Electronics Forum | Sat Oct 19 08:06:06 EDT 2002 | johnw
You know I knew I used this forum for a reason, probably the most complete knowledge base going. I too use Indium and yoru right the minite you hit any stuborn oxides then your bust. The problem however is that the customer tends to dictate what we
Electronics Forum | Fri Oct 18 07:56:26 EDT 2002 | cyber_wolf
I have a question to pose for all of you. We use BTU TRS ovens for all of our SMT reflow. Anyone that has had any experience with these ovens knows that they are large and the have a lot of " thermal mass" Which means to me that they are very stable
Electronics Forum | Sat Oct 19 08:14:27 EDT 2002 | johnw
The world of the CM isn't alway's a happy one and the problem is that some one else is alway's paying your wages, that soemone else beign the customer so you really have to do what they say. The board profilign one is a constant one round our place a
Electronics Forum | Fri Oct 18 16:24:05 EDT 2002 | russ
Big BIG BIGG wave with a lot of preheat capability both top and bottom. You may need to exceed the standard "100 C" top side preheat to 120C or so (be aware of any topside SMT going into reflow over the wave). A spray fluxer with very fine atomizati
Electronics Forum | Fri Oct 18 17:47:37 EDT 2002 | russ
What is the determination of poor soldering fails pull test, non-wetting, visual)? I have never heard of an SMT component that has leads higher than the body of the component. Refer to IPC 782 3.6.1.7 it provide the guidelines for SMT standoff heig
Electronics Forum | Mon Oct 21 13:40:05 EDT 2002 | slthomas
Is it safe to use the 100M ohm value found in Table 2 of J-STD-004 as a minimum for SIR with respect to flux specification acceptability? It (J4) appears to imply that that value provides some level of acceptability, but it just doesn't come right o
Electronics Forum | Tue Oct 22 13:28:03 EDT 2002 | slthomas
Brian, Since the change, I have seen numerous instances of extra zeros being added to numeric values, typically those of 3 (original) characters or more. Case in point, a contribution by our friend Mr. Fish that I have cut and pasted: "The steadfa
Electronics Forum | Thu Oct 24 17:20:07 EDT 2002 | bdoyle
Here let me try this out. There are some special characters that have certain html codes. Quotes are an example, same with trademark references...and degree symbols. This should be a degree symbol: ° so I could write: 99.9° Now, to use this yo
Electronics Forum | Tue Oct 22 14:57:18 EDT 2002 | Jim M.
I use a water soluble flux to solder an LCD into gold plated through holes of a .031 circuit card. Problem is the current water soluble flux (850-33) is not made anymore (the drop in replacement has a different formuala and does not work). The main i
Electronics Forum | Tue Oct 22 15:32:09 EDT 2002 | ruppertg125
We are a military contractor and need to build to IPC610 class3. We are receiving many parts with palladium leads and currently use a No-clean solder paste. We have evaluated OA pastes with very little improvements. Without a touch up of all leads th
