Electronics Forum | Thu Jan 19 20:40:52 EST 2006 | Gary Kemp
We are experiencing a blistering problem during our process of lead free assembly. The customer has supplied us with the bare fab rated at 140 Tg. I am under the assumption that the Tg rating should at minimum be 170. Does anyone know if there is
Electronics Forum | Tue Feb 13 07:54:48 EST 2007 | jax
Smaller Ovens reduce your ability to create extended soak times. Extended Soak Time requirements are determined by your thermal variant across the product. A 5 zone oven could work if your boards are not extremely complex but you are the only person
Electronics Forum | Tue Nov 10 12:30:55 EST 2009 | thanh
hi all! i have a 5 zone BTU (V70) have it set up at 120, 150, 180, 190, 230 and 22 IPM. but i having 1 here 1 there 0402 tomstone, need advise how to set up the best profile to avoid tomstone. i'm using INDIUM 6.3 W.S lead paste. thank you.
Electronics Forum | Fri Apr 16 12:23:40 EDT 2010 | shawnvike
We are looking at buying a new (or used) oven for low-mid volume Pb-free production. I have looked at the smaller Hellers, BTU, vitronics, etc. and I am also looking at the Manncorp CR-6000. I want at elast 5 zones, top and bottom, air (no N2) pi
Electronics Forum | Fri Aug 01 21:10:35 EDT 2008 | leo_dektec
You can keep only the 5th zone as the reflow zone. And lower the first two zones to keep a good ramping rate. Meanwhile,please note the ting temperature in software or control panel is not the exact temperature in your PCB, you'd better get a KIC or
Electronics Forum | Fri Jun 18 10:13:20 EDT 2021 | shmevan91
Haven't tried that yet as we don't have backups of them. The ovens are about 5 years old, our next step it to change the main card and reinstall as we have one as spares, just waiting for a break in production to do it.
Electronics Forum | Tue Feb 01 12:43:39 EST 2005 | jbrower
Hi Scott, My Heller is a bog standard Heller 1500 with an edge guide. There is nothing special about it. I would of course love to have a 7 zone oven, but...I have to use what is here at this time. My only concern with a 5 zone oven is the change i
Electronics Forum | Mon Jan 30 22:45:30 EST 2017 | cmarasigan
Hello Marc, Thank you for the recommendation. I've contacted our local service support. We found out that heat coming from higher zones 7, 8 & 9 overflows to zone 3, 4 & 5 which affects actual temp reading at Z3,4,5. Since we already replaced some b
Electronics Forum | Wed Jun 26 21:56:24 EDT 2002 | ianchan
Hi mate, there is another thread ongoing about such an BGA vs oven length issue, suggest posting your question there. As for that someone's opinion, he/she is entitled to it. Then again how did that someone determine this level of "insufficient"?
Electronics Forum | Fri Jul 15 06:50:02 EDT 2005 | Rob
It looks like the 330 Convection & the GF120 ovens would really stuggle to do lead free, with 3 zones (the 330 has 3 top, 1 bottom). Can't comment on the 545 oven, you'll have to get them to run profiles with a selection of your boards & check on
