Electronics Forum | Tue Sep 14 20:21:19 EDT 1999 | Pat Copeland
I am looking for help on doing smt equipment qualifications. I need to find some examples to follow. The equipment to be qualified is a Stencil Machine, Pick and place machine, and Reflow oven. We manufacture medical devices so it has to be somewhat
Electronics Forum | Tue Sep 14 13:49:14 EDT 1999 | Earl Moon
| I am looking to find a formula to calculate the resistance of circuit traces based on width | The old MIL-STD-275 became IPC-STD-275 became IPC-2221/2222. Anyway, they had/have simple graphic representations converting AWG standards into equivalen
Electronics Forum | Tue Sep 14 13:51:20 EDT 1999 | Earl Moon
| Is it possible to place 0402 components with a Fuji CP2? How about a CP4? What are the suggestions for 0402 machine placement? | | Any help would be appreciated. | Never had a CP2. Had limited success on CP4's. Do better with 6's and some newer
Electronics Forum | Thu Feb 24 05:17:02 EST 2000 | Sai Wong
From what I know, Fuji new CP 7 might handle the 0201 pretty well, also, if you get the upgrade kit for the CP6-42. they can handle the 0201 too. The second one can handle the 0201 is the new siemen HS model. I think not only the feeder`s, camera siz
Electronics Forum | Thu Feb 24 10:29:27 EST 2000 | Shravan Jumani
Iam doing some work with O2O1s and am facing tombstoning problems. From screening experiments I find that a N2 reflow results in more number of tombstones than in Air. Would appreciate anyones inputs on why this happens, or how I should tackle the pr
Electronics Forum | Thu Feb 24 10:29:34 EST 2000 | Shravan Jumani
Iam doing some work with O2O1s and am facing tombstoning problems. From screening experiments I find that a N2 reflow results in more number of tombstones than in Air. Would appreciate anyones inputs on why this happens, or how I should tackle the pr
Electronics Forum | Sun Sep 12 18:47:48 EDT 1999 | armin tan
Our GSM1 keyboard is defective and upon inquiring the price from a local distributor here in Australia, I learned that it's more than $600 Aus Dollars including freight. It's pretty expensive for a PC/AT mini keyboard. Has anyone ever tried using an
Electronics Forum | Sun Sep 12 03:50:13 EDT 1999 | Bach Huss
Hi All, Does any one out there have SPC control on Chip placement Machines? I was wondering what type of parameters we can monitor. We have Siplace here equip with SEC-GEM and a monitoring software. Just curious if anyone has done SPC on Chip placem
Electronics Forum | Thu Sep 09 08:25:26 EDT 1999 | Gyver
Hello everyone, Anybody know how to prevent EOS problem? Recently, we sent some defective IC components to original suppliers for further analysis, but the result is those parts were all damaged by EOS! Please somebody help us to prevent this issue.
Electronics Forum | Thu Sep 09 06:38:35 EDT 1999 | calvin
hi, i m college student. i m currently doing my Final year project in PCB drilling. the main task is to design auto feeder which allign the PCB properly in position before drilling take place. the close tolerance becomes a big problem to the precisio
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