Abstract:
개선된 유효 수명 및 내식성 성질을 갖고, 기부 표면에 형성된 다수 개의 홈들이 있는 증착 표면을 갖는 내화성의 금속 증착용 용기를 개시한다. 상기 홈들은 1.2 ㎜ 이상의 깊이, 1.75 ㎜ 이상의 너비, 또는 인접 홈들(또는 인접 홈들의 중심들) 간의 2.2 ㎜ 이상의 이격 간격, 및 이들의 조합을 갖는다.
Abstract:
A composite coating for use on semi-conductor processing components, comprising a refractory metal carbide coating with its surface modified by at least one of: a) a carbon donor source for a stabilized stoichiometry, and b) a layer of nitride, carbonitride or oxynitride of elements selected from a group B, Al, Si, refractory metals, transition metals, rare earth metals which may or may not contain electrically conducting pattern, and wherein the metal carbide is selected from the group consisting of silicon carbide, tantalum carbide, titanium carbide, tungsten carbide, silicon oxycarbide, zirconium carbide, hafnium carbide, lanthanum carbide, vanadium carbide, niobium carbide, magnesium carbide, chromium carbide, molybdenum carbide, beryllium carbide and mixtures thereof. The composite coating is characterized as having an improved corrosion resistance property and little emissivity sensitivity to wavelengths used in optical pyrometry under the normal semi-conductor processing environments.
Abstract:
A refractory container for evaporating metals, having significantly improved useful life and corrosion resistance properties, said container consists essentially of a refractory boride, boron nitride, and about 0.10 to 10 wt. % of a rare earth metal compound selected from one of an oxide, a nitride, a carbide, or mixtures thereof.
Abstract:
A wafer processing device or apparatus, i.e., a heater or an electrostatic chuck, comprises a planar support platen, a support shaft having centrally located bore, and a pair of electrical conductors located in the shaft. In one embodiment, the electrical conductors are concentrically located within the bore of the shaft, with the first electrical lead being in the form of a pyrolytic graphite rod and separated from the outer second graphite electrical lead by means of a pyrolytic boron nitride (pBN) coating. In a second embodiment, the support platen and the support shaft are formed from a single unitary body of graphite. In yet another embodiment of the device of the invention, the connection posts comprise a carbon fiber composite and the exposed ends of the electrical connectors are coated with a protective ceramic paste for extended life in operations.
Abstract:
A refractory container for evaporating metals, having improved useful life and corrosion resistance properties, the evaporation surface of the container having a plurality of grooves formed at the bottom surface. The grooves have either a depth of at least 1.2 mm, a width of at least 1.75 mm, or an interval spacing of at least 2.2 mm between adjacent grooves (or centers of adjacent grooves), and combinations thereof.
Abstract:
An apparatus for supporting a substrate (W) in a process chamber and regulating surface temperature of substrate comprises a base support having a surface to support substrate; a heating element (33) for heating the substrate to at least 300[deg] C; and at least one layer (600) of thermal pyrolytic graphite material embedded in base support, and having a thermal conductivity of at least 1000 W/m[deg] C in a plane parallel to substrate. The surface of the support has a maximum temperature variation of 10[deg] C between lowest point and a highest temperature point on surface of the support. An apparatus for supporting a wafer substrate (W) in a semiconductor process chamber, comprises a base substrate (10) containing bulk graphite, where the graphite base substrate has a top surface and a bottom surface facing away from the wafer supported on the apparatus; a first coating layer for coating the graphite base substrate; at least one layer (600) of thermal pyrolytic graphite (TPG) disposed on the first coating layer or disposed between the graphite base substrate and the first coating layer; a heating element (33) for heating the substrate to at least 300[deg] C and is disposed on the bottom surface of the coated graphite base substrate; an over-coating layer (300) for coating the base support; The coating layer comprises an electrically insulating material selected from one of an oxide, nitride, oxynitride of elements selected from aluminum (Al), boron (B), silicon (Si), gallium (Ga), refractory hard metals and/or transition metals. The over-coating layer comprises one of nitride, carbide, carbonitride, oxynitride of elements selected from B, Al, Si, Ga, yttrium, refractory hard metals, and/or transition metals; a zirconium phosphate having an sodium zirconium phosphate (NZP) structure of NaZr 2(PO 4) 3; a glass-ceramic composition containing at least one element selected from elements of the Group 2a, Group 3a and Group 4a; a barium oxide-alumina-boric oxide-silica (BaO-Al 2O 3-B 2O 3-SiO 2) glass; and a mixture of SiO 2 and a plasma-resistant material comprising an oxide or fluoride of yttrium (Y), scandium (Sc), lanthanum (La), cerium (Ce), gadolinium (Gd), europium (Eu), dysprosium (Dy) and yttrium-aluminum-garnet (YAG). The wafer supported by the apparatus has a maximum temperature variation of 10[deg] C between a lowest point and a highest temperature point on the wafer. The wafer substrate surface has a maximum temperature variation of 2[deg] C. The TPG layer has a thickness of 0.5-15 mm, and a thickness variation of less than 0.005 mm. The apparatus further comprises a susceptor disposed on the base support.
Abstract:
A refractory container for evaporating metals, having significantly improved useful life and corrosion resistance properties, said container consists essentially of a refractory boride, boron nitride, and about 0.10 to 10 wt. % of a rare earth metal compound selected from one of an oxide, a nitride, a carbide, or mixtures thereof.