Electronics Forum | Thu Apr 07 08:02:44 EDT 2005 | Grant
Hi, I used to run a clean room, and it's right, most of the dust is created internally. You will need to add some HEPA filtering to the area, and an air handling unit that can control temp and humidity as well to get correct environmental control.
Electronics Forum | Thu Sep 27 23:24:22 EDT 2007 | mika
Fe2+(aq) + 2e- "harply, but this is of no consequence since OH- ions are always present, even in pure water.) The cations then react with the OH- or even the H+ ions and dissolved oxygen to form a variety of compounds, which constitute rust: Fe2+(aq
Electronics Forum | Thu Sep 16 05:31:00 EDT 1999 | Earl Moon
| | Is feasible to have an electronic manufacturing company near the beach? How affect the corrosion the electronic components? | | | I guess it depends what you mean by 'near'. Will the building be a custom design or an existing one? What kind of p
Electronics Forum | Wed Aug 11 10:21:03 EDT 1999 | Brian
| Has anyone ever heard of this? I have a Camalot System 5000 and we were in a pinch to produce some prototype boards. We needed Sn62Pb36Ag2-no clean in a dispensing mesh. All I could get my hands on was some Interflux paste in a jar. The formulation
Electronics Forum | Wed Aug 11 11:54:50 EDT 1999 | Dave F
| | Has anyone ever heard of this? I have a Camalot System 5000 and we were in a pinch to produce some prototype boards. We needed Sn62Pb36Ag2-no clean in a dispensing mesh. All I could get my hands on was some Interflux paste in a jar. The formulati
Electronics Forum | Thu Jul 29 15:35:05 EDT 1999 | Earl Moon
| | While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That wou
Electronics Forum | Thu Jan 28 16:29:03 EST 1999 | Tom B
Okay, Another question, if the soldermask in not cured, then it is washed will water ingress (from wash or ambient ) play havoc with capacitance or dielectric of PCB. I mean will my crystal and clock circuits start "Y2K'n" on me. OR will my PCB go
Electronics Forum | Tue Sep 01 17:18:25 EDT 1998 | Dave F
| | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon bed, mixed resin bed
Electronics Forum | Sun Aug 15 05:45:15 EDT 1999 | Brian
Boca, Dave Sorry, but I cannot let this go. I'll go along with you that, at the time that the Montreal Protocol was initially signed (September 1987), there was no scientific proof that CFCs etc. were causing ozone depletion. There was, however, ve
Electronics Forum | Thu Jan 18 21:52:24 EST 2001 | arul2000
>>>>Dave, The BGA substrate surface finish is NiAu, while the PCBA pad surface is HASL. The solder ball composition is SnPb 63/37 and the solder paste used on the PCBA is also the same but with 2% Silver.>>> Dave, sorry I don't have the picture with
