Electronics Forum | Wed May 02 13:42:54 EDT 2001 | pzohbon
Does anyone know of any interchangeable stencil frame systems? We use Alpha's Metals Smart Frame system,but it is heavy and cumbersome. Also, are there any quality issues that prove the interchangeable system is not as repeatable as the permanently
Electronics Forum | Mon Jun 18 18:28:07 EDT 2001 | davef
We are assembling BGA [Texas Instruments (TMS320C6201)] that has metal slugs in the packaging that act as heat sinks. What are your recommendations for inspecting the solder connections on such devices?
Electronics Forum | Wed Oct 28 20:40:11 EST 1998 | Marla
| I am looking for some esd storage containers for tape and reel components in the stockroom. Shelves or bins. Any ideas. | We use the Brick Container conductive heavy duty cardboard reel holders. They are very durable and cost effective.
Electronics Forum | Fri Oct 26 07:55:49 EDT 2001 | Kenny
Does anybody know how I work out how heavy a part I can have on the bottom side of the board while reflowing top. Obviously there is a tie between the footprint in the paste and the surface tension of solder paste, but what is it ?
Electronics Forum | Thu Aug 07 01:23:43 EDT 2003 | craigj
Does anyone out there have any info on track balance ratios. i.e. heavy track entering 1 end of component (0402) and thinner track leaving other end and how this effects/causes problems like tombstoning. Am trying to put together design rules for cus
Electronics Forum | Mon Apr 05 08:21:14 EDT 2004 | Grant Petty
Hi, Thanks for the tip, and I will check that out! We have some heavy BNC type connectors, so they need a bit of heat, and this could be right that we are then overheating the flux. Regards, Grant Blackmagic Design
Electronics Forum | Wed May 04 10:36:20 EDT 2005 | Rob
Hi Hannu, Just out of interest, are these big, heavy transformers, where the weight of lead in the solder will be less than 0.2% of the overall weight of the dipped part?
Electronics Forum | Wed May 25 15:40:27 EDT 2005 | james
Has anyone had good luck with the reflow on these extremely heavy bga's. This bga has 1517 balls and requires alot of heat because of the thickness of the part. Just wondering if anyone out there can help me.
Electronics Forum | Thu Jun 23 09:11:45 EDT 2005 | russ
You should be fine with this if it is a plastic body, If it's ceramic or some other kind of heavy package you will probably want to check. We process PBGAs up to 35x35 with no glue on many occasions.
Electronics Forum | Thu Jan 19 14:43:08 EST 2006 | jeffharley
So as far as pb free compliance in EU there would be no residuals from pb on the pcb's to speak of. We also have deionization cabinet with chealate filter for heavy metals that recirculates the wash water.
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