Electronics Forum | Fri Oct 01 09:47:36 EDT 2010 | noid
Yes, they should be baked prior. We pre-bake all polyimide fabs, flex or not. They are prone to delam.
Electronics Forum | Fri Oct 01 10:07:14 EDT 2010 | mazjal7
Thank you Noid, Is the baking process product specific are they any guidelines/standard procedures? Any recommendations are appreciated. Thanks, David
Electronics Forum | Fri Oct 01 13:09:18 EDT 2010 | clampron
Good Afternoon, How is the stiffener adheared? If it is laminated to the flex, it may help you with the surface planarity through reflow. If it put on with PSA, it may cause more problems then it would solve. PSA gets soft through the reflow. It may
Electronics Forum | Wed Sep 29 15:28:45 EDT 2010 | mikesewell
Are the TH parts on the topside hand soldered then? Why not print-place-reflow the topside SMT cap first then run the bottomside through the same process? It is normal, although not preferred to solder SMT parts on by hand. A 1206 should not be di
Electronics Forum | Wed Sep 29 17:42:08 EDT 2010 | asksmt
TH Parts are hand loaded - some are wave soldered and some hand soldered. smt 1206 on top side can be reflowed as you suggested but it's addition of one more step of reflow cycle in process for production. and i think that's why they are reluctant
Electronics Forum | Thu Sep 30 17:33:02 EDT 2010 | davef
Sure. Doing what you're talking about will blank their process metrics, regardless if it's done manually or by machine.
Electronics Forum | Mon Oct 04 09:27:43 EDT 2010 | floydf
We have found that the lenses on the Rebels have are gooey and sticky. We put a little bit of WD40 on the shutter part that contacts the lens. Just a little bit. Basicly, put a drop on and try to wipe it all off with a paper towel is enough.
Electronics Forum | Thu Sep 30 10:56:03 EDT 2010 | jdengler
Does anyone have a Fuji CP-IV-3 Feeder parts list manual? If you have it in electronic format that would be best. If you have a hard copy that you want to sell I would be interested also. Thanks, Jerry
Electronics Forum | Thu Sep 30 16:16:14 EDT 2010 | vetteboy86
Were doing double sided, and I'm told our PCB finish is tin silver. From a quick search I'm finding that for double sided assemblies we would be better off using ENIG.
Electronics Forum | Thu Sep 30 16:54:33 EDT 2010 | 18424
Enig have been one of the industries leading finishes with great solderabilty and shelf life, And now Immersion Silver is starting to get popular.
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