Electronics Forum | Thu Jan 27 06:12:14 EST 2000 | Dean
Opeator point of view: 1. eassy to read menues. Organized structure. Large text and use of color to indicate important info status...green=good, yellow= warning, red=fatal etc. Simplicity rules in this realm. GUI are great for operations screens
Electronics Forum | Thu Jan 27 20:34:12 EST 2000 | Dave F
Ashok: The real concern about moisture sensitivity is in plastic packaged parts. The plastic packaging used to manufacture surface mount technology devices absorb moisture from the environment. The high temperatures involved in vapor phase/reflow
Electronics Forum | Wed Jan 19 11:31:58 EST 2000 | Dave F
You said: "how come do i calculate the money for one chip mounting. I really want to know that. Maybe someone already has it. Shortly speaking , CALCULATION EQUATION FOR 1 CHIP MOUNTING COST IN SMT PROCESS." So, I gave you equations for calculating
Electronics Forum | Wed Jan 12 14:43:54 EST 2000 | JAX
Doug, Jedec has this info. Here is a few for you to use. LENGTH, L+LEADS, WIDTH, W+LEADS, PITCH, AVG. HEIGHT. 1. CQFP100AC: 17.28,22.35,17.28,22.35,.635,4.92 2. CQFP100AF: 32.52,37.59,32.52,37.59,1.27,4.92 3. PQFP100AD: 19.05,22.35,19.05,22.35,.
Electronics Forum | Wed Jan 05 11:11:09 EST 2000 | Dave F
Hey Pat: My responses are: 1. Does anyone have experience with the shelf life on immersion white tin? If so, how long can the boards be stored without adversely affecting solderability. I've heard one year. No, we don�t, because we turn boards fa
Electronics Forum | Mon Jan 03 01:15:05 EST 2000 | Jon
Mike, I understand your dilemma very well. You see, I was a manufacturing engineer for 11 years doing make or buy decisions before getting into the sales field. But for this commentary I will wear my engineer hat. Your situation is not uncommon.
Electronics Forum | Tue Oct 05 01:22:46 EDT 1999 | Karlin
| I am working on trying to define a cost per placement measure in our SMT assembly operations. | | Does anyone know where I might find a published industry average that we may compare to? | | I�ve heard it stated that an industry average is less t
Electronics Forum | Thu Sep 09 13:31:26 EDT 1999 | Brian W.
| | My company is looking to perform "real time" statistical process control on our current SMT operations. I have identified the critical processes for SPC but have not had much luck in finding a system(s) that can monitor the required processes for
Electronics Forum | Fri Aug 20 12:41:20 EDT 1999 | stefano bolleri
| | Yesterday as I was creating a profile on a plastic BGA using Conceptronics freedom 2000 rework station, I happend to discover that I was able to remove solder bridging from a plastic BGA. | | | | This is what I did. | | | | Created a removal pr
Electronics Forum | Tue Jul 13 14:03:33 EDT 1999 | Earl Moon
| We are looking to automate the paste printing portion of our SMT process. We are looking at used equipment from DEK and MPM from 1994 onward.(DEK 260 & 265 MPM AP20 & AP27) Does anyone have some feedback or concerns with any of these machines? Does
