Electronics Forum | Wed Jul 09 14:47:39 EDT 2014 | deanm
I'm looking for a typical SMT placement defect rate from others in the field so I can judge whether or not we are in an acceptable range. If I give you a board with 200 components (0603, 0805, SOICs, 20mil MSOPs, tantalums, DPAKs and a few 20mil fin
Electronics Forum | Tue Nov 08 12:05:57 EST 2016 | aemery
Lachrymal, Where are you getting that from. Let me keep this simple because there can be so many variables in modern printing, some you can control and some you can't. Unless you are designing your own PCB's where you can decide how to orient the co
Electronics Forum | Thu Sep 13 17:57:59 EDT 2001 | davef
You're correct. It is curious. Possible angles to look at are: 1 WS609 loves moisture in the air. In high humidity shops, this paste hakes-on liquid. If this is the case, you should also see slumping, resulting in fine pitch bridging, and solder
Electronics Forum | Wed Jan 16 07:49:14 EST 2002 | Yannick
Hi, In few weeks I want to test the capabilities of our SMT Line. To do that I'll design a board. I want to test: - The Printing - The component placement - The soldering - Different stencil aperture - Mixed Technology (Thr
Electronics Forum | Sat Dec 17 15:58:57 EST 2005 | Mika
We are also interested in this, but where can we find the dimensions? We have thouht about some kind of a guideline to simplify the way of how we do the "Matrix tray numbers" input to our fine pitch machine. We do a lot of prototype production and ev
Electronics Forum | Thu Nov 29 15:08:56 EST 2007 | jaimebc
Shy, You mentioned that you are using "dog bone" apertures for your chip components? It doesn't make sense to me. I thought that the "dog bone" was used for fine pitch devices, to keep the solder away from the center and avoid bridging. It doesn't
Electronics Forum | Thu Jun 28 21:34:29 EDT 2001 | davef
Doesn�t the 45� squeegee angle bollix yer fine pitch printing?
Electronics Forum | Thu Jul 15 12:35:19 EDT 1999 | Earl Moon
| I use a Transition Automation Semi- Automatic stencil printer with laser cut frameless stencils. My solder paste is an SN63/PB37 RMA 291. I do not operate with in a controlled humidity enviroment. The room temp generally runs around 70 deg's but hu
Electronics Forum | Mon Dec 22 19:45:55 EST 1997 | Kevin Searfoss
Looking for equipment or a company that performs lead straightening on fine pitch QFP's. Any info would be appreciated.
Electronics Forum | Tue Dec 23 15:07:18 EST 1997 | Kevin Searfoss
| Looking for equipment or a company that performs lead | straightening on fine pitch QFP's. | Any info would be appreciated.
