Electronics Forum | Mon Aug 13 21:04:15 EDT 2001 | davef
What??? You don�t have enough things to monitor? The origin of some profiles is mysterious. It�s probably good to try to understand such mysteries. Certainly, the important determinants in the design of your reflow profile are: * Paste you�ve sel
Electronics Forum | Mon Jan 12 21:39:09 EST 2004 | Bryan
15 C. it's very hard to decrease the Delta T. and the socket temperature always the lowest one because of it's large ,partly metal composed body.is there anyone can share with me the profiling experince of P5 socket? or any suggestions will be greatl
Electronics Forum | Fri Feb 01 06:15:46 EST 2002 | nifhail
This can be a solution for IC/BGA soldering for lead-free process isn't it ? See, most of the reflow profile set meets solder paste specification but often violating ICs or BGA requirement. Most of the solder paste required temperature of about 205 -
Electronics Forum | Thu Apr 25 04:22:14 EDT 2002 | ianchan
We have an internal debate whether to calibrate equipment using K-type thermocouple made out of : 1) fibreglass braided, with a 482 deg-C peak-measurement properties? 2) teflon FEP(fluorinated Ethylene Proplene), with 204 deg-C peak-measurement p
Electronics Forum | Wed Mar 24 10:04:09 EST 2004 | Marc Apell
183C, 60 +- 15 seconds). The quesiton to use a straight ramp or soak profile comes down to the product your are soldering. The key is to get the whole assembly at the same peak temp (minimized delta) and same TAL for effective formation of the so
Electronics Forum | Fri Oct 06 09:38:11 EDT 2006 | C.K. the Flip
Here's the BGA voids-reduction profile that I used: http://img323.imageshack.us/my.php?image=profileka0.jpg Keep in mind, this was for Sn/Pb BGA with Sn/Pb solder paste. For your situation, you might want to raise the peak temperatures to at least
Electronics Forum | Thu Oct 19 20:03:04 EDT 2006 | darby
I agree with Stephen there! Or maybe we just didn't care enough about looking into it in the COLD profile days! Back to df: I don't think any manufacturer is going to give you a tolerance level, they'll stick with what they've told you -225. If it's
Electronics Forum | Tue Jun 25 15:42:39 EDT 2002 | Daan Terstegge
Hi Steve, To my opinion your peak temperature is a little low. If you are sure that the BGA (especially the balls under it) reaches this 205 degrees then it should be OK, but if you measured somewhere else on the board then it's probably better to r
Electronics Forum | Wed Sep 11 16:57:04 EDT 2002 | bigwop
I've seen this problem caused by the cool down. > On a 7 zone oven I made a profile to peak at zone > 5 to give some semblance of control to the cool > down. The component can develope a big delta T, > because of the difference of materials Che
Electronics Forum | Mon Oct 13 08:35:38 EDT 2003 | markhoch
I've found a number of PCB's that have already been manufactured that were run using the wrong reflow profile. I verified that the PCB's did not see adequate peak temp, (as per the paste manufacturers recommendation)**. Is it possible to run the PCB'
