Electronics Forum | Thu Mar 17 11:26:21 EDT 2022 | proceng1
For MPM, PPM in New Hampshire is the best I've found for service. Now the absolute MPM guru recently left the company, but they still have good technicians and lots of parts.
Electronics Forum | Tue May 31 15:29:09 EDT 2011 | leemeyer
I have a QSP-2 which I assume is in the same family as the QSA-30. I compared the diagram that is in the service manual with a board from a 2-C and they appear to be the same. Your best bet would be to contact PPM at http://www.goppm.com. They shoul
Electronics Forum | Wed May 19 14:12:53 EDT 1999 | Glenn Robertson
| Folks, | I am interested in knowing what level of Nitrogen purity you are running in your reflow ovens for standard SMT assembly? | It seems over the last several years people are increasing the Oxygen level in thier reflow oven atmosphere. | What
Electronics Forum | Tue Sep 11 19:54:52 EDT 2001 | gsparka
HELLO. SMTNETERS there is no company in high mix low volume system in our contry so . what is the best way to calculate the capa. of smt line in high mix low volume. & what is the general way to get the defect rate to evaluate the smt line(or sm
Electronics Forum | Wed May 12 20:43:53 EDT 1999 | Earl Moon
| Folks, | I am interested in knowing what level of Nitrogen purity you are running in your reflow ovens for standard SMT assembly? | It seems over the last several years people are increasing the Oxygen level in thier reflow oven atmosphere. | What
Electronics Forum | Thu Dec 29 14:09:45 EST 2022 | proceng1
Your best source of parts and info for MPM machines is PPM in New Hampshire. George, who is the oracle when it comes to these printers is no longer with the company, but either Ed Sullivan or Steve Brown can probably assist you. I had a UP1500 and
Electronics Forum | Tue Sep 21 09:49:50 EDT 2004 | Pomponio Magnus
Has anyone ever seen the distributions that result when plotting percent voiding? (Typically a BGA will have enough balls that you can get oogles of data.) I have seen this and seem to be noticing a pattern. First, they are not all normal, so your
Electronics Forum | Thu Jun 20 18:56:31 EDT 2002 | stepheno
If you don't already have one, the best investment you can make in your case is a good thermometer/humidity meter. They are not at all expensive. Then record the temperature and RH about 4 times a shift. After a few weeks (maybe sooner) you can se
Electronics Forum | Wed Jan 14 08:24:07 EST 1998 | Allison
Good luck in your conquest. I have been struggling with the same issues for some time now. I have made the following conclusions. First, it is nearly impossible to establish parameters in SMT to perform X-Bar and R charts. Electronics is not as cl
Electronics Forum | Sat Sep 14 16:35:47 EDT 2024 | yannick_herzog
Defets per million opportunities: Number of defects per million inspection opportunities. It is best to ask your manufacturer how your machine calculates it. We use the defective parts to calculate the PPM. Kind regards
.gif)
.gif)
winsouce.jpg)