Electron Beam Physical Vapor Deposition or EBPVD is a form of physical vapor deposition in which a target anode is bombarded with an electron beam given off by a charged tungsten filament under high vacuum. The electron beam causes atoms from the target to transform into the gaseous phase. These atoms then precipitate into solid form, coating everything in the vacuum chamber (within line of sight) with a thin layer of the anode material.
Read more about Electron Beam Physical Vapor Deposition: Introduction, Thin Film Deposition Process, Material Evaporation Methods, The Substrate, Ion Beam Assisted Deposition, Advantages of EBPVD, Disadvantages of EBPVD
Famous quotes containing the words beam and/or physical:
“How can one beam alone support a house?”
—Chinese proverb.
“The entire construct of the “medical model” of “mental illness”Mwhat is it but an analogy? Between physical medicine and psychiatry: the mind is said to be subject to disease in the same manner as the body. But whereas in physical medicine there are verifiable physiological proofs—in damaged or affected tissue, bacteria, inflammation, cellular irregularity—in mental illness alleged socially unacceptable behavior is taken as a symptom, even as proof, of pathology.”
—Kate Millett (b. 1934)