Pinhole in thin metal foil
Date: Around 1993
I am Ph.D. candidate at Seoul National University in Korea. I am
going to assemble a Ultra-high Vacuum apparatus and make a "conductance--
limiting pinhole." The pinhole will be made through thin metal foil
(Thickness < 0.05 mm). The diameter of the pinhole is less than 0.01 mm. I
heard about "laser-drilling," but that technique is not available right now.
What is difference between "mechanical drilling" (by use of Drill) and "Laser
drilling"? What method is suitable for making pinhole through such thin foil?
Laser drilling is most certainly available and done on a daily
basis at some precision fabricating house. If you are in a major city, check
the yellow pages under sheet metal fabricators and check the advertisements
for those that have laser capabilities.
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Update: June 2012