Electronics Forum | Tue Sep 08 15:11:26 EDT 1998 | Mike Demos
Rich: In my experience, I have seen three cases of SMT Capacitors cracking: 1. Due to thermal shock when entering the wave solder. Note that these were 1210 package sizes on the wave solder side of the boards. We were able to trace this back to th
Electronics Forum | Tue Jul 28 16:13:45 EDT 1998 | Steve Gregory
| Hello everybody. | Remember I posted some questions on the smtnet regarding placing the thru hole connector using paste and reflow(pin in hole). I have able to accomplish the process succcesfully.....but I have a problem. The boards are failing at
Electronics Forum | Tue Jul 21 21:09:49 EDT 1998 | Steve Gregory
>Have you looked into legal crap like >>proprietary aperture designs. I didn't know it >>but some of these pick and place vendors >>actually have patents on things like pad and >>aperture geometry. Personally, I think that's >>crazy and shouldn't b
Electronics Forum | Wed Jul 22 13:59:52 EDT 1998 | Justin Medernach
>Have you looked into legal crap like >>proprietary aperture designs. I didn't know it >>but some of these pick and place vendors >>actually have patents on things like pad and >>aperture geometry. Personally, I think that's >>crazy and shouldn't b
Electronics Forum | Fri Jul 10 14:08:46 EDT 1998 | Wayne
| Hey there smd... | Don't worry, I don't think you'll be the company shmuck, or putz, or doofus, or bone-head, or geek, or ding-bat, or...or...(hmmm, can't think of anything else at the moment)...but you catch my drift, don't ya? I only mean that un
Electronics Forum | Fri Jul 10 14:08:46 EDT 1998 | Wayne
| Hey there smd... | Don't worry, I don't think you'll be the company shmuck, or putz, or doofus, or bone-head, or geek, or ding-bat, or...or...(hmmm, can't think of anything else at the moment)...but you catch my drift, don't ya? I only mean that un
Electronics Forum | Tue Jun 30 09:31:36 EDT 1998 | Earl Moon
| The SMTnet Forum archive listings are now available for public inspection. You can post messages from the archived messages, but it will not place your message in the archived listing. Instead, your message will be placed as a _new_ thread at the t
Electronics Forum | Tue Jun 16 09:15:56 EDT 1998 | Justin Medernach
| We are very concerned about microcracking in SMT P&P process. I want to know something about: | What is microcracking? | When did it occur? What are the causes? | How can avuid this phenomena? Toni, Micro cracks can be caused by a ton of conditions
Electronics Forum | Thu Jun 04 11:23:25 EDT 1998 | Justin Medernach
| What methods do people use to dress pads after removing and before replacing the BGA? | We use solder wick and a soldering iron, focusing on not "dragging" the wick across vias. This is laborous and booring. Who has a better way? | Dave F Dave, Her
Electronics Forum | Sat Jun 06 07:04:27 EDT 1998 | Dave F
| | What methods do people use to dress pads after removing and before replacing the BGA? | | We use solder wick and a soldering iron, focusing on not "dragging" the wick across vias. This is laborous and booring. Who has a better way? | | Dave F | D
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