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| Contamination, Defects, Whiskers | ||||||||||
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Which storage method will better protect against corrosion, nitrogen or super dry? You want to do it in compliance with IPC 1602, which covers storage and handling of circuit boards. Board Talk
In this study, we analyzed the effect that voltage bias has on dendrite growth both in clean PCBs and PCBs that were contaminated. Analysis Lab
At our SMT facility we currently control ambient temperature, relative humidity and particle count. Is particle count a good parameter to control? The Assembly Brothers, Phil Zarrow and Jim Hall, discuss this question. Board Talk
A few of our components have leads with a silver finish. Will silver cause solder embrittlement? Is removal of silver needed or can it be soldered using 63/37 solder? Phil Zarrow and Jim Hall, The Assembly Brothers, discuss this question and scenario. Board Talk
With high density interconnection designs, advanced packaging, localised self heating, sources of thermomechanical stress are introducing complex failures. Production Floor
Multiple tantalum capacitors are SMT attached to PCBs. Failures or fractures were observed at contractor SMT assembly lines and not on RTX lines. Production Floor
We have an operational circuit board that was accidentally exposed to rainwater for a few hours. Is there a greater likelihood of failure? Jim Hall and Phil Zarrow, The Assembly Brothers, answer this question and share their expertise in the industry. Board Talk
This paper will present scenarios where environmental factors played a role in inducing various degradation mechanisms to Rockwell products. The paper will attempt to concentrate on the unusual scenarios, or where assumptions were made too early in the analytical process that likely hindered efficient determination of root cause. Analysis Lab
We make electronics equipment used in corrosive environments. Do you recommend the use of HASL versus immersion gold for our application? The Assembly Brothers, Phil Zarrow and Jim Hall, answer this question. Board Talk
This paper reviews a testing protocol based on IPC-TM 650 2.3.25 to enable monitoring of ionic contamination within series production. Analysis Lab |
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