Electronics Forum | Thu Mar 27 11:39:27 EST 2003 | kenlchin
Hi,mantis, I has experienced this case.when we run a model ,misalignment and tombstone of some 0805 resistors and 1206 caps always occured.we have taken many actions,such as adjusting reflow parameter&printing parameter,checking pcb and parts soldera
Electronics Forum | Thu Nov 03 00:14:11 EDT 2022 | bin4ry2
Can anyone help to identify this little tan/brown colored pcb part? (The one labeled GND) I believe it's called an SMD ceramic capacitor but could certainly be incorrect. There don't appear to be any marking on it so beside the tan color, picture qu
Electronics Forum | Fri Apr 29 15:14:52 EDT 2022 | glasscake
second the kapton tape. Another tape we use alot of is powder coat tape (a tan color) because it has excellent heat resistance and a good adhesive that does not leave residue.
Electronics Forum | Wed Sep 13 20:58:50 EDT 2000 | Dave F
If you don't know what you have, how the blank are we sposed to tell you? Try your local fab. CEM1 - Opaque tan CEM3 - Translucent FR2 - Opaque brown FR3 - Opaque cream FR4 - Translucent FR5 - Translucent FR6 - Opaque white G10 - Translucent G11 -
Electronics Forum | Mon Apr 12 01:15:43 EDT 1999 | CS Tan
Dear Sir/Madam; Can I get any information from SMTnet on manufacturer's representatives in USA? We are a mid-sized full service contract manufacturer and would like to get in touch with some reps in the North American region. Please advise. Thanks an
Electronics Forum | Sat Mar 04 13:26:41 EST 2006 | jldowsey
Something unusual happened yesterday, we reflow soldered two boards with white silkscreen legend, and they came out of the oven with purple silkscreen legend. Not tan or brown from overheating, but purple. The boards were reflowed on their normal pr
Electronics Forum | Fri Sep 02 16:30:02 EDT 2011 | duso02
Rich That is a standard reaction with Humiseal 1A33, nothing to worry about. Find a board that was coated over year ago and had been heated up at all and it will be an amber color. It does not violate the IPC for discoloration. We have coated boards
Electronics Forum | Wed Dec 13 20:42:57 EST 2000 | Dave F
Material Dk @ 1GHz tan d @ 1GHz Difunctional 4.40 0.020 Multifunctional 4.43 0.018 Polyimide 4.06 0.006 Cyanate ester 3.65 0.005 Bismaleimide triazine 2.94 0.011 PPO-epoxy 3.85 0.012 PTFE-glass 2.60 0.001 PTFE-mat-CE 2.79 0.003 PTFE-ceramic 4.06 0.00
Electronics Forum | Mon Jul 30 09:31:46 EDT 2001 | kennyhktan
Dear All, I'm now facing with 0805's component missing problem at the production after mounting. In able to containing the defect I'm been trying to increase the soldering strength by changing the stencil thickness from 6mil to 8 mil on a step do
Electronics Forum | Thu Dec 02 01:24:57 EST 1999 | CS Tan
Hi Dick; I don't know what business you are in. If you are doing your own products, then outsourcing can be a very good decision. But if you are doing OEM for someone else, then you must invest in SMT if you want to stay in business. But from my expe
