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BGA APATURE

Electronics Forum | Wed Nov 05 17:36:12 EST 2003 | Stephen

Make sure that the side of the square is the diameter of the pad, That is that the circle is inside the square not that the square is inside the circle. normally the aperatures are smaller than the pad to get gasketing. In this case the idea is to

Wastewater Issues with Saponifiers

Electronics Forum | Wed Nov 05 19:57:35 EST 2003 | Hoss

9.0. In it's spent form (from a batch cleaner) the cleaning solution is at a pH of 10.1. Luckily, we are setup with a holding tank and have an oppurtunity to treat the stuff before sending to drain. My question is, what is the easiest way to adjus

Is there some general file format for chip placement on pcb

Electronics Forum | Mon Nov 17 08:01:44 EST 2003 | stefwitt

The format is X,Y Theta of the component center for all placement machines. Gerber data can be useless, unless you have the reference from pin 1 to the component center. Some machines offer a CAD convertion tool. I don't know any machine, which can

Shelf life of electro-plated tin-lead on stainless steel

Electronics Forum | Fri Nov 07 15:57:56 EST 2003 | Marc Simmel

Are there specifications or recommendations for electro-deposited tin-lead plating thickness on austenitic stainless steel that would provide a shelf life of 1 year? 6 months? Would 2 to 3 microns (78 to 118 micro-inches) 90/10 tin-lead over 1.27 mi

Becafeful

Electronics Forum | Mon Nov 10 11:35:09 EST 2003 | simon66

Hello every member in the net. There is a con-man in this trading. Pls becareful. The one who read this know who you. YOu will not be able to locate him at all and ony he can locate you. I am not revealing their name now by giving them a chance to ex

LED (Ligth Emitting Diode) auto insertion equipment

Electronics Forum | Tue Nov 11 08:08:43 EST 2003 | Chris

Use a Radial lead inserter. you will need 1 head for each different part number you have. the machine cannsert 2.5 $ 5.o mm lead components and 7.5 with special to0ling. For LED you want to use a Radial with the new dual spocket CTA (Component transf

SM termination with Nickel barrier with 100% tin plated finish

Electronics Forum | Tue Nov 11 12:49:13 EST 2003 | Carol

Could you direct me to a Standard or Study that has used this termination with 67/37 tin/lead solder please? I am looking for the recommended reflow temperature requirements and reliability issues for the completed product. We are receiving this type

Solder Paste & RF products

Electronics Forum | Wed Nov 12 15:48:36 EST 2003 | johnwnz

Thanks for the info Dave, the link provides very interesting reading! btw, JohnW and JohnWnz are one and the same, I've moved down to Sunny New Zealand to ply my trade / skills down here and have soem fun in the sun while I'm at it. A move I'd total

voc free flux

Electronics Forum | Wed Nov 12 10:45:12 EST 2003 | johnthor

Absolutely, read the manufacturers MSDS. You do have it, don't you? We use Kester 971 and it reads Waste Disposal Methods: According to local regulations. Considered biodegradable. We did take the precaution of informing the local authorities and

Problem with Siemens HS180

Electronics Forum | Sat Nov 15 15:13:23 EST 2003 | Libor Kavan

I would like to ask you,if software in line computer and software for HS180's computer must be the same version or if versions of these softs are dependent on each other. Becouse error 154 (string is too long) occurs after transfer machine data from


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