Electronics Forum: omniflow and 10 and zones (Page 1 of 2)

0201 and uBGA

Electronics Forum | Wed Sep 25 10:56:27 EDT 2002 | xrayhipp

Yeah, perhaps lean more towards a ramp-to-spike profile - reducing the soak time and add a littel heat to your temp above liquid. This has worked for us with water soluable paste as we are not required to use no-clean and utilizing a 6-zone oven. G

Time and temp in lead and lead-free reflow

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

Time and temp in lead and lead-free reflow

Electronics Forum | Fri Jul 25 23:01:04 EDT 2008 | chip_flip

What paste are using? You should referance the manufactures time and temperature specification. Running lead-free in a 5 zone oven can be done with out a problem but it is not production friendly. If you are concerned with through put I would look fo

Time and temp in lead and lead-free reflow

Electronics Forum | Sat Jul 26 07:42:49 EDT 2008 | pcbbuilders

I am not very concerned about production time, but it is always a thought! Quality is more importnant of course. We have 2 different pastes, with almost identical requirements. We can get close to their profiles, but i am worried that i am spending

BTU Pyramax 125N and 150N

Electronics Forum | Tue Apr 20 11:25:59 EDT 2010 | cunningham

Has anyone got any of these ovens or know of any issues with these? We are on the market for a 10 or 12 zone oven and the BTU above is looking like the favourite Any info would be great

Printer and Reflow Oven Recommendations

Electronics Forum | Thu May 14 10:00:14 EDT 2015 | swag

I like MpM personally - run forever and programming is easy and leads you through it. It's hard to miss a step of programming with MpM software. DEK's a little harder (for me) but still very nice controls. The pluses of DEK - DEK has a high freque

0402 tombstoning and dewetting on QFP256 trade-off

Electronics Forum | Thu Mar 12 06:37:48 EDT 2009 | gregoryyork

I agree you are too cold for the profile get it up to 230C and possibly allow it to dwell a little longer in preheat as opposed to pushing up the reflow zone only. Sn90/Pb10 melts at 220C so 2C hotter than your profile so you are reliant on it alloyi

CCGA - Stencil design and Reflow Profiling

Electronics Forum | Wed Dec 11 06:34:24 EST 2019 | ameenullakhan

Hi Everyone, Reducing the top heaters around 10 deg each at last 3 zones of reflow oven. Helped us in achieved little lesser temperature at top connection of the CCGA. And we didn't face any bent. Bridging : Reducing the stencil aperture , has wor

Nub bying p&p, stencil printer and reflow.

Electronics Forum | Wed Apr 13 07:50:10 EDT 2011 | jebs

Hi. I've been looking for SMT machines and have a budget close to 100k total on a stencil printer, p&p + feeders and reflow owen. Witch machines would you choose with this budget? Have any one of you heard of evest? http://www.evest.com.tw/product.h

Your opinion about RoHS and WEEE ?

Electronics Forum | Wed Dec 15 16:38:42 EST 2004 | patrickbruneel

Here's my 10 cents Studies done in the 1980's concluded that pure tin was prone to whisker generation. A tin content lower then 70% became exempt from this phenomenon. I have never seen or done any studies on the impact lead had in reducing the pote

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