|Edge of sputtering target.|
See previous sample for an explanation of what you're seeing here. This is the same object as pictured in the previous item description, but this time we're getting a close-up look at the texture of the outer edge. Click the spin video to get a complete tour all the way around the disk (this video has 900 frames compared to the normal 360 frames, as it is such a long way around).
Source: eBay seller mrj33
Contributor: Theodore Gray
Acquired: 2 February, 2008
Text Updated: 23 February, 2008