Electronics Forum | Fri Dec 07 02:10:26 EST 2007 | mpolak
Hi, Could you guys verify my BTU VIP98N oven settings for lead free process. At the moment as my standard profile im using these settings 140 160 180 207 205 220 257 same temps for bottom and speed 50cm/min. Has anyone got same oven and could
Electronics Forum | Sat Mar 29 15:29:06 EDT 2008 | aw
I am printing a ceramic paste through a 160 mesh screen that should have a theoretical wet print thickness of 53um but the only way I can get the print that thin is to increase down stop and slow the stroke. This is causing problems with the mesh, s
Electronics Forum | Tue Aug 26 22:56:39 EDT 2008 | omid_juve
we have solderability problem(some pins aren`t soldered) with two devices in our board with the below detail EP1K30QI208-2 brand:ALTERA with the package PQFP-208 TMS320VC5416PGE160 brand:TI with the package TQFP144 these two devices are pb free but t
Electronics Forum | Tue Feb 24 14:08:46 EST 2009 | swag
I think you are too hot out of the gate as well as too slow on conveyor. I think settings similar to 130, 140, 150, 160, 230, 240, 260 and conveyor speed at about 28 or 29 IPM would be more realistic but it depends on your paste and oven config/zone
Electronics Forum | Thu May 28 15:54:45 EDT 2009 | elmerito
Hello, We have designed a 160ball bga substrate. Now we want to use the same substrate for the 145ball version of the product. All are the same, the package size, ball pitch, solder ball size only the number of balls will change. We will use a new s
Electronics Forum | Mon Feb 08 20:18:39 EST 2010 | city4497s
Hi I'm looking for a auto mold machine for PCBA application in singapore, anyone have any recommendation. My PCB size is 160mmX42mmX0.6mm, the units are arrange in array form and there are about 12 ~ 20 unit per strip. the mold size is about 15mmX5m
Electronics Forum | Fri Jan 07 10:27:07 EST 2011 | patrickbruneel
Hi, Detergent/saponifiers have indeed the potential to tarnish aluminum. This is due to the high alkalinity of the chemistry (pH 10-12). Things you can do to minimize the effect is: A) Limit the exposure time of the Al with the chemistry. B) Reduc
Electronics Forum | Fri Apr 01 03:02:59 EDT 2011 | grahamcooper22
starting point with zone settings would be, 100 / 160 / 200 / 225 / 260 deg C...but you'll have to check the exact profile on the pcb with a reflow profiler....making sure you meet the paste spec and making sure you don't heat any devices up to quic
Electronics Forum | Thu Apr 07 11:39:48 EDT 2011 | remullis
My oven profile is 155,160,165,180,220,245,255,227 Cooling Zone 132/92. This is a 8 zone CV820 Technical Devices oven. My assy profile using Datapaq Q18 - Base on one probe feedback - Positive slope (7.09), Pos Slope Time (.45), Rise Time (1.17), Me
Electronics Forum | Wed May 23 12:02:46 EDT 2012 | aj
Hi, You can go a long to answering that question yourself - what do you need to see? If you are lookig for the normal stuff like bridging, opens and voids you dont need anywhere near 130-160kv. I have just completed the same excercise and we have s