Electronics Forum | Wed Nov 17 15:04:27 EST 2004 | russ
SMT assembly, First, you must utilize paste otherwise the parts will not stay put. Do you have any leaded devices such as QFPs or SOICs? Dispensing paste by hand is very difficult and time consuming for these types of parts. You can either dispense
Electronics Forum | Thu Oct 21 13:20:12 EDT 1999 | jacob lacourse
I was hoping to find a book that delt primarily on solderability of different metals, fluxes that are compatible with certain pastes and anything else along those line.
Electronics Forum | Mon Aug 07 21:59:10 EDT 2006 | davef
It's inductor [choke] number 511. Probably used for EMI suppression on the monitor line. Look here: * http://www.antennex.com/shack/Dec99/beads.htm * http://lists.contesting.com/_topband/1998-11/msg00165.html *
Electronics Forum | Fri Sep 18 07:59:38 EDT 2015 | mun4o
Thanks FCM, we remove the metal plate and make a new ferro-concrete base.Under foot put ESD rubber.Now machine working perfect - without any vibration. Thank you very much and success.
Electronics Forum | Thu Aug 27 09:58:45 EDT 2015 | fcmtechnician
Hi Take out the steel plate, is acting like a trampoline, oscillating with the machine movements! Is the machine leveled OK? The installation guys use 0.02/1000 Spirit Level ( leveler )? Let the machine on the concrete floor, try first on the top o
Electronics Forum | Fri Nov 08 18:36:31 EST 2002 | leeloo
Nowadays I have a problem, I am in chsrge of the section of smt in my company, have a normal process inside my department with a minimal level of mistakes, the problem happens when the material is liberated to the lines of production on happened for
Electronics Forum | Fri Aug 14 07:52:03 EDT 2015 | mun4o
Hi all, 2 weeks ago we installing a new P&P machine - chip shooter.But , after installation proved that vibration of the new P&P arе very strong.If I use mashine to 100% of the speed the machine vibrating and after 2-3 panels moving 3-5 mm.The machin
Electronics Forum | Mon Nov 11 11:42:26 EST 2002 | MikeF
Like Mark, I'm guessing your problem is with SMT parts on the top side, the solder is re-melting and some of the parts are moving around during when the board is being wave soldered. When I had some training on thru hole wave soldering way back when
Electronics Forum | Wed Mar 01 13:06:36 EST 2000 | Graham Naisbitt
$100K for a full in-line. We can do conventional spray at 30 to 50% less but you must mask components you don't want to coat. If they are on 1 end only of the board, then dip coat which is the least expensive option starting at around $12K for up to
Electronics Forum | Wed Mar 01 13:06:36 EST 2000 | Graham Naisbitt
$100K for a full in-line. We can do conventional spray at 30 to 50% less but you must mask components you don't want to coat. If they are on 1 end only of the board, then dip coat which is the least expensive option starting at around $12K for up to
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