Electronics Forum | Mon Nov 27 12:17:02 EST 2000 | Dason C
Chris, you are not completely right. Our industrial is following the IPC standard as our guideline. Per IPC J-STD-033 has specify the floor life at para. 8 (normal condition at 30C/60%RH). If Victor can control his environment at 32% then the compo
Electronics Forum | Thu Jun 29 10:38:04 EDT 2000 | John Thorup
Hello Christopher I don't know if there is any kind of official standard but I can tell you that the HADCO DFM manual specifies a nominal thickness of 50-1500u" with an option for 100-1000u" and the Merix DFM manual specifies 30-200u" Our boards (fro
Electronics Forum | Wed Aug 23 16:18:47 EDT 2000 | Dr. Ning-Cheng Lee
I presume you are referring to vibration test with fixed frequency at room temperature. One procedure describing the detailed profile is in MIL-STD-883E, Method 2005.2 (12/31/96). The approximate profile can be described as 60Hz, 20-70g, and 96 hrs t
Electronics Forum | Tue Aug 22 14:59:55 EDT 2000 | Mike Naddra
What does the reflow profile look like , the question I had was surrounding the higher reflow temperature and the max temperature that lowest thermal mass components will see. Some other questions that I had were surrounding the components , what of
Electronics Forum | Thu Sep 16 17:22:16 EDT 1999 | DaveJ
We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a recomm
Electronics Forum | Tue Jun 22 08:52:09 EDT 1999 | Cunli Jia
| | | I swear I posted it! I smoked an entire cigarette waiting for the damn thing to upload! I'll try it again when I get home tonight. | | | | | | Sorry for the inconvenience. | | | | | | | | | | | regular or filter? | | I am having the same
Electronics Forum | Fri Nov 13 14:09:02 EST 1998 | Dave F
| Anyone using SMT "Fair-Rite" beads? We have a P/N 2743019447 that we're using. We need to know the shear force strength of the part and the vendor's man who knows is in Deutschland and can't help until Monday. I can't wait that long. | | Also, do
Electronics Forum | Wed Jul 22 16:00:24 EDT 1998 | David A. Pinsky
| Who knows something about the reliability of plasti PEMS and its enhancemant by application of conformal coating (Parylene, metal, SiO2, SiNxOx, etc.) ? We have performed failure analyses on PEM's in our lab for many years. The vast majority of pa
Electronics Forum | Mon Mar 16 09:02:07 EST 1998 | Justin Medernach
| We are going to try out a PCB manufacturer that has an Alpha Level for ensuring a flat finish on the PCB's. | I am interested to know if anyone has and experiences, either good or bad on how boards treated with this process are to assemble. Is the
Electronics Forum | Thu Aug 16 10:49:35 EDT 2001 | JohnW
Dave, we try and keep the temperture that a BGA is exposed to at wave solder below 150 deg C. At this temperature it's unlikely that you'll get near to starting secondary reflow of the device or that you'll grow any significant amount of intermetall
