Electronics Forum | Mon Dec 10 09:32:14 EST 2001 | cmay
William, Just to start with, I am no expert, but I have a few books lurking. According to one entry, Surface Mounted resistors stuck to circuit boards had been described in 1952 (Circuit World, Feb edition 1952, page 70) The first mention of a devi
Electronics Forum | Sat Dec 01 09:12:27 EST 2001 | davef
Ah, there�s the rub. So often we see scoring requirements defined based on depth of cut. This ignores that the depth changes with a variety of factors, including: * Wear on the cutting blade. * Variation in thickness of the fabricated board. So, c
Electronics Forum | Tue Dec 11 20:22:33 EST 2001 | mparker
in your example, wool clothing and prairie winter ionization makes sense. Smocks would be an improvement to contain the potential of static build up. If you go to dress codes, then you run the risk of having to provide uniforms or pay a laundry allow
Electronics Forum | Thu Dec 13 19:46:13 EST 2001 | Dave Oggy
The componant details can be found at: http://www.jst-mfg.com/pdfE/eFLZ.pdf its the 21 pin variety I need. I'm sorry but anyone suggesting that I manually do !anything! with this componant has got perfect 20/20 vision along with the soldiering skills
Electronics Forum | Tue Dec 11 18:32:30 EST 2001 | edmentzer
Does anyone have experience with different colors of solder mask. I am interested to know if a clear or light color mask is better in the reflow process. Most of the boards we do have a green solder mask. It seems to me that I read somewhere that
Electronics Forum | Sat Jan 05 10:21:29 EST 2002 | Todd Murphy
Has anyone ever had any solder related problems with the Motorola 860 BGA? We are currently using the 860 on several of our products and some of the solder joints for the 860 look like crumpled aluminum foil when viewed with the Ersa Scope. Does anyo
Electronics Forum | Mon Jan 07 20:31:15 EST 2002 | davef
While not a Motorola 860 BGA user, we see that on other components. In fact, some of the ErsaScope adverts show the effect. WHAT CAUSES THIS? Generally, the design / layout of the interposer has been the cause of this appearance. IS THIS A CONCER
Electronics Forum | Thu Jan 10 12:11:00 EST 2002 | Bo Apostolache
Dmitry, we are a contract manufacturer in Southern California. We have the capability to manufacture the above mentioned board assembly. As a rough estimate, we would be able to assemble your board for somewhere between $6-$7, depending on quantity
Electronics Forum | Mon Jan 28 07:40:40 EST 2002 | cnotebaert
Yes and Yes, Your solder supplier should recomend a profile (standard profile) in most cases you can follow it. Of course you should be running a thermal profile of each board type to verify it is within the specified temp rang. You should also chec
Electronics Forum | Mon Jan 28 07:30:21 EST 2002 | cnotebaert
Is it just certain locations on the board, or is it random, does it occur on every board, does this happen on any other products you have been running? If this occurs only on the 1 board and in random locations I wouldn�t say its your wave setup. I
