Electronics Forum | Mon Aug 14 01:49:14 EDT 2000 | Joe
G'day, I am interested in hearing about the automatic lubrication of the chains in a reflow oven. The systems I have seem to work to a certain degree. They either lubricate too much, so we end up getting oil on the edges of the PCB, or not enough, w
Electronics Forum | Mon Aug 14 11:18:42 EDT 2000 | Chris C
There are two similar products, Eureka and McDry dry box units and other nitrogen required units in the market. Both Eureka and McDry are not required Nitrogen, I'm seeing a cost saving there in the long run. I have several Eureka dry box in the faci
Electronics Forum | Fri Aug 11 06:48:38 EDT 2000 | GJ
I am currently building boards which have to be conformal coated (done by an outside source) in a no clean process. The conformal coating however, must be applied to a clean surface. The flux residue left from the paste has come into question. I h
Electronics Forum | Thu Aug 10 13:36:48 EDT 2000 | Bob Willis
I recently have been examining multilayer board failures. They are the classic inner connection failure between the foil and the through hole plating which I have not seen in many years. Has any one experienced any issues recently specifically relati
Electronics Forum | Tue Aug 08 21:00:24 EDT 2000 | Dave F
Shawn: You're correct most solder preform manufactures don't want to sell preforms without skinning you alive for tooling charges!!! Considering alternatives, can you print or dispense paste? It would be mucho cheaper. We've talked about using pa
Electronics Forum | Tue Aug 08 21:54:00 EDT 2000 | Dave F
Simon: Books that will teach you enough about printed circuit board fabrication to be dangerous, in no particular order, are: * Coombs "Printed Circuits Handbook" McGraw-Hill * Jawitz "Printed Circuits Board Materials Handbook" McGraw-Hill * Macleod
Electronics Forum | Mon Aug 07 07:59:49 EDT 2000 | John S
Dave, What type of wave solder are you using? How are the t-sots oriented relative to the direction of travel? You will get the best results with them oriented with the length of the body parallel to the direction of travel. You want the leads or
Electronics Forum | Thu Aug 10 13:30:54 EDT 2000 | Bob Willis
Solder skips on SOT23 parts is the most common issue when soldering surface mount designs. The two most common causes are the wave height too low or there is too much gassing of the flux as it contacts and seperates the wave. Stck some parts on your
Electronics Forum | Sat Aug 05 12:12:05 EDT 2000 | Ramon I Garcia C
Hello Friends: I'm new in SMT process, I have a problem with little balls of solder beside of the component, I'm tried reducing the apertures in the stencil and making home base, some times the balls desappear, but some time not, and some times
Electronics Forum | Sat Aug 05 09:22:34 EDT 2000 | Dave F
Stencil, Step Down. A stencil of varying thickness that allows printing different amounts of solder paste or adhesive. Most stencil suppliers make stepped stencils Step stencils are used when there are fine pitched device amoung coarse pitched dev
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