Electronics Forum: differs (Page 81 of 578)

conformal coating

Electronics Forum | Mon Apr 04 08:45:42 EDT 2005 | jimih280

how does polyurethane used for wood floor coating differ from urethane conformal coatings sold for circuit boards? where can i get uv tracer to put in oil based urethane?

Non-wetting: PTH on double-side reflow

Electronics Forum | Wed Apr 06 11:54:24 EDT 2005 | Indy

did you try using double header connector pin of a different lot? Indy

Hair Line Solder Short at PTH Connector

Electronics Forum | Fri Apr 15 09:10:09 EDT 2005 | Dhanish

The biggest problem I am having is the X-Ray and ICT could not detect this shorts.ICT could not detect because onboard measurement shows Zero even without the Hair line shorts.With Hairline there is no difference in the impedance value for ICT to fai

Solder paste to room temperature.

Electronics Forum | Fri Apr 29 19:57:53 EDT 2005 | DasonC

Moisture will condensed on your paste if the temperature different. Solder bead will happen. You can see the jar or cartridge wet when you removed your paste from refrigerator.

Board Spacing

Electronics Forum | Wed Apr 20 11:26:30 EDT 2005 | bobsavenger

Could someone tell me the recommended board spacing when going through reflow? I've heard a couple different things so I was wanting to get other opinions. Thanks Bob

Siemens SP-120 w/o line computer?

Electronics Forum | Fri Apr 22 07:22:03 EDT 2005 | Gene

Unfortunately the answer is no. These machines could not be run without line computer because the station computer does not have a program control software, it has the hardware station control only. Computers for SP-120 and HS -180 are the same but

Lead-Free SMD repair

Electronics Forum | Thu May 26 04:24:47 EDT 2005 | Rob

I beg to differ but the old metcals do handle lead free with no problems - Unless we have a rogue batch of ancient super MX500's.

Problems with .45 mil ball diameter BGA....

Electronics Forum | Sun May 01 00:42:02 EDT 2005 | KEN

What is your price difference between the #3 and the #4 powder. ....see where I'm taking this?

Cost per component

Electronics Forum | Thu Apr 28 08:46:54 EDT 2005 | jdengler

Do you run 24 hrs a day 365 days a year? Do you have 100% utilization? If no to either or both questions you need a differant formula.

FUJI Line vs MY15 line

Electronics Forum | Tue May 31 01:56:25 EDT 2005 | grantp

Hi, We run both, and the Fuji's have a much better vision system, and will place reliably. I would never recommend MYDATA over Fuji, as there is a huge difference in stability and placement accuracy. Regards, Grant


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