Electronics Forum | Thu Apr 09 00:12:02 EDT 1998 | Bonnie
| I am in urgent need of a pcb land patten (footprint)for this device. I have the component data sheet with with package dimensions from Motorola, but they do not include the recommended land pattern. I requested a patten over a week ago, but have
Electronics Forum | Mon Aug 09 16:37:14 EDT 1999 | John Thorup
| Just curious what effect pinholes and solder voids can have on solder joints that have high current passing thru them. Also could moisture from steam sterilization (autoclaving) get inside a said solder joint and then outgas during high current, an
Electronics Forum | Thu Sep 17 08:31:34 EDT 1998 | Dave F
| can anyone help with information about I-shape of SMDs. | our Design includes this shape of contacts. we are searching for information on quality judgement of solder joints with I-leads on Pads. Please help. Tom: I saw your earlier post. I'm not
Electronics Forum | Tue Jul 27 16:22:17 EDT 1999 | Earl Moon
| I'm working on a prototype board that requires a 600 pin BGA. This is a metal top BGA being placed on a 11" x 17" PCB about .62" thick. | | The part is 1.77" square with a 50 mil pitch and 30 mil bump diameter. The bumps are located on the
Electronics Forum | Thu Apr 09 09:25:04 EDT 1998 | Terry Burnette
| I am in urgent need of a pcb land patten (footprint)for this device. I have the component data sheet with with package dimensions from Motorola, but they do not include the recommended land pattern. I requested a patten over a week ago, but have
Electronics Forum | Fri Feb 02 21:31:38 EST 2007 | bill_gates
Hi, I am considering to use pressfit D-Sub and DIN connectors on a backplane. The IPC guideline does just cover pin protrusion for soldered pins, which have to be flush with the board as a minimum acceptable design. Yet, if the backplane may be thic
Electronics Forum | Thu Feb 08 00:40:37 EST 2007 | Scott
I think that as long as the compliant portion of the pin is completely in the board, pin protrusion should not make any difference. I have seen some large Aerospace companies internal specifications and the two requirements seem to be that the compli
Electronics Forum | Thu Jun 07 18:09:21 EDT 2007 | stephan
We noticed unsufficient soldering on some 0805 chips located between pins from a plastic bloc connector . All chips are soldered with 45� angle. Flux quantity , preheating , contact time and PCB quality was checked. Do you know any international stan
Electronics Forum | Mon Mar 24 15:20:15 EDT 2014 | kojotssss
Hello for all People's .I have a question. I have a problems with backup pin placement.When x/y robot tried to set up pins: we got a problem- X=-0.200 and y=-0.880 To my mind ther are a problem with air cylinder and axis.Any solutions?! can you c
Electronics Forum | Fri Mar 19 19:05:27 EST 1999 | Earl Moon
Folks, I think we are getting closer to being very happy with DEK stencil printers of the 265 GSX variety. However, problems continue arising concering fine pitch autoflex tooling pin breakage. We are told by the British engineering establishment,
