Electronics Forum | Fri Oct 01 08:15:02 EDT 2010 | rgduval
Is the stiffener a piece of FR4, or a component that needs to be installed? We've done a number of flex assemblies taht have a rigid stiffener, generally a piece of rigid flex, or FR4 that has the components mounted on it. This type of stiffener
Electronics Forum | Wed Sep 29 11:32:02 EDT 2010 | asksmt
Hi, i have designed Double sided PCB all SMT Parts are mounted on bottom side and TH on Top Side. with recent testing we found that the decap needs to be placed closer to IC VDD-GND Pins. as i can't place TH Parts since i don;t have space on botto
Electronics Forum | Wed Oct 06 04:11:35 EDT 2010 | grahamcooper22
I've done minimal research to this point and > understand my issue with solder on the double > sided boards is due to oxidation that occures on > the unpopulated pads when the board makes its > first trip through the reflow oven. > > We did run
Electronics Forum | Thu Oct 07 08:13:52 EDT 2010 | remullis
I just swapped from the HASL to Immersion Silver mainly because the board house we use could not maintain consistency in keeping the pads level. I was constantly battling bumps and bad finishes on the pads. They are able to give me a consistent board
Electronics Forum | Thu Sep 30 16:28:51 EDT 2010 | 18424
Hello All, looking for some help from you guru's. I have several Enig boards with solderability problems. Components ranging from 0402's to ssop's. Using AIM W/S leaded solder paste, profile is beautiful and has been for years running the same produc
Electronics Forum | Mon Oct 04 10:02:09 EDT 2010 | babe7362000
I have a question about Drying a PCB after it goes thru the washer. Just wondering if others have to dry components off using air at the end of the wash? Our current process is that we wash the boards and dry certain parts off with the air hose aft
Electronics Forum | Wed Oct 13 06:20:00 EDT 2010 | costache
Dear All > > I need to check the solder paste > volume inside the PTH at our board,which size is > 440x620 mm.So, I may need 3D inspection > machine,AXI, not AOI.So, does anyone recommand me > which 3D machine is suited to my PCB? Thanks in > a
Electronics Forum | Fri Oct 08 06:54:04 EDT 2010 | plruzza
My factory is in front of establishing SMT production line. I have difficult task to select what machines we will buy. Unfortunatelly I don't have enough experience because so far we had through holes production only. On the market exist many produce
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 | Thu Oct 14 09:33:10 EDT 2010 | sachinnalbalwar
Hi All, Is there any way to use ROHS6/6 [Non-leaded] BGA device in Non-ROHS reflow [240 Deg C] temp. environment. I need to do this because Leaded [ROHS5/6] device I was using is obsolete and Non-leaded[ROHS6/6] drop-in-replacement part is availab
