Electronics Forum: 2

BGA solder failure rate

Electronics Forum | Thu Oct 28 13:36:14 EDT 1999 | Bart Smith

I am a design engineer and have a circuit board design with a 292 pin BGA on it. The board manufacturer is experiencing a failure rate of about 2.8% on the BGA device due to soldering problems. This is my first experience with BGA. How does the 2.

Why 50 mils in 0805 package instead of 40 mils.

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

Test Coupons & Scrap Pieces for Testing Alternative to Oven Baking - IPC TM 650 2.6 2.8

Electronics Forum | Wed Sep 22 21:15:44 EDT 2021 | djenkins62

Hello Everyone: Heat Can Be Very Damaging to Boards and well as extended oven time can cut into valuable production time. Steel Camel is testing ambient temperature drying to remove diffused and embedded moisture in PCBs. We are seeking scrap pie

Belt feeders

Electronics Forum | Thu Nov 28 20:38:17 EST 2013 | daiichid1hk

our company can offer some siemens feeder for sales. Siemens 3*8 Gold Siemens 3*8 SL Siemens 12/16mm 24/32mm 44mm 56mm 72mm 88mm Siemens 2*8 Hover Davis 3*8mm

Re: Greased Lightning

Electronics Forum | Sat Oct 16 05:07:03 EDT 1999 | Brian

I'd have put it myself into the Admin group, but I wasn't able to :-( However, it must have been a fluke: yesterday afternoon and this morning, it was back to its usual snail's pace : 2,8 kb/s today. Pity! Brian

PbF solder paste with 63Sn/37Pb reflow profile

Electronics Forum | Tue Jan 23 19:27:28 EST 2007 | asir

which characteristics? An alloy with similar melting points, wetting, shear force, reliabilities, etc. Indium has an article about 77.2Sn/20.0In/2.8Ag, but was wondering is there any other out there.

Tinning MultiConductor Flat Cable

Electronics Forum | Thu Aug 23 15:44:17 EDT 2012 | bandjwet

Anyone have ideas on how to tin window=paned areas of a 4 x 40 gauge ribbon cable? The areas are 2-8 mm in length. Thanks! Bob

2 oz Copper thickness??

Electronics Forum | Mon Apr 22 17:13:48 EDT 2013 | hegemon

Might want to double check my figures, but my notes have 2oz copper at 2.8 mils or 71.12 microns in thickness. 'hege

Meridian 1020P servo wont start

Electronics Forum | Wed Jul 09 11:00:47 EDT 2014 | guts1872

PC : A3005 I2 8 3326 Can anyone make sense of this?

Meridian 1020P servo wont start

Electronics Forum | Wed Jul 09 11:06:58 EDT 2014 | guts1872

PC : A3005 I2 8 3326. Can anyone make sense of this? Trying to add attachment but can't seem to get there.

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