Electronics Forum | Wed Sep 23 13:27:55 EDT 1998 | Dave F
All y'all, We use two methods to secure/stake jumper wires to boards: 1 Jumper wires that "magically" bond themselves when heated with a "U" shaped tip on a soldering iron. 2 Loctite 382 Tak Pak We use Tak Pak "99&44/100ths" more often than the "magi
Electronics Forum | Sat Aug 22 00:23:10 EDT 1998 | Arul Vanan
We are using PCBs of CEM3 Material with bare copper fiducials. The whole board is of bare copper with a lacquer coating (Coats brother S2974). The fiducials are of 1 mm diameter bare copper. we use Panasert MV2F as well as Fuji CP4-3. In both the m
Electronics Forum | Thu Sep 10 09:21:27 EDT 1998 | Y.F. Michael Kou
| We are using PCBs of CEM3 Material with bare copper fiducials. The whole | board is of bare copper with a lacquer coating (Coats brother S2974). | The fiducials are of 1 mm diameter bare copper. we use Panasert MV2F as | well as Fuji CP4-3. In bo
Electronics Forum | Sat Aug 22 00:11:49 EDT 1998 | Arul vanan
We are using PCBs of CEM3 Material with bare copper fiducials. The whole board is of bare copper with a lacquer coating (Coats brother S2974). The fiducials are of 1 mm diameter bare copper. we use Panasert MV2F as well as FUji CP4-3. In both the mac
Electronics Forum | Tue Apr 07 18:05:40 EDT 1998 | Roxanne Picou
| Looking for Cleaning solvent to claen missprinted PCB, that will be good for paste (CS) and glue (PS). | One that is easy to evaporate with out leaving | white powder around component leads on CS (when cleaning PS) Solder paste cleaning can be acc
Electronics Forum | Thu Sep 20 01:13:05 EDT 2001 | Michael Konrad
Hi Dave, It may be. DI water alone will not build up residue. It can attack the finish of electro-polished (mirrored) stainless steel though. I have seen a white / chalky buildup on poly inline cleaners, usually isolated in the wash section. The
Electronics Forum | Mon Oct 08 23:17:48 EDT 2001 | Brad Arnold
We are trying to produce a PC Card bus assembly with a 672 pin BGA on one side. These pcb's are .015 thick. I believe the ball pitch is .5mm. The pcb's are plated with white tin. The pcb's are in a 1 X 3 array. We had 2 plates with appropriate cutout
Electronics Forum | Thu Oct 18 06:29:20 EDT 2001 | Yngwie
Dave, yes, your assumption is right, We only do washing after the second reflow. The timing from the post primary reflow to wash is no longer than 2 hour. The line config is as such : DEK265 � 3x MV2F- 1x MSF � BTU - AOI � DEK265 � 3x MV2F � 1x MSF-
Electronics Forum | Wed Nov 28 18:24:05 EST 2001 | mparker
Back in the days when pots, skillets, etc. were made of cast iron, vegetable oils were used to "season" the iron to prevent rusting and also from the food sticking to the pot during cooking. It would be reasonable to believe that you could use the sa
Electronics Forum | Thu Jan 03 08:02:53 EST 2002 | davef
Slump is a function of the particular paste you select and the temperature of the paste. Use a slump test like the one that follows to compare fluxes. Slump Test Step Process activity 1 Print paste on white ceramic substrate or microscope sli
