Electronics Forum | Tue Apr 26 18:23:30 EDT 2005 | russ
How does your machine recognize the part? Does it use vision for ball inspection or a just a body scan? What is the aperture size on the stencil? Have you calculated the area ratio? What is the aperture shape? What type of paste are you using? is
Electronics Forum | Wed Apr 27 07:16:40 EDT 2005 | jdumont
Thanks a lot guys. The part dims are in mm by the way. So last night i was looking at the .pcb file and saw that the pad size and stencil are both .013" while the ball on the BGA is .018" (sorry for switching from metric). Is this ok or can i have en
Electronics Forum | Thu Jan 14 15:22:14 EST 1999 | Earl Moon
| Steve, | Whoa, take a breath! That was at least a dollar three-eighty answer. I've got to agree that nothing can replace a qualified, concientious operator for assuring quality. When I too worked at a small shop there in SillyCone Valley, my
Electronics Forum | Thu Jan 14 11:08:29 EST 1999 | Mike McMonagle
Steve, Whoa, take a breath! That was at least a dollar three-eighty answer. I've got to agree that nothing can replace a qualified, concientious operator for assuring quality. When I too worked at a small shop there in SillyCone Valley, my seni
Electronics Forum | Sat Oct 07 04:02:50 EDT 2000 | C.J. Long
Good morning, All: I am from PCB shop and one of our customer is experiencing solder bridge on 16 mil pitch QFP( immersion gold finish). Land width requirement is 8 +/- 1 mil measured over top of of land and our mean is 7 mil. Bottom land width is 8
Electronics Forum | Wed Apr 27 01:20:22 EDT 2005 | Frank
Are you sure about your dimensions? .45mil ball diameter and .8mil pitch, and a body size of 16x8mils is really, really tiny. I assume you mean millimeters and not mils? 1mil = 0.0254millimeters If your stencil is 5mils and your ball diameter is
Electronics Forum | Thu Jan 28 22:27:00 EST 2021 | emeto
Nowadays is not a big deal to cut step stencils. Stencil houses charge you around 100USD per step in addition to your regular price. Some places are welding the step area with a very small clearance and I have to say mostly it is pretty accurate. In
Electronics Forum | Fri Oct 25 11:21:05 EDT 2002 | soupatech
This may sound like a stupid question but keep in mind I am very new at this and most of the training I have recieved has been from operation manuals and this forum (thanks to all). Our purchasing agent (new hire) is ordering a stencil for the first
Electronics Forum | Thu Jul 09 22:45:42 EDT 2015 | cathy247
Hello Maxim, we offer below services with Popular Competitive Pricing: －Express PCB Prototyping(2-28 layer) －HDI PCB －Flexible Printed Board(1-8 layer) －Flexi-rigid Printed Board －High Frequency Board(Rogers,Arlon,PTFE) －Blind/Buried Via Board －High
Electronics Forum | Sun Nov 21 13:48:16 EST 1999 | Steve Thomas
We're going to 5 mil foil from 6 mil, with a 10 mil aperture, radiused corners. Supposedly going to traps. from right angles, but who knows? We've got temp. controlled at ~73F, but no RH control. We are going to also try out a more humidity toleran
