摘要:
An antireflection coating for a substrate including four layers and having optimized photopic reflectance and optimized for deposition by sputtering. The first layer (the layer farthest from the substrate) has a refractive index less than the refractive index of the substrate and a thickness of about one-quarter wavelength. The second layer (the layer adjacent the first layer) has an refractive index greater than about 2.2 and a thickness of about a half wavelength. The third layer has refractive index less than that of the second layer. The fourth layer (the layer adjacent the substrate) has a refractive index less than about 2.0 and greater than that of the third layer. The combined thickness of the third and fourth layers is less than about a quarter wavelength. The first and third layers may include silicon dioxide. The second layer may include titanium dioxide or niobium oxide. The fourth layer may include indium oxide, tin oxide, indium tin oxide, or zinc oxide.
摘要:
An in-line sputtering system with rotating cylindrical magnetrons is fitted with a system of anodes having a large surface area. The surface area is equal to or greater than the surface area of the sputtering chambers' internal walls. The anodes may be grounded, allowed to float electrically, or connected to a separate bias power supply. The anode surfaces are protected from contamination by sputtered material or are designed so the electron collecting surface may be replaced during the sputtering process. The anodes may be equipped with a magnet array for improving electron collecting efficiency.
摘要:
A rotatable magnetron cathode has one end adapted to be attached to a drive shaft and a free end supported by a yoke suspended from spring-loaded supporting devices attached to a sputtering chamber wall. A dark space shield is attached to the cathode where the cathode connects to the drive shaft of its motor so as to rotate with the cathode. Another dark space shield is attached at the free end of the cathode with an insulator bearing in between such that the cathode can rotate without causing the shield at its front to also rotate. An insulator pad is placed between the yoke and a metal cover piece attached to the shield at the front so as to keep the frontal dark space shield in an electrically floating condition.
摘要:
A cathode body for a rotating cylindrical magnetron wherein the magnetron provides a sputtering zone extending along the length of the cathode body and circumferentially along a relatively narrow region thereof. The cathode body includes an elongated tubular member having a target material at the outer surface thereof. A collar of electrically-conductive material is located at at least one end of the tubular member, and extends along the tubular member from that one end into the erosion zone. A sleeve of electrically-conductive material may extend circumferentially around the collar.
摘要:
A coating for an article comprising layers of nitrides of certain transition metals to provide an electrically-conductive, light-attenuating, antireflection surface.
摘要:
A coating for an article comprising layers of nitrides of certain transition metals to provide an electrically-conductive, light-attenuating, antireflection surface.
摘要:
A method and apparatus for coating a CRT screen after assembly. The method and apparatus includes isolating a surface portion of the CRT to be coated from the remaining surface to prevent or minimize coating problems resulting from outgassing and to isolate noncompatible components from the deposition environment.
摘要:
A rotatable magnetron cathode having at least one supported end adapted for attachment to a spindle. At least one dark space shield is attached to the cathode at a supported end to rotate therewith, and is electrically floating relative to the cathode.
摘要:
A shutter apparatus capable of protecting the interior surface of an evacuable optical coating chamber viewport from the deposition of off-substrate coating material when in the closed position, and exposing the viewport surface to permit viewing through the viewport into the chamber when in the open position. The movement of the shutter between the open and closed positions is accomplished without breaching the chamber seal.