Electronics Forum: (80) (Page 11 of 85)

BGA rework

Electronics Forum | Tue Mar 09 19:40:55 EST 2004 | Vijay

The shorts happen at corner of the BGA. The PCB thickness is 1.6mm, It is a PC motherboard with all thru hole connectors mounted on.The preheating is done using IR heater and the temp is 120-160 for about 70-80 sec.I am using ERSA IR550A

Washing Machine Selection Updates

Electronics Forum | Tue May 11 22:45:22 EDT 2004 | lawrento

Good Day Forumers, Currently using Electrovert Aquastorm 80 since 2000 and looking for new/aditional due to business expansion requirement. Would appreciate forumers experiences and comments on latest updates for PCBA Washing Machines selections in t

SMT tact time

Electronics Forum | Thu Aug 26 12:06:53 EDT 2004 | loz

I think realistically any speed quoted by any manufacturer should be down graded to 80% of what they quote. This should be used as top end, then the component, feeder count and complexity will start digging into this. As for achieving 75% of book spe

large bga (55mmx44mm) capable placement machines?

Electronics Forum | Thu Sep 09 04:19:27 EDT 2004 | Simon UK

I think if the machine has the capability of multiple fields of view (Quad systems do!) You can mesure any device with the visual camera to circa 80mm2. Simon

smt sizes

Electronics Forum | Fri Dec 31 03:04:24 EST 2004 | Colin G

0805 is 80 thou by 50 thou. As there are 40 thou per mm, this is therefore a device which is 2mm by 1.25mm, i.e., a 2125 Cheers, Colin...

feeder pitch

Electronics Forum | Tue Feb 15 11:55:55 EST 2005 | Rob

Of course Greg, silly me, you could have been referring that other C5, the infamously crap Sinclair C5 electric car from the 80's!

Granite Surface and ESD

Electronics Forum | Wed Mar 30 10:08:15 EST 2005 | steve

Granite is a porous material and if anyone decided to clean this material you probably have an insulative barrier thus you would never have static dissipation. Spend $45.00 and put a mat over the granite or spend $80.00 and get an esd laminate materi

Stencil Rolls

Electronics Forum | Thu Jun 02 19:42:24 EDT 2005 | garymizuno

I'm still buying my solder printer cleaning rolls from my manufacturer. Does anyone know of any after market brand that is as good in quality and atleast half the price. I am paying $80.00 a roll. Gary

BTU oven problem

Electronics Forum | Thu Jun 09 07:23:03 EDT 2005 | ajaydoshi

We have BTU150 paragon. Frequent failure obseve in cooling fan capacitor. Cooling zone temperature reach up to 80 degree centigrade How to prevent same. ajay

ENIG switch contacts

Electronics Forum | Sun Aug 07 19:43:55 EDT 2005 | Tom B

I usually Spec out 20- 30 uinches of gold over Nickel (50-80 uinches). If the most conduction is needed use Immersion Silver, about 12-20 uinches). Tom


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