Electronics Forum: designation (Page 295 of 538)

REFLOW SOLDERING OF THROUGH-HOLE COMPONENTS

Electronics Forum | Wed Jun 26 15:34:09 EDT 2002 | Daan Terstegge

It does work, but you must keep in mind that not only the stencil must be designed for it, but also the board. Trying to use the pin-in-paste process for a connector with an ordinary wave-solder layout will result in lots of touch-up. You'll need sma

Reflow PBGA

Electronics Forum | Fri Jun 28 03:04:21 EDT 2002 | Dreamsniper

Forgot to include the following: Dwell time is from 55 secs to 68 secs. Indium specs for the paste is maximum peak @ 228'C and 30 to 90 secs dwell time above 183'C. PCB is a 6 layer board with Dimension of 205 x 166 mm but is slightly dense with 11

Reliability of U-shape appetures

Electronics Forum | Tue Jul 02 21:47:44 EDT 2002 | alex_kirichenko

Hello everybody!!! We are going to start loading 0402s and I'm looking into all diffirent sorts of problems. From this forum I see that tombstoning is the main one. I found article about using U-shape appeture design for 0402s. I never had stenc

Is Anyone?

Electronics Forum | Mon Jul 15 15:04:21 EDT 2002 | larryk

What Claude said rings alot of truth. I feel we (the cunsumer) has caused this problem. We want everything cheaper, one trip to your electronics superstore will prove that. The products that are still here are the new designs or even prototypes. So

Is Anyone?

Electronics Forum | Tue Jul 30 02:14:09 EDT 2002 | - One of the 2 percenters -

Buy American is the answer, however we must also change business ethics. US business has devalued quality and bolstered their legal departments!!! It is easier to make legal statements defending your product when it fails, rather then pay educated,

Yield levels

Electronics Forum | Thu Jul 18 15:21:32 EDT 2002 | gdstanton

Steve, Seriously we really do that much. Don't know much about your stuff but our designs typically have as much as five 144 pin QFPs on each CCA. Boards are small and double sided with BGA and uBGA. We build some high reliability space stuff and w

Preheating a board with metalic coating on both sides

Electronics Forum | Wed Jul 31 17:57:11 EDT 2002 | davef

Foam fluxer, ouch!! That hurts. How about this? * Make a sheet metal box to cover your preheaters. [If your boss is really cheap, make a 'box' with 1/2" chicken wire and cover it with aluminum foil.] * Prebake the blank out of the boards, bag the

Preheating a board with metalic coating on both sides

Electronics Forum | Thu Aug 01 10:09:31 EDT 2002 | sueph

Dave, I would have never thought of the sheet metal box. My west coast contact, who has dealt with this type of board before, told me yesterday to go ahead and try it at this profile anyway, as the metal plating holds more heat. I was pleasantly

Glue & Paste Printing on Same side of the PCB

Electronics Forum | Wed Aug 07 05:08:04 EDT 2002 | matherat

This sounds like it could be a SIPAD solid solder application. Bring the boards in with the solderpaste already on them in a flattened solid form. Then you could print glue on them without disturbing wet paste. 1.Print glue. (Might take a little

The next wave

Electronics Forum | Tue Aug 06 17:14:33 EDT 2002 | melo_guy

I thought this would be a good place to post to get input from the "trenches" as to what is going to be the next consumer fad? It seems like the market is in need of something new to instigate future consumption. I work for an electronic component


designation searches for Companies, Equipment, Machines, Suppliers & Information