Electronics Forum | Wed Sep 20 22:19:06 EDT 2000 | Herman Koo
I am operating MPM AP HiE. The squeegee was just repaced with metal blade, side plastic deflectors(with spring) at both ends. The engineering dept suggested that we level the squeegee with the plastic deflector up. Afterwards, we loosen the screw and
Electronics Forum | Wed Sep 20 17:06:23 EDT 2000 | jackofalltrades
On the Vitronics/Soltec Wave Soldering Machines, we have no problems with the hot air knife (called a "Select X De-Bridging Tool" by Vitronics). We have both Delta's and Delta Max's. We have used both air and nitrogen with no problems. When using a "
Electronics Forum | Thu Sep 21 12:03:35 EDT 2000 | Boca
We have been using a hot air knife on Electrovert equipment for a few years. It must be set up properly for a given machine, primarily the distance from the trailing edge of the wave. Sometimes the set up must be adjusted for the assembly being sol
Electronics Forum | Wed Sep 20 14:19:26 EDT 2000 | Jason Wraight
I am sure that this is a problem that will never be solved, but something that I am seeing in increased numbers. Often refered to as "Black Pads". After production, returns from the field coming back with contaminated pads under various components.
Electronics Forum | Wed Sep 20 19:43:06 EDT 2000 | Dave F
Some RF components are made in copper in weird spiral and parallel strip-line shapes. I'd either: * Send the boards back to where ever you got them and tell that bird brain to use SM-782 pads and practices. ... OR * Get the bird brain that sent you
Electronics Forum | Tue Sep 19 22:15:53 EDT 2000 | Sophia
Hi guys, I have been working in the SMT pick and place process for five years, and now I'm responsible for the solder paste printing process, and one thing that I notice is that the actual process that we have is to poor, actually our main defects a
Electronics Forum | Tue Jan 23 10:48:05 EST 2001 | genglish
Hi kirks, I don't want to appear to be selling a product for a particular supplier, but we recently (six months ago) purchased a Kerry SC1000 stencil / misprinted cleaning system. We too were experiencing solder beads in via holes left behind after
Electronics Forum | Mon Sep 18 20:54:22 EDT 2000 | Dave F
Periodically, our operators insert PTH LEDs on boards incorrectly, because of an apparent lack of standardization in the way various manufacturers package LEDs. For instance, for alternate parts some manufacturers make: * Cathode leads long, some ma
Electronics Forum | Tue Sep 19 20:23:09 EDT 2000 | Arturo
99.70% mounting rates. 4.Make sure your machine can handle the recognition of this components (shape & height) usually height measuring(pick up error) is the biggest problem with resistors. 5.When mounting a real PCB you can have spacings up to 0.3mm
Electronics Forum | Mon Sep 18 19:58:10 EDT 2000 | Dave F
broad answer. There's tons of suppliers. Go to "Circuit Assembly" magazine web site and look-up flux suppliers in the "Buyers Guide." Broad line suppliers are Kester, Alpha ... They will make you answer: I'm joining bla, bla, bla metals, using b
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