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Pinhole in thin metal foil


Index Key:   ENG032
Author:      surface
Subject:     Pinhole in thin metal foil
Text:        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?

Response #:  1 of 1
Author:      dipper
Text:        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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in another small container called, you guessed it, the absorber. From there this concentrated solution flows back to the generator to complete the cycle. This is the type of refrigerator that is seen most often in campers and RV's.