Electronics Forum | Sun Jun 14 11:27:12 EDT 1998 | Earl Moon
| | | To those interested, | | | Earl Moon | What would life be without a bit of change. | Just finished the week at Nepcon East (should be Nepcon New England) What we really need is a good Nepcon east show located so more people would attend the
Electronics Forum | Mon Mar 16 17:01:07 EST 1998 | Earl Moon
| We are going to try out a PCB manufacturer that has an Alpha Level for ensuring a flat finish on the PCB's. | I am interested to know if anyone has and experiences, either good or bad on how boards treated with this process are to assemble. Is the
Electronics Forum | Mon Mar 16 08:55:50 EST 1998 | Scott McKee
| We are going to try out a PCB manufacturer that has an Alpha Level for ensuring a flat finish on the PCB's. | I am interested to know if anyone has and experiences, either good or bad on how boards treated with this process are to assemble. Is the
Electronics Forum | Thu Dec 18 17:10:01 EST 1997 | Tom Volker
I am designing an SMT pad for a ss metal switch. Finished copper thickness is .0014 and nickle-plating originally is 150 millionths. Initial testing yields 100,000 to 150,000 switches before intermitent failures (copper is reached.) I want 500,000
Electronics Forum | Wed Aug 08 09:47:00 EDT 2001 | Adam
I'm trying to develop a process for a small assembly consisting of two mirror image PBGA connectors, I've built the first prototype, but I ran into different problems: 1. The SMT connector was shifting during placemnt, and I knew one issue i have to
Electronics Forum | Wed Oct 10 09:38:32 EDT 2001 | brownsj
I'm trying to design a costing matrix for raw cards so our designers can estimate the costs of their raw card designs, this will hopefully slow down their lust for technology and get them considering project budget costs. Does anyone know of where I
Electronics Forum | Thu Nov 15 07:59:53 EST 2001 | John S
My company is in the process of evaluating dispensing/screen printing vendors for a new production line that will build a mixed through hole and smt board in high volume. DEK recently came out with a system that uses a thick plastic stecil with mach
Electronics Forum | Fri Jan 11 11:14:14 EST 2002 | leedianeh
I am going to be using large numbers of silver immersion PCB's for assembly. I am concerned about long term storage ( shelf life )and handling prior to placement/assembly. The recommended 'shelf life' appears to be 6 months but obviously this will
Electronics Forum | Thu Feb 07 11:59:48 EST 2002 | Ron Costa
When double sided BGA's are used on an .062 FR4 10 layer board should via's be plugged and tented? The CACHE chips being used are PBGA's 1.27mm pitch. The pad size is .030 and the finished via dia. is .010. This is a dogbone type pad and via design.
Electronics Forum | Wed Feb 27 19:55:13 EST 2002 | nifhail
Hi, I need help to understand further on the via in pad for 0402 requirement. If I were to do the DFM over the brd design which consist of 0402 with via on pad, what is the criteria that I should look for ? I learned that the via in pad does not wor
