Electronics Forum: plotted (Page 1 of 7)

Solder Sphere/pad size plotted vs. pitch design?

Electronics Forum | Wed Dec 04 18:59:34 EST 2002 | Steve Godber

Is there a Technical graph/chart/table guideline for designers on which Solder Sphere/pad size is plotted vs. pitch design to acheive maximum SJR?

Solder Sphere/pad size plotted vs. pitch design?

Electronics Forum | Thu Dec 05 17:40:24 EST 2002 | davef

While unfamiliar with some of the terms you use, could this be what you seek? http://www.pcbstandards.com/downloads/Metric%20Environment/General%20Documentation/PCB%20Design/PCB%20Design%20Routing/Metric%20BGA%20Routing.pdf Stepping backwards just

Solder Sphere/pad size plotted vs. pitch design?

Electronics Forum | Mon Dec 09 21:15:27 EST 2002 | MA/NY DDave

Hi I haven't looked yet at what DaveF gave you. It is my guess that your SJR stands for Solder Joint Reliability. The answer would in general be NO to your question. Usually things in the design community are done in steps that provide a certain

SPC for Wave solder (defects on PCB's)

Electronics Forum | Tue Feb 07 10:11:06 EST 2006 | amol_kane

hi, the only way you can say that the process is in/out of control is to plot the values (mean) of a metric against the 3 sigma limits for a Xbar chart, or plot a individuals run chart. you can also do a capability analysis nased on a metric (say,

parameter triggers & Industry Standard on Calibration Intervals

Electronics Forum | Tue Mar 27 15:25:43 EDT 2007 | ianchan

Hi Dave, Thanks for your input; what I understood the gentleman was describing was a ISO/MIL/ANSI standard that actually plots out a chart (e.g. timeline/frequency of use versus environmental variable parameter, where the variable may be dust, oil,

GER to GBX conversion tool?

Electronics Forum | Mon Nov 12 12:47:28 EST 2007 | davef

While we're unsure what you're trying to accomplish, .GER files are viewer files. The Gerber Plot File Viewer (GerberView) is a Windows based application that allows you to view Gerber plot and NC Drill files. You need a .GBX file or some other file

LSP profile

Electronics Forum | Sun Jun 06 11:01:36 EDT 2004 | adm

Hi I'm trying to plot a LSP profile to reduce void. But I do not have much info about LSP. Does anyone know what are the specific times and temperature of the LSP profile? And are there any ways to eliminate solder void other than changing profile

LSP profile

Electronics Forum | Sun Jun 06 11:02:33 EDT 2004 | adm

Hi I'm trying to plot a LSP profile to reduce void. But I do not have much info about LSP. Does anyone know what are the specific times and temperature of the LSP profile? And are there any ways to eliminate solder void other than changing profile

Problems with .45 mil ball diameter BGA....

Electronics Forum | Tue May 03 05:46:43 EDT 2005 | mattkehoe

Consider ssd for your BGA's. http://www.sipad.com/SIPAD_NASA_Plots.htm www.sipad.net mkehoe@sipad.net

SPC and Wave

Electronics Forum | Thu Jul 14 10:00:21 EDT 2005 | chunks

Any one using SPC to monitor their wave solder process? My point is collecting defects and using a scatter plot is useful but only after a problem occurs. SPC's true function is to warn of impending problems that are about to occur. Can SPC really

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