Electronics Forum | Tue Mar 04 14:38:57 EST 2003 | caldon
I am doing some work for a company that does it's own Manufacturing. They want to make their services available to the out side world. To do this they want to bring in a sales engineer as an Independent Contractor. 100% Commission and no Benefits. Wh
Electronics Forum | Wed Mar 05 08:12:56 EST 2003 | nifhail
Hi Mike, How do we measure the O2 ppm in N2 environment. I don't understand why the customer keep insisting me to use N2 instead of Air. I don't see the need for it as I done have any soldering issue. Can you share with me why N2 is needed at the fi
Electronics Forum | Wed Mar 05 11:54:44 EST 2003 | ruggi
Hi JFB, I think this is an unnecessary activity, but it may depend on your RH. We are in the Spokane, WA area, and the RH avg year round is about 25-30%. We have never baked our PCBs in the 9 years I've been here across 800+ varieties, including
Electronics Forum | Mon Mar 10 15:20:41 EST 2003 | MA/NY DDave
Hi Well I don't have all the titles right handy, yet let me give a few places for you to check. All my books aren't exactly at my finger tips. Author: Tumalla (??spelling) He is now at Georgia Tech Author: Lasky, Seraphim Author: Ning-Cheng Lee or
Electronics Forum | Fri Mar 14 04:42:24 EST 2003 | emeto
Hi, About Thombstone defects: 1.Placement accuracy-main reason 2.Soldering-should be right on pads.The print should have regular shape.The quontity of the solder on both pads on one component have to be equal. 3.Reflow: the profile have to be made v
Electronics Forum | Fri Mar 21 20:21:41 EST 2003 | Grant
Hi, I can verify that, and we have done 2 or more reflows with prototypes, using vapor phase reflow, and because there is no oxygen, the result is good, and you cannot tell the difference between the first reflow, and the 3rd. We are getting a vap
Electronics Forum | Fri Mar 21 15:00:18 EST 2003 | Jones
From viewing the company web site I see that they are a Japanese company with one location in the states. You may want to call them and ask about spare parts and if they will provide you with any type of technical support since the equipment is being
Electronics Forum | Fri Mar 21 11:10:24 EST 2003 | davef
There is no standard. If your boards solder well, they're good. Well soldered boards that have been stored a long time will have field life similar to well soldered boards that have not been stored a long time. The solderability of boards depends
Electronics Forum | Tue Mar 25 11:32:15 EST 2003 | MA/NY DDave
Hi Kevin, Well I or we, used to do this all the time in PiH or THT days with some small hand forming tools (dies) and also some automated ones. You already have gotten the phone numbers for a couple of the small electronic assembly hand tools place
Electronics Forum | Mon Apr 07 13:26:25 EDT 2003 | billschreiber
Dear Yukim, You may want to make sure that your presolder cleaning processes will support the change to a new flux. Many chemistries are vertically oriented and will clean only a selected few types of solder pastes. If you find that a new cleaning
