摘要:
A chamber (10) for processing substrates (12) includes a support member (14) therein which is suspended from a sidewall of the chamber. The support member includes multiple planar faces (30) for receiving substrates thereon, and is rotatable by a drive member (16) through a coupling (34) about a horizontal axis to position the multiple planar faces in a horizontal position (Fig 2) to place the substrates on the planar faces or remove the substrates from the planar faces, and a second position to place the substrates in a non-horizontal position (Fig 3) for processing. A clamping and lifting apparatus (32) is provided on the support member. The clamping and lifting apparatus is positionable, with respect to the support member, in an extended position to permit a substrate to be positioned between the clamping and lifting assembly and the support member, and in a retracted position to clamp the substrate to the support member. A clamp actuator (200) is disposed on the chamber wall to move the clamping and lifting assembly (32) between the extended and retracted positions.
摘要:
A plasma-based generator (10) for use with a power source including a plasma tube (12) having a hollow tube body in which a plasma is generated by the power source; a first support structure (30, 32) supporting a downstream end of the plasma tube (12); and a second support structure (60, 70) holding an upstream end of the plasma tube (12), the second support structure (60, 70) connected to the first support structure (30, 32), the second support structure (60, 70) including an expansion joint (70) which changes its length to accommodate a lengthening and a shortening of the plasma tube (12) due to its thermal expansion and contraction when plasma processing is performed within the plasma tube (12).
摘要:
A chamber (10) for processing substrates (12) includes a support member (14) therein which is suspended from a sidewall of the chamber. The support member includes multiple planar faces (30) for receiving substrates thereon, and is rotatable by a drive member (16) through a coupling (34) about a horizontal axis to position the multiple planar faces in a horizontal position (Fig 2) to place the substrates on the planar faces or remove the substrates from the planar faces, and a second position to place the substrates in a non-horizontal position (Fig 3) for processing. A clamping and lifting apparatus (32) is provided on the support member. The clamping and lifting apparatus is positionable, with respect to the support member, in an extended position to permit a substrate to be positioned between the clamping and lifting assembly and the support member, and in a retracted position to clamp the substrate to the support member. A clamp actuator (200) is disposed on the chamber wall to move the clamping and lifting assembly (32) between the extended and retracted positions.
摘要:
A method for cleaning a deposition chamber (10) that is used in fabricating electronic devices including the steps of delivering a precursor gas into a remote chamber (46) that is outside the deposition chamber, activating the precursor gas in the remote chamber using a microwave generator (48) to form a reactive species, flowing the reactive species from the remote chamber into the deposition chamber via conduit (57), and using the reactive species that is flowed into the deposition chamber from the remote chamber to clean the inside of the deposition chamber.
摘要:
Multilayer deposition of thin films onto glass substrates to form thin film transistors can be carried out in the same chamber (120) under similar reaction conditions at high deposition rates. We have found that sequential thin layers of silicon nitride and amorphous silicon can be deposited in the same chamber by chemical vapor deposition using pressure of at least 0.5 Torr and substrate temperatures of about 250-370 o C. Subsequently deposited different thin films can also be deposited in separate chemical vapor deposition chambers (122, 124, 126) which are part of a single multichamber vacuum system (111).
摘要:
A high pressure, high throughput, single wafer, semiconductor processing reactor (10) is disclosed which is capable of thermal CVD, plasma-enhanced CVD, plasma-assisted etchback, plasma self-cleaning, and deposition topography modification by sputtering, either separately or as part of in-situ multiple step processing. The reactor includes cooperating arrays of interdigitated susceptor (16) and wafer fingers (20) which collectively remove the wafer (15) from a robot transfer blade (24) and position the wafer with variable, controlled, close parallel spacing between the wafer and the chamber gas inlet manifold (26) then return the wafer to the blade. A combined RF/gas feed-through device (36) protects against process gas leaks and applies RF energy to the gas inlet manifold without internal breakdown or deposition of the gas. The gas inlet manifold (26) is adapted for providing uniform gas flow over the wafer. Temperature-controlled internal and external manifold surfaces suppress condensation, premature reactions and decomposition and deposition on the external surfaces. The reactor also incorporates a uniform radial pumping gas system which enables uniform reactant gas flow across the wafer and directs purge gas flow downwardly and upwardly toward the periphery of the wafer for sweeping exhaust fases radially away from the wafer to prevent deposition outside the wafer and keep the chamber clean. The reactor provides uniform processing over a wide range of pressure including very high pressures. A low temperature CVD process for forming a highly conformal layer of silicon dioxide is also disclosed. The process uses very high chamber pressure and low temperature, and TEOS and ozone reactants. The low temperature CVD silicon dioxide deposition step is particularly useful for planarizing underlying stepped dielectric layers, either alone on in conjunction with a subsequent isotropic etch. A preferred in-situ multiple-step process for forming a planarized silicon dioxide layer uses (1) high rate silicon dioxide deposition at a low temperature and high pressure followed by (2) the deposition of the conformal silicon dioxide layer also at high pressure and low temperature, followed by (3) a high rate isotropic etch, preferably at low temperature and high pressure in the same reactor used for the two oxide deposition steps. Various combinations of the steps are disclosed for different applications, as is a preferred reactor self-cleaning step.
摘要:
Multilayer deposition of thin films onto glass substrates to form thin film transistors can be carried out in the same chamber (120) under similar reaction conditions at high deposition rates. We have found that sequential thin layers of silicon nitride and amorphous silicon can be deposited in the same chamber by chemical vapor deposition using pressure of at least 0.5 Torr and substrate temperatures of about 250-370 o C. Subsequently deposited different thin films can also be deposited in separate chemical vapor deposition chambers (122, 124, 126) which are part of a single multichamber vacuum system (111).
摘要:
A high pressure, high throughput, single wafer, semiconductor processing reactor (10) is disclosed which is capable of thermal CVD, plasma-enhanced CVD, plasma-assisted etchback, plasma self-cleaning, and deposition topography modification by sputtering, either separately or as part of in-situ multiple step processing. The reactor includes cooperating arrays of interdigitated susceptor (16) and wafer fingers (20) which collectively remove the wafer (15) from a robot transfer blade (24) and position the wafer with variable, controlled, close parallel spacing between the wafer and the chamber gas inlet manifold (26) then return the wafer to the blade. A combined RF/gas feed-through device (36) protects against process gas leaks and applies RF energy to the gas inlet manifold without internal breakdown or deposition of the gas. The gas inlet manifold (26) is adapted for providing uniform gas flow over the wafer. Temperature-controlled internal and external manifold surfaces suppress condensation, premature reactions and decomposition and deposition on the external surfaces. The reactor also incorporates a uniform radial pumping gas system which enables uniform reactant gas flow across the wafer and directs purge gas flow downwardly and upwardly toward the periphery of the wafer for sweeping exhaust fases radially away from the wafer to prevent deposition outside the wafer and keep the chamber clean. The reactor provides uniform processing over a wide range of pressure including very high pressures. A low temperature CVD process for forming a highly conformal layer of silicon dioxide is also disclosed. The process uses very high chamber pressure and low temperature, and TEOS and ozone reactants. The low temperature CVD silicon dioxide deposition step is particularly useful for planarizing underlying stepped dielectric layers, either alone on in conjunction with a subsequent isotropic etch. A preferred in-situ multiple-step process for forming a planarized silicon dioxide layer uses (1) high rate silicon dioxide deposition at a low temperature and high pressure followed by (2) the deposition of the conformal silicon dioxide layer also at high pressure and low temperature, followed by (3) a high rate isotropic etch, preferably at low temperature and high pressure in the same reactor used for the two oxide deposition steps. Various combinations of the steps are disclosed for different applications, as is a preferred reactor self-cleaning step.