Electronics Forum: z and rate (Page 10 of 19)

YesTech F1 AOI false calls and misses

Electronics Forum | Wed Apr 04 13:33:12 EDT 2012 | rway

We currently have 2 M1 systems. Our false call rate has never been has high as you suggest. There is something wrong with your program and/or inspection algorithms, as you probably already know. You should be somewhere between 1000-1500 vcpmo (fal

CCGA - Stencil design and Reflow Profiling

Electronics Forum | Wed Jul 31 07:51:31 EDT 2019 | ameenullakhan

Hi Dave, lead is 80Pb/20Sn. Top joint off CCGA lead is SN63/Pb37. Thermocouple was placed at center lead of the CCGA and one at the corner lead of CCGA. Ramp Rate Center 1.09 Corner 1.26 Soak ( 140 - 160 deg C ) Center 37sec Corner 38sec Ref

Compressor for Pick and Place line

Electronics Forum | Tue May 26 10:52:02 EDT 2020 | spoiltforchoice

No idea, could be a weird translation error, but its certainly something I have seen . For an FLX they just ask for this "5-6 bar, clean, dry, oil free, filtered 2 µm, connection diameter 8 mm", 40litre/min Personally I would go with a mo

Indium No-clean and Inert Reflow oven (N2)

Electronics Forum | Thu Aug 01 13:04:57 EDT 2002 | gdstanton

Its interesting. It appears I'm getting conflicting feeback from Indium. This says its not a problem... http://indium.custhelp.com/cgi-bin/indium.cfg/php/enduser/std_adp.php?p_sid=kTDKGClg&p_lva=&p_faqid=355&p_created=1014734692&p_sp=cF9ncmlkc29

Thinking of Led lamp and resistor

Electronics Forum | Fri Oct 28 04:56:12 EDT 2016 | lilybell

I read a few posts here about resistor in led applications. The thing is, the resistor has clarified as this shows:was always use with a power source delivering a higher forward voltage than the led could tolerate(ex: a 9volt battery hook up to a 3w

YesTech F1 AOI false calls and misses

Electronics Forum | Thu Apr 19 20:01:30 EDT 2012 | eadthem

some things to consider, Is there flux on the board. are there finger prints on the tops of parts. Is the board warped at the V score from reflow Is the board shifting in the machine during inspection. These are the issues we have had with our mir

Re: Bow and Twist of PCB's

Electronics Forum | Wed Aug 19 08:00:55 EDT 1998 | Earl Moon

| Hi there, | I'm actually facing a lot of trouble with PCB's presenting up to 3mm of bow /twist at reception i.e. before assembly. The PCB size is 220 by 230mm. The boards are to be assembeled SMD double sides with 05.mm pitch on both sides. In orde

Multitroniks, Quad System and Tyco Info

Electronics Forum | Wed Aug 01 09:36:17 EDT 2001 | Pete Barton

Jay, > > I agree with your assement and Chips on > the Quads. I once worked at a shop that had Quads > and DynaPerts(at the time) The perts were > slower(TIME) and required(EFFORT/PEOPLE) more > MAINTENANCE(more effort more people and more > re

Process control, SMT inspection and rework

Electronics Forum | Tue Apr 09 21:40:26 EDT 2002 | ianchan

We are a local enterprise with limited resources, just like you described, so hope this experience sharing helps : we place a production Visual Mechanical Inspection (VMI) inspector at the end of each Reflow Oven area, complete with magnify scope 30

ultra low cost pick and place?

Electronics Forum | Sat Jun 12 19:48:47 EDT 2010 | bootstrap

I like what you're doing. 20 years ago anyone, hobbyists and tiny garage-shop companies could create electronics devices just as sophisticated and cool as big corporations. Today, SMT has largely trashed the creativity (and competition) that existe


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