Electronics Forum | Tue Oct 09 20:30:25 EDT 2001 | djarvis
Thank you all for your input. We didn't get the oven and if we did I decided in the short term to just turn it around and run it as a belt mesh oven - the next line we buy runs it's conveyor to suit the oven. Hi to you Marc, it's been a few years. Yo
Electronics Forum | Mon Oct 08 23:17:48 EDT 2001 | Brad Arnold
We are trying to produce a PC Card bus assembly with a 672 pin BGA on one side. These pcb's are .015 thick. I believe the ball pitch is .5mm. The pcb's are plated with white tin. The pcb's are in a 1 X 3 array. We had 2 plates with appropriate cutout
Electronics Forum | Tue Oct 09 20:27:13 EDT 2001 | davef
That�s a 672 BALL BGA, bud!!! It�s a BIG Mutha!!! [I know. I know. For some reason suppliers call balls "pins".] Let�s focus on: * Clarifying the units on your PCB and aluminum plate thickness measurements. * Describing your use of the aluminum pl
Electronics Forum | Wed Oct 10 13:49:12 EDT 2001 | stepheno
I recently started at a new company. They have a variety of bare PCB's and most have aprox. 20 variations. Maybe about 1/3 of each board on average are non-populated locations. They buy one stencil for each PCB but then use scotch tape to block of
Electronics Forum | Mon Oct 15 23:40:43 EDT 2001 | kenbliss
One thing everyone missed is what is the goal of the company. To make money!!! So how many boards per week are you shipping now and how many would you be shipping if you had seperate stencils or a DISPENSER. With quality being number one always the
Electronics Forum | Fri Oct 12 09:17:12 EDT 2001 | mikecampbell
Hello, I need some advice. I want to create apertures in my stencil for a IBM CCGA. I've heard the standard is 4800 cubic mils of paste per aperture. I usually use a 5mil stencil for this type of product. There is no way I'll get enough paste wit
Electronics Forum | Mon Oct 15 13:41:49 EDT 2001 | bschreiber
Hi Dale, I have copies of the articles of which Mike references. If you need copies for support, contact me at: bill@smartsonic.com. Rinsing should be done by ultrasonics also. Spray in atmosphere systems will not penetrate into the same tight ar
Electronics Forum | Sat Oct 13 16:42:35 EDT 2001 | kenbliss
I agree with EMC based on what you described, and they build good pallets along with a few others, a small word of caution is that pallets are bit expensive typically several hundred dollars or more each. So if you find that is the road you go, be s
Electronics Forum | Mon Oct 15 10:57:32 EDT 2001 | davef
Before this wave solder pallet salesman blather gets too far out-of-control, let�s stop for a minute. The three major approaches you have are: 1 SELECTIVE SOLDERING: Using: * Specialty wave soldering machine to solder specific areas of a board * P
Electronics Forum | Mon Oct 15 23:30:35 EDT 2001 | Ivan Rojas
Well Dave ,,, ,, first thing I should do ,, is check my CAD data , and make sure match with the program in the pick and place machine ,, right now I work with Siemens and GC-Place ,,, In my case it may be other things to look for ,,, if is everythin
