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 | Thu Jun 17 10:20:15 EDT 1999 | Brian Wycoff
| | | Dear All, | | | | | | We are having a big debate over what is the industry standard in DPPM on the wave sodlering process. is a DPPM of about 800 satisfactory. As per our big bosses it should not be more than 50 DPPM. Is the figure realistic
Electronics Forum | Sun Nov 07 21:40:14 EST 1999 | Chris
I am looking for an inertable reflow oven which will produce ROLs of less than 10 ppm. My current reflow oven will reduce oxygen levels to 10 ppm but only when using excessive nitrogen gas (4000 scfh). In reality less gas flow may reduce oxygen lev
Electronics Forum | Fri Sep 11 09:45:39 EDT 1998 | Earl Moon
| I'm very familiar with the great board space savings of BGA and all the "claims to fame." However, can someone out there tell me if any concern exist in the inspection realm. Additionally, solder cracking, CTE/TCE mismatches, no leads for stress re
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 | Sat Apr 21 07:05:32 EDT 2012 | doremi
Hello sergio, Probably it is too late to answer to your question, but I can not withstand to say some good words about Omron AOI. I'm located in Europe, 6 years ago our company wanted to make some Japanese manufacturers like Mazda & Toyota our client
Electronics Forum | Wed Dec 30 17:20:40 EST 1998 | Marc P.
| Does anyone have angles on how to reduce N2 consumption at reflow process (i.e. process control equipment, etc.)? | | Any help would be appreciated | There are a number of ways to reduce consumption: 1)One way to look at consumption is to view i
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 | Tue Oct 12 09:52:18 EDT 2010 | dyoungquist
Obviously a totally clean floor is the best. So what if you have 1 particle of dust on your entire production floor? Is that 1 part per million (1 PPM)? or is that 1 part per billion? or 1 part per ???? How do you measure dust and come up with a
Electronics Forum | Tue Mar 09 07:06:42 EST 1999 | Charles Stringer
| | | | I need to setup an oven to run with a nitrogen atmosphere for | | boards with BGA's, but our ovens do not have the optional atmosphere monitor and controller. Is there a good way to sample and control the atmosphere without the optional bui
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