum | Wed May 17 03:03:57 EDT 2000 | Roni Haviv
Hi, Can anyone give me it's definition of PCB separation V-cut (dimensions): 1. V-cut Angle. 2. Depth of V-cut penetration into the PCB. Thanks Roni
Electronics Forum | Sun Aug 10 21:57:25 EDT 2014 | cmchoue
Does IPC definition for "QFN Void Ration" ? Like IPC 7095 susgestion the BGA Void ratio.
Electronics Forum | Wed May 17 09:37:32 EDT 2000 | John Thorup
Hi Roni Point yourself toward www.accusystemscorp.com and you'll get what you need. There is much info in this forum's archive as well. Happy hunting John Thorup
