Difference between revisions of "Photographs of corrosion and surface defects"
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| − | Photographs of | + | Photographs of flaws in the Allflex films were taken when the boards arrived in September '08 and again in March '09 after being stored in a dry Nitrogen |
| + | environment. The first two photographs below show that there was already evidence for corrosion or poor quality of the copper surface on one of the 5 micron boards when they arrived from | ||
| + | the manufacturer, but it is not clear that this problem became worse over time. | ||
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
Revision as of 15:57, 27 March 2009
Photographs of flaws in the Allflex films were taken when the boards arrived in September '08 and again in March '09 after being stored in a dry Nitrogen environment. The first two photographs below show that there was already evidence for corrosion or poor quality of the copper surface on one of the 5 micron boards when they arrived from the manufacturer, but it is not clear that this problem became worse over time.
