Electronics Forum | Fri Feb 25 11:13:32 EST 2000 | Russ
This probably won't help much but I find it at least a little interesting. During some experimentation recently I accidently loaded a board into the wave upside down and it had a PLCC 68 package along with other types of components that had only bee
Electronics Forum | Fri Feb 25 04:28:49 EST 2000 | Sze-Pei LIM
We faced terrible void issue while using Sn96.5Ag3.5 solder paste, more than 20% void. We tried adjusting the reflow oven profiles but we did not have much success in reducing the void. Generally, we find quick preheat, high peak temp. and fast cooli
Electronics Forum | Wed Feb 23 16:14:39 EST 2000 | John S.
John, We have a Camalot 3800 that we have used to prototype double sided reflow boards. The flexibility a quick turn around work well for prototyping, but I wouldn't want to run production with it. The paste is 3 times the cost per unit volume of
Electronics Forum | Tue Feb 22 14:31:20 EST 2000 | JAX
If you are not placing any parts that need special attention ( BGA, CCGA, etc... ) on topside then it should be fairly easy to create a profile that will work for you. If you are wanting to use the profile you currently have for topside I am not sur
Electronics Forum | Thu Feb 17 22:23:15 EST 2000 | Dave F
Richard: As Roni said, most of the better profiler companies have the capabilties you seek Datapaq,187 BallardvilleSt,Wilmington, MA 01887 508.988.9000 Michael Dougherty Electronic Controls Design, 13626 SFreeman Rd, MulinoOR 97042 503.829.9108 K
Electronics Forum | Fri Jan 19 06:52:36 EST 2001 | pteerink
We have had the same problem with several boards, and the problem was with the land pattern design on the PCB, not the stencil. We found that the part tends to center itself on the one large pad, and if the two smaller pads are not the right distance
Electronics Forum | Tue Jan 30 12:03:15 EST 2001 | slthomas
Pete, I'm wondering how much optimisation you needed (or were allowed) to do with respect to connector design. The first one we evaluated had a row of leads that I can only describe as "crescent" shaped in cross section. Impossible to get even 50%
Electronics Forum | Wed Feb 21 09:01:16 EST 2001 | Donnie
Thanks for the input. We currently have both the Waverider and Kic products in house. We use the WaveRider on all our waves, and the Kic for the ovens. We want to find a product for our ovens that's a little more up to date than the Kic. I'm looking
Electronics Forum | Wed Feb 21 20:01:39 EST 2001 | davef
I�m unclear about the intent of your question, but I�ll take a pass at it regardless. I second the previous poster's commets. [Ya, that's the ticket.] Most chip attach adhesives should not be cured at typical reflow profile temperatures. Check yo
Electronics Forum | Mon Feb 26 14:39:34 EST 2001 | John
We are developing a new product that will have hand placed through hole parts and double sided smt. This assembly will eventually be soldered to a plastic cover that has 15 insert molded terminals. The cover extends below the surface of the board,
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