Electronics Forum | Mon Apr 28 02:22:52 EDT 2014 | jkhiew
We found repeated pad lifted after different SMT Reflow temperature (eg: 243 deg C and 233 deg C) at an isolated slot. The PCB Supplier had claimed that such condition is acceptable as per IPC 600H Clause 3.3.2 (Cross Sections) - eg: Acceptable - C
Electronics Forum | Tue Jul 19 03:06:42 EDT 2016 | ishwarsingh1
Upside down placement of a crystal oscillator is acceptable or not ?? As per IPC 8.3.2.9.2 Rectangular or Square End Chip Components – 1, 3 or 5 Side Terminations.I am not sure whether is applicable for crystal oscillator or not . Your answer wo
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 | Thu May 26 00:52:17 EDT 2005 | Adnahn
And once again the mighty Dave is right! Liverpool 3 - 2 on penalties
Electronics Forum | Fri Sep 30 12:10:28 EDT 2005 | vikkaraja
Firmware version is 2.3.2d.
Electronics Forum | Mon Dec 11 08:55:21 EST 2006 | jdengler
See http://leadfree.ipc.org/RoHS_3-2-1.asp Jerry
Electronics Forum | Mon Jan 18 12:49:38 EST 2016 | ttheis
The machine is running UPS 3.2.2c on OS/2 2.1.
Electronics Forum | Tue Apr 23 15:35:45 EDT 2013 | dyoungquist
Check out IPC-A-600. Revision G (July 2004) section 3.2.3 (surface) and section 3.2.4 (internal) give min/max thicknesses for various weight copper. The min also changes depending on what class (1-3) standard you are working to.
Electronics Forum | Fri May 11 07:37:22 EDT 2007 | davef
IPC-A-610D 3 Handling Electronic Assemblies 3-1 3.1 EOS/ESD Prevention 3-2 3.1.1 Electrical Overstress (EOS) 3-3 3.1.2 Electrostatic Discharge (ESD) 3-4 3.1.3 Warning Labels 3-5 3.1.4 Protective Materials 3-6 3.2 EOS/ESD Safe Workstation/EPA 3-7 3.3
Electronics Forum | Wed Dec 05 20:58:21 EST 2012 | davef
Look here IPC-TM-650 2.3.25 [http://www.ipc.org/4.0_Knowledge/4.1_Standards/test/2-3_2-3-25-1.pdf ]
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