Electronics Forum | Tue Jan 14 10:48:07 EST 2020 | dontfeedphils
I've worked with these quite a bit in the past as well. As the previous poster mentioned, we ran either 4/5 mil thick stencil with a pretty standard RTS profile in a 10 zone convention oven without issue.
Electronics Forum | Thu Sep 09 18:02:42 EDT 2021 | emeto
Stencil thickness could be 3,4,5,6 mil but stencil is framed on 29 inch frame for SMT printer machine. I want to measure thickness in the center of this frame.
Electronics Forum | Tue Jun 17 01:38:01 EDT 2003 | Dreamsniper
Hey fmonnette, What's wrong if I have a dry cabinet and baked all my components under 1-3%RH or say 5%RH regardless of their MS Level, whether they r level 4, 5, 5a, 6 etc.... What will be my problems in doing that process? just for curiosity, th
Electronics Forum | Sat Sep 06 21:50:09 EDT 2003 | Hoss
Sr. Assuming you are processing the garden variety 63/37 paste on FR4 substrates, a good starting point is to plan for 3.5 to 4.5 minutes of process time on the board. If you measure the total heated length of your oven and you use the range above,
Electronics Forum | Fri Oct 03 09:00:18 EDT 2003 | davef
EIA standard packages have a variety of L/W proportions. EIA||Dimension mm (LXW)||Proportion (L/W) 0201||0.6X0.3||2 0202||0.5X0.5||1 0303||0.8X0.8||1 0402||1.0X0.5||2 0504||1.25X1.0||1.25 ||1.4X1.4||1 0603||1.6X0.8||2 0805||2.0X1.25||1.6 1111||2.8X2
Electronics Forum | Tue Aug 31 12:42:45 EDT 1999 | Charles Barker
****************************************** ***************** HELP! *************** ****************************************** We are having a special ceramic smt board made. The boards are 16-up arrays that have smt pads on both sides. Only thre
Electronics Forum | Fri Oct 04 01:18:27 EDT 2002 | sarge
1.5. Width >= 4-5 Particle Diameters. Use the smallest opening to determine this. Using dimension of the smallest aperture width, you should be able to fit minimum of 4-5 solder balls side by side into the opening. For 0201 design, -400 mesh (type
Electronics Forum | Mon Apr 07 12:21:02 EDT 2003 | davef
Russ is correct. A 5 thou thick stencil should give good release. Here's how you run through it: * You want at least 5 solder particles across the smallest aperture. So in your case, 8 thou wide, which equals to 0.20mm gives us 0.20/5=40 microns.
Electronics Forum | Mon Nov 06 02:56:11 EST 2006 | Loco
*We've tried the WSP80s for leadfree, also SAC. Problem with these was when they are not being used, they keep their temp and oxidate like hell. Second problem is as Russ states, the sensor is not in the tip, therefore to get the same heat in the t
Electronics Forum | Sun Aug 13 12:16:02 EDT 2000 | Arturo
I think you are talking about Infra Red motion detectors.Most of them are 4.5V. You can use a voltage regulator 7805 IC(5VDC Output) after your 12 or 9VDC supply. In case your detector requires a different supply voltage simply choose a 78XX(XX=Volt
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