Electronics Forum | Mon Jan 27 14:16:46 EST 2003 | russ
i have done this thousands of times. You are correct about no preheat, however it never seemed to be any issue for us. You do have to make sure that you do not expose any SMT comps. to the solder or they will become heat stressed/fractured. Connec
Electronics Forum | Thu Feb 13 12:57:43 EST 2003 | Claude_Couture
So, to really get reliable pickup rates from new bulk feeders, I just need to replace all the chip shooters we have with more recent ones with pickup correction capability. So where is the saving? ;-) -Upside down resistors? not an issue. so what if
Electronics Forum | Thu Feb 06 09:53:38 EST 2003 | genny
Actually, the most common reason I have seen vias in pads is for grounds in RF applications where the frequencies are high enough that you need a ground RIGHT THERE!... not .1" away. Vias and traces have RF properties of capacitance and inductance,
Electronics Forum | Thu Feb 06 14:47:50 EST 2003 | MA/NY DDave
Hi "some customers/designers want to have via holes to be present in the PCB pad, due to some belief that it helps in heat dissipation. " As I think about this I don't know exactly why they would be concerned. I can imagine in some exotic products
Electronics Forum | Fri Feb 07 16:36:30 EST 2003 | jonfox
About as good as you are going to get for a general (broad) package download is from the two dummy component companies listed. If you want something better and corresponds to the parts that you are using (not dummy parts) download the data sheets fo
Electronics Forum | Tue Feb 25 14:11:42 EST 2003 | MA/NY DDave
Hi, Good Notes from others. A few web sites of the piles available. http://www.imdmc.org Indiana Medical Device Mfgs Council http://www.mmda.org Michigan's http://www.raps.org Regulatory Affairs Professional Society The last time I was involve
Electronics Forum | Tue Mar 04 15:04:52 EST 2003 | MA/NY DDave
Hi Just had to poke back at this one. Good article David F, Thanks!! A little old yet still great. Hey ever used Pease Porridge from EDN. Modelling has come a long way in a short while, yet still the real physical reality and the desired electro
Electronics Forum | Thu Mar 06 11:37:17 EST 2003 | msivigny
Hello Phil, sorry for the confusion, because of our level of defect control and tracking at each process step, we did not use AOI systems at the time. We had a manual inspection station after reflow, then ICT and Functional/Final test for each produc
Electronics Forum | Tue Mar 04 18:49:06 EST 2003 | scifi97
Hi Mike, I have had a number of contract manufacturers, and SMT equipment makers looking at using our SPC software to monitor process control on SMT machine production with the data coming off the vision check machines. (There seems to be a huge sur
Electronics Forum | Sat Mar 08 11:04:47 EST 2003 | Joe
Mark, You've already received some good advice from the other posters. The one thing I would add is that even if you solve your printing issues on this type of part, the relative small quantity of paste may be prone to soldering problems. Ever s
