Wafer Cassette Transporting Patents (Class 414/940)
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Patent number: 6775918Abstract: A wafer cassette pod that is equipped with at least one position sensing device to avoid the accidental falling of a cassette pod door resulting in wafer breakage. The wafer cassette pod is provided with at least one position sensing device mounted in the sidewall of the cassette pod with a finger member protruding from the end surface of the sidewall forming the cassette pod opening. When the wafer cassette pod is not properly positioned, or docked on the loadport, the spring force of the position sensing device pushes the cassette pod away from the entrance of the loadport and thus, preventing the accidental falling of a cassette pod poor resulting in possible wafer breakage problems.Type: GrantFiled: February 6, 2002Date of Patent: August 17, 2004Assignee: Taiwan Semiconductor Manufacturing Co., LtdInventors: Hisen-Hwa Tseng, Chia-Hung Chung, Ming-Chien Wen
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Patent number: 6773220Abstract: A modular stocker for storage and retrieval of semi-conductor wafer cassettes that minimizes system down time for repair of replacement of components. The modular stocker is comprised of a rectangular or half cylindrical enclosure formed by vertical beams secured by a plurality of horizontal joists. A pick up and transfer device for storing and retrieving semi-conductor wafer cassettes in the stocker has a linear arm and a paddle or gripper for picking up the cassettes. The linear arm and paddle or gripper are driven vertically, horizontally, and rotationally by a plurality of servo motors which are mounted on a detachable chassis that forms one side of the stocker. Quick disconnect fasteners at the corners of the chassis and bottom mounted casters allow the entire chassis with the pick up and transfer device to be disconnected and rolled out of the stocker for repair or replacement. The stocker electronics are mounted on removable panels that slide in or out of the stocker on rails.Type: GrantFiled: April 30, 2001Date of Patent: August 10, 2004Assignee: Intrabay Automation, Inc.Inventor: Paul S. Whalen
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Patent number: 6774056Abstract: A process system for processing a semiconductor wafer or other similar flat workpiece has a head including a workpiece holder. A motor in the head spins the workpiece. A head lifter lowers the head to move the workpiece into a bath of liquid in a bowl. Sonic energy is introduced into the liquid and travels through the liquid to the workpiece, to assist in processing. The head is lifted to bring the workpiece to a rinse position. The bath liquid is drained. The workpiece is rinsed via radial spray nozzles in the base. The head is lifted to a dry position. A reciprocating swing arm sprays a drying fluid onto the bottom surface of the spinning wafer, to dry the wafer.Type: GrantFiled: July 19, 2002Date of Patent: August 10, 2004Assignee: Semitool, Inc.Inventors: Jon Kuntz, Steven Peace, Ed Derks, Brian Aegerter
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Publication number: 20040149672Abstract: The present invention provides an overhead travelling carriage system in which an overhead travelling carriage 110 is run along a running rail to convey a cassette 14 between processing devices 111. The overhead travelling carriage system is provided with an elevating space 8 for a platform 12 on which transfer means 51 is provided to transfer the cassette 14 and a storage space 10 in which a plurality of shelves are provided in a vertical direction to store cassettes 14. The elevating space and the storage space are arranged in a direction orthogonal to the running rail, as viewed from above. According to the present invention, the stocker requires a reduced space.Type: ApplicationFiled: December 16, 2003Publication date: August 5, 2004Applicant: Murata Kikai Kabushiki KaishaInventors: Yoichi Motoori, Akito Tai, Hisanori Matsumoto
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Patent number: 6766895Abstract: In a work conveying system including at least a work holder for holding a work and a horizontal mover for moving the work holder horizontally in an upper ceiling space within a clean room, the work being conveyed to each of plural processing apparatuses. The horizontal mover has at least one linear moving mechanism including a duct with an internal guide, a traveling body engaging the guide and traveling through the traveling path defined by the duct, and a slider connected to the traveling body for travel with the traveling body on the exterior of the traveling path. The work holder is attached to the slider. Air cleaners are disposed at suitable intervals in the traveling path to clean the air therein and to discharge the cleaned air to the exterior. The traveling path accommodates a drive source, a drive mechanism, and a power supply.Type: GrantFiled: August 29, 2002Date of Patent: July 27, 2004Assignee: Hirata CorporationInventor: Kazuyuki Matsumura
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Patent number: 6759336Abstract: Methods for reducing contamination of semiconductor substrates after processing are provided. The methods include heating the processed substrate to remove absorbed chemical species from the substrate surface by thermal desorption. Thermal desorption can be performed either in-situ or ex-situ. The substrate can be heated by convection, conduction, and/or radiant heating. The substrate can also be heated by treating the surface of the processed substrate with an inert plasma during which treatment ions in the plasma bombard the substrate surface raising the temperature thereof. Thermal desorption can also be performed ex-situ by applying thermal energy to the substrate during transport of the substrate from the processing chamber and/or by transporting the substrate to a transport module (e.g., a load lock) or to a second processing chamber for heating. Thermal desorption during transport can be enhanced by purging an inert gas over the substrate surface.Type: GrantFiled: November 18, 2002Date of Patent: July 6, 2004Assignee: Lam Research CorporationInventors: Robert Chebi, David Hemker
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Patent number: 6759256Abstract: A semiconductor fabricating method is disclosed. A first container accommodating a predetermined number of semiconductor wafers and labeled with a first identifier and a second container labeled with a second identifier are mounted on a first processing apparatus, and the first and second identifiers are stored. While the first processing apparatus is submitting the semiconductor wafers to a first process, designated ones of the processed wafers are loaded into the second container as sample wafers. The second container is mounted on an inspection apparatus to inspect the sample wafers. Then, the first and second containers are mounted on a second processing apparatus and are identified by comparison of identifiers thereof with the stored first and second identifiers, respectively. The second processing apparatus submits the rest of the processed semiconductor wafers and the inspected sample wafers to a second process, and the processed sample wafers are returned to the first container.Type: GrantFiled: October 15, 2002Date of Patent: July 6, 2004Assignee: Sony CorporationInventor: Toshiyuki Makita
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Patent number: 6755602Abstract: A pod for transporting a cassette of semiconductor wafers that is equipped with a linearly operated door opening/closing mechanism is provided. The pod includes a body member, a cover member and a latch carried on the covet member for latching the cover member onto the body member. The latch is actuatable and operable linearly from a latched condition in which the cover member is latched onto the body member to a released condition allowing removal of the cover member from the body member when engaged linearly by a latch key of a door opener situated in a loadport onto which the cassette pod is positioned.Type: GrantFiled: February 7, 2002Date of Patent: June 29, 2004Assignee: Taiwan Semiconductor Manufacturing Co., LtdInventors: Hsien-Hua Tseng, Chia-Hung Chung
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Patent number: 6751882Abstract: A mechanism for positioning a substrate of an image sensor. The substrate has first to fourth edges. The mechanism includes a standard unit, a link unit, and a push-up needle unit. The standard unit has adjacent first and second standard planes, both of which define a positioning region for receiving the substrate. The first and second edges contact the first and second standard planes, respectively. The link unit includes a first link and a second link pivotally mounted to the first link at a pivotal portion for positioning the third edge of the substrate. The push-up needle unit positions the fourth edge. When the link unit operates, the push-up needle unit and the pivotal portion of the link unit are moved toward the fourth edge and the third edge of the substrate, respectively, to position the substrate.Type: GrantFiled: March 5, 2003Date of Patent: June 22, 2004Assignee: Kingpak Technology Inc.Inventors: Pang-Chieh Yen, Jen-Te Huang, Yves Huang, Tanja Liu
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Patent number: 6746197Abstract: A substrate processing apparatus comprises a processing section for performing processing for a substrate, a substrate carrier transfer section into/out of which a substrate carrier holding a plurality of substrates is carried, and a substrate transfer mechanism for taking an unprocessed substrate out of the substrate carrier carried into the substrate carrier transfer section to deliver it to the processing section and for receiving a processed substrate from the processing section to deliver it into the substrate carrier placed on the substrate carrier transfer section. The substrate carrier transfer section shifts the position of the substrate carrier between a first position at which the substrate carrier is carried to/from the outside and a second position at which the substrate in the substrate carrier is delivered to/from the substrate transfer mechanism.Type: GrantFiled: July 25, 2002Date of Patent: June 8, 2004Assignee: Tokyo Electron LimitedInventors: Yoshio Kimura, Issei Ueda, Mitiaki Matsushita, Kazuhiko Ito
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Publication number: 20040107021Abstract: A method for providing distributed material management and flow control in an integrated circuit (IC) factory. The IC factory comprises a factory stocker, a plurality of process bays and a factory transport agent for moving wafer cassettes between the bay and the stocker. Each of the bays comprises a bay stocker, a plurality of tools, a mini-stocker and a bay transport agent for moving wafers amongst the bay components. The apparatus uses partitioned stockers to facilitate deadlock avoidance or deadlock resolution. Additionally, various algorithms are used to detect wafer cassette movement situations where deadlocks may result from a wafer cassette movement within a bay and for resolving deadlocks when they occur.Type: ApplicationFiled: January 6, 2004Publication date: June 3, 2004Inventors: Dusan Jevtic, Raja S. Sunkara
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Patent number: 6742977Abstract: An unprocessed substrate is conveyed to a film-processing chamber at the same time a processed substrate is conveyed to a substrate preparation chamber, reducing the substrate processing cycle, thereby increasing the yield per unit time. The substrate preparation chamber has a two-tiered structure for receiving processed substrates and unprocessed substrates. A two-tiered transfer robot allows the substrates to be removed or placed into the preparation and process chambers at the same time, thus decreasing the cycle time for processing a substrate.Type: GrantFiled: February 15, 2000Date of Patent: June 1, 2004Assignee: Kokusai Electric Co., Ltd.Inventors: Satohiro Okayama, Motoichi Kanazawa, Takeshige Ishida, Tomohiko Takeda, Yukio Akita, Satoru Ichimura, Kazunori Suzuki, Teruo Yoshino, Tokunobu Akao, Yasunobu Nakayama
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Patent number: 6742978Abstract: An indexing device including a housing, a cassette support mechanism, a cassette, and transport apparatus carried by the housing. The transport apparatus includes a bed of rollers having a common plane and a drive assembly coupled to the bed of rollers. The cassette support mechanism is mounted in the housing and movable along a pathway between a raised position and a lowered position relative the bed of rollers. The cassette is mounted on the cassette support mechanism.Type: GrantFiled: December 7, 2000Date of Patent: June 1, 2004Assignee: BTU International, Inc.Inventor: Steve McKinley
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Patent number: 6736582Abstract: In a device for manipulating an object for loading and unloading a clean room, the problem is to reduce the hardware expense for adjustment devices and for air conditioning while maintaining ergonomic benefits and to further improve the clean room conditions in the device. The device contains a stationary outer part (3) of a housing (2) as well as an inner part (4) that can extend telescopically from it and a receptacle element (11) in the roof area of the inner part (4). For the telescopic extension of the inner part and for the lowering of the receptacle element into the inner part, a common guide rail (16) and a common drive (20) are provided. The receptacle element connected to the drive engages with a driver of the inner part for the telescopic extension of the inner part by vertical upward movement and after reaching an access level (E2, E2), at which the inner part is secured, it can be lowered in the inner part.Type: GrantFiled: October 9, 2001Date of Patent: May 18, 2004Assignee: Brooks Automation, Inc.Inventors: Andreas Mages, Andreas Birkner, Alfred Schulz, Klaus Schultz
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Publication number: 20040081538Abstract: In a first aspect, a substrate loading station is served by a conveyor which continuously transports substrate carriers. A substrate carrier handler that is part of the substrate loading station operates to exchange substrate carriers with the conveyor while the conveyor is in motion. A carrier exchange procedure may include moving an end effector of the substrate carrier handler at a velocity that substantially matches a velocity of the conveyor. Numerous other aspects are provided.Type: ApplicationFiled: August 28, 2003Publication date: April 29, 2004Inventors: Michael Robert Rice, Martin R. Elliott, Robert B. Lowrance, Jeffrey C. Hudgens, Eric Andrew Englhardt
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Patent number: 6726429Abstract: A buffer apparatus includes a vertically moving mechanism containing a plurality of horizontally moving mechanisms to store carriers and transfer carriers to and from a load port, and one or more buffer load ports adjacent to the buffer apparatus to charge and uncharge the buffer apparatus by means of a guided vehicle, an overhead vehicle, or a human. A buffer system includes a buffer apparatus and a processing system load port to transfer carriers from the buffer apparatus to a processing system load port. An arrayed buffer system includes a plurality of buffer systems where each buffer system interacts with an individual set of load ports or a pair of buffer systems interacts with a shared set of load ports. A combination of arrayed buffer systems includes a plurality of adjacent arrayed buffer systems capable of sharing a single, environmental front-end mechanism maintenance space and capable of being serviced from the front.Type: GrantFiled: February 19, 2002Date of Patent: April 27, 2004Assignee: Vertical Solutions, Inc.Inventors: James G. Sackett, David E. Weldon, H. Alexander Anderson
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Patent number: 6719100Abstract: A horizontal door system is used in conjunction with an interfloor vertical transport system that penetrates an opening in a floor. The vertical transport system has vertical elements that define a fixed horizontal cross-section within the opening, and the door system includes a leading edge profile having a configuration matching the fixed horizontal cross-section of the vertical transport system. The door system is particularly suitable as a fire door system to seal upper and lower fire zones.Type: GrantFiled: August 30, 2001Date of Patent: April 13, 2004Assignee: PRI Automation, Inc.Inventors: Albert P. James, Jr., Joseph Reiss
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Publication number: 20040065258Abstract: An atomic layer deposition method includes positioning a plurality of semiconductor wafers into an atomic layer deposition chamber. Deposition precursor is emitted from individual gas inlets associated with individual of the wafers received within the chamber effective to form a respective monolayer onto said individual wafers received within the chamber. After forming the monolayer, purge gas is emitted from individual gas inlets associated with individual of the wafers received within the chamber. An atomic layer deposition tool includes a subatmospheric load chamber, a subatmospheric transfer chamber and a plurality of atomic layer deposition chambers. Other aspects and implementations are disclosed.Type: ApplicationFiled: October 8, 2002Publication date: April 8, 2004Inventors: Gurtej S. Sandhu, Trung Tri Doan
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Patent number: 6715978Abstract: An interbay transfer interface between an automated material handling system and a stocker which includes a conveyor belt positioned juxtaposed to the stocker, a plurality of open-top containers positioned on the conveyor belt, at least two locating pins situated on the conveyor belt for engaging the containers, a wave emitting/receiving device positioned immediately adjacent to the conveyor belt, and a controller for receiving signals from the wave emitting/receiving device and sensors mounted on the locating pins.Type: GrantFiled: April 22, 2002Date of Patent: April 6, 2004Assignee: Taiwan Semiconductor Manufacturing Co., LtdInventors: Li-Ren Lin, Cheng-Chang Chang
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Patent number: 6717171Abstract: An apparatus and method for handling microelectronic workpieces initially positioned in a container. The container can be changeable from a first configuration where the microelectronic workpiece is generally inaccessible within the container to a second configuration where the microelectronic workpiece is accessible for removal from the container. The apparatus can include a container access device positionable proximate to an aperture of an enclosure that at least partially encloses a region for handling a microelectronic workpiece. The container access device can be movably positioned proximate to the aperture to change the configuration of the container from the first configuration to the second configuration. A container support can be positioned proximate to the aperture and can be configured to move the container to a fixed, stationary position relative to the aperture when the container is in the second configuration.Type: GrantFiled: June 5, 2001Date of Patent: April 6, 2004Assignee: Semitool, Inc.Inventors: Randy Harris, Kyle M. Hanson, Daniel P. Bexten
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Patent number: 6712577Abstract: A semiconductor processing system for wafers or other semiconductor articles. The system uses an interface section at an end of the machine accessible from the clean room. A plurality of processing stations are arranged away from the clean room interface. A transfer subsystem removes wafers from supporting carriers, and positions both the wafers and carriers onto a carrousel which is used as an inventory storage. Wafers are shuttled between the inventory and processing stations by a robotic conveyor which is oriented to move toward and away from the interface end. The system processes the wafers without wafer carriers.Type: GrantFiled: April 30, 2001Date of Patent: March 30, 2004Assignee: Semitool, Inc.Inventors: Jeffrey A. Davis, Gary L. Curtis
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Publication number: 20040052624Abstract: In an automated guided vehicle including a transfer equipment which transfers a wafer, a buffer cassette which temporarily stores the wafer, and a pressing member which is provided at an opening of the buffer cassette, when traveling the automated guided vehicle, if the pressing member is slid to a center position from an end position of the opening of the buffer cassette to contact and press against the edge of the wafer, the pressing member was easily damaged by being rubbed against a periphery of the wafer, and there was a problem in durability of the pressing member.Type: ApplicationFiled: May 16, 2003Publication date: March 18, 2004Inventors: Ken Miyano, Takahiko Murayama, Takashi Nakao, Shuji Akiyama
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Patent number: 6702865Abstract: An alignment processing mechanism 10 according to the present invention includes: a conveying mechanism 11 for conveying a substrate W to be processed, an alignment mechanism 12 for aligning the substrate W conveyed by the conveying mechanism 11 to a predetermined direction, and a buffer mechanism 13 for relaying the substrate W from the conveying mechanism 11 to the alignment mechanism 12. The buffer mechanism 13 is adapted to temporarily hold the substrate W conveyed by the conveying mechanism 11, and to pass the temporarily holding substrate W to the alignment mechanism 12 based on a state of the alignment mechanism 12. According to the present invention, the alignment mechanism 12 can be used with greater efficiency in order to achieve a high speed of an alignment process.Type: GrantFiled: October 4, 2000Date of Patent: March 9, 2004Assignee: Tokyo Electron LimitedInventors: Masahito Ozawa, Masaki Narushima
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Patent number: 6698991Abstract: A fabrication system is provided which includes a storage apparatus coupled perpendicularly to a branch transport aisle, and one or more environmentally controlled fabrication tools coupled parallel to the branch transport aisle. The fabrication tools can encompass single chamber units or larger cluster tools with sub mainframes. The storage apparatus has one or more load ports which allow transfer of wafer carriers to or from a factory transport agent. A tool loading platform is positioned to receive a wafer carrier from the storage apparatus and to enable the fabrication tool to access a wafer carrier positioned thereon. A plurality of fabrication tools may be coupled beside each other within the equipment set. Each of the plurality of fabrication tools is coupled to the storage apparatus so that a wafer or wafer carrier may be received from or transferred to a factory transport agent and may travel along the storage apparatus to any of the plurality of fabrication tools coupled thereto.Type: GrantFiled: March 2, 2000Date of Patent: March 2, 2004Assignee: Applied Materials, Inc.Inventors: Robert Z. Bachrach, John C. Moran
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Patent number: 6696367Abstract: A substrate fabrication system is provided which includes a buffer station located inline between a front docking port and a loadlock chamber, the buffer station being operatively joined with a front handling chamber. Preferred embodiments employ a buffer station having a rack with reduced pitch, or relative spacing between shelves. Additional embodiments provide variable pitch end effectors as part of the disclosed fabrication system. Methods of fabricating wafers by quickly transferring them to purgeable buffer stations upon wafers arriving at a docking port are also provided.Type: GrantFiled: September 27, 2002Date of Patent: February 24, 2004Assignee: ASM America, Inc.Inventors: Ravinder Aggarwal, Jim Kusbel, Jim Alexander
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Patent number: 6692219Abstract: A wafer handling system and a method of retrofitting the system to an existing wafer handling apparatus are provided that make possible a method of handling wafers by contacting only a narrow area of not more than two millimeters wide adjacent the edge of the wafer, which is particularly useful for backside deposition where device side contact defines an area of exclusion that renders the wafer unusable in that area. The system provides a chuck on a wafer transfer arm that holds a wafer by gravity on a segmented, upwardly facing annular surface. A compatible annular surface is provided on an aligning station chuck so that wafers can be transferred by contact only with the exclusion area of the wafer surface. A load arm has two similarly compatible chucks further provided with pneumatically actuated grippers to allow the wafer to be loaded into a vertical processing apparatus.Type: GrantFiled: November 29, 2000Date of Patent: February 17, 2004Assignee: Tokyo Electron LimitedInventors: Stephen D. Coomer, Stanislaw Kopacz, Glyn Reynolds, Michael James Lombardi, Todd Michael Visconti
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Patent number: 6688840Abstract: A transport apparatus for transporting a carrier with a plurality of works placed thereon includes a loader for loading the carrier into a processing unit for performing a predetermined process for the works and a transporter for receiving the carrier loaded by the loader and intermittently transporting the carrier such that the plurality of works are sequentially positioned at a process position of the processing unit one by one. In addition, an unloading mechanism receives the carrier from the transporter after all of the plurality of works are subjected to the predetermined process at the process position, and unloads the carrier outside the processing unit, wherein the work is processed in the state it is placed on the carrier.Type: GrantFiled: April 29, 2002Date of Patent: February 10, 2004Assignee: Canon Kabushiki KaishaInventor: Shuichi Hirasawa
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Patent number: 6685419Abstract: A portable assembly allows semiconductor wafer boats to be transported safely from one semiconductor processing device to another semiconductor processing device at low cost using a small amount of the fabrication area without the need for complicated automated systems. The portable assembly includes two hollow bodies, of which one body may be elevated electromechanically to the height of a cantilever oven opening. The elevation may be conducted manually or automatically. The upper body of the assembly contains a rotating drum which further includes four segmented cylinders, which store and queue the wafer boats. The lower body contains a safety shoe locking apparatus which allows the elevator mechanism to be activated only when the assembly is docked in the appropriate location. The assembly also contains storage areas for wafers in progress. The assembly is moved manually on a set of wheels and may be rotated about its axis.Type: GrantFiled: July 10, 2001Date of Patent: February 3, 2004Inventor: Christopher John Bayne
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Patent number: 6682343Abstract: A substrate processing apparatus includes a substrate holder for holding a substrate with a holding angle of 45 degrees to 90 degrees with respect to a horizontal plane, a conveying system to convey the substrate with the substrate holder, a process chamber in which the substrate is processed, a load-lock chamber in which the substrate temporarily stays, and an intermediate chamber provided between the process chamber and the load-lock chamber. The conveying system conveys the substrate along the first direction from the load-lock chamber to the intermediate chamber, and from the intermediate chamber to the process chamber, and also conveys the substrate along the second direction perpendicular to the first direction.Type: GrantFiled: August 13, 2001Date of Patent: January 27, 2004Assignee: Anelva CorporationInventor: Nobuyuki Takahashi
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Patent number: 6684123Abstract: A factory interface for a multiple chamber semiconductor wafer processing cluster tool having a K-wafer load-lock (KWLL). The KWLL comprises a variable number of K+1 wafer slots assigned as inbound and outbound slots. Inbound slots are used to send up to K+1 wafers into the cluster tool and the same slots, denoted as outbound slots, are used for receiving up to K+1 wafers from the cluster tool. The K+1 slots are in the same volume that has to be pumped for wafers to enter the tool and vented for wafers that to leave the tool. These K+1 slots accommodate up to K wafers when accessed by a single blade robots from the tool or the factory interface, and up to K+1 wafers when the tool and factory interface are equipped with dual blade robots. Various KWLL loading methods can be selected to optimize the throughput of a wafer processing system using the KWLL. Such methods include wafer packing, reactive and gamma tolerant methods.Type: GrantFiled: June 26, 2001Date of Patent: January 27, 2004Assignee: Applied Materials, Inc.Inventors: Dusan Jevtic, Raja Sunkara
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Patent number: 6680775Abstract: The mask guiding device of the present invention has a mask guiding device that guides a substrate received from the outside. The mask guiding device is provided with a plurality of receiving portions that receives said mask from the outside.Type: GrantFiled: September 27, 2000Date of Patent: January 20, 2004Assignee: Nikon CorporationInventor: Shinichi Hirakawa
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Patent number: 6679194Abstract: A cassette table on which a wafer cassette is supported allows static electricity to be discharged from the cassette and hence, form the wafers disposed in the cassette. The cassette table includes a top plate, a cassette supporter that is mounted on the top plate and supports the cassette. At least part of the cassette supporter is made of a material that allows static electricity to be discharged to ground therethrough.Type: GrantFiled: October 8, 2002Date of Patent: January 20, 2004Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Seok Ham, Kun-Hyung Lee, Hyeogi-Ki Kim, Kyoung-Ho Park
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Patent number: 6672819Abstract: A vacuum processing apparatus is composed of a cassette block and a vacuum processing block. The cassette block has a cassette table for mounting a plurality of cassettes containing a sample and an atmospheric transfer means. The vacuum processing block has a plurality of processing chambers for performing vacuum processing to the sample and a vacuum transfer means for transferring the sample. Both of the plan views of the cassette block and the vacuum processing block are nearly rectangular, and the width of the cassette block is designed larger than the width of the vacuum processing block, and the plan view of the vacuum processing apparatus is formed in an L-shape or a T-shape.Type: GrantFiled: November 3, 2000Date of Patent: January 6, 2004Assignee: Hitachi, Ltd.Inventors: Minoru Soraoka, Ken Yoshioka, Yoshinao Kawasaki
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Patent number: 6670568Abstract: An installation for processing wafers in at least one clean room is described. The installation has a configuration of production units for carrying out individual production steps and measuring units for inspecting the production steps. The production units and the measuring units are connected via a transport system for feeding and removing the wafers. At least one measuring unit together with an unloading station for delivering wafers to the transport system forms a measuring station, in which case wafers processed so as to be free of defects can be delivered from the measuring station separately from the remaining wafers.Type: GrantFiled: November 7, 2001Date of Patent: December 30, 2003Assignee: Infineon Technologies AGInventor: Michael Goetzke
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Patent number: 6663340Abstract: A processing tool bay within a semiconductor fabrication site, including a plurality of semiconductor processing tools for processing wafers being arranged in two opposite rows. An intrabay transport system for transporting wafer carriers around the process tool bay at least in a vertical plane in front of one of said two rows of semiconductor process tools comprises at least one vehicle for receiving and delivering a wafer carrier to and from any one semiconductor process tool of said plurality of semiconductor process tools, and a vehicle guiding mechanism. The vehicle comprises a circular compartment structure including a plurality of compartments for buffering said wafer carrier between receiving it at a first location and delivering it at a second location. Each compartment is arranged for accommodating one wafer carrier. The compartment structure is rotatable around a symmetry axis of itself for an alignment.Type: GrantFiled: August 30, 2002Date of Patent: December 16, 2003Assignee: Motorola, Inc.Inventors: Jason S. Zeakes, Clinton Haris, Karl E. Mautz, William Mark Hiatt
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Patent number: 6663332Abstract: Installation for treatment of wafers in a reactor. To that end a series of wafers is placed in a wafer rack and fed into the reactor. Transport into and out of the reactor, which is sited in an enclosed chamber, takes place with the aid of conveyor means. The wafers are transferred from the wafer rack to one or more cassettes. During this operation the wafer rack is always in the vertical position, that is to say the wafers are horizontal. The same preferably also applies to the cassettes, so that the wafers remain horizontal throughout the entire process.Type: GrantFiled: October 10, 2000Date of Patent: December 16, 2003Assignee: ASM International N.V.Inventors: Boudewijn Gijsbert Sluijk, Christianus Gerardus Maria De Ridder
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Patent number: 6660104Abstract: In a method for processing flat media, such as semiconductor wafers, first and second cassettes carrying wafers are loaded into a dual position rotor. The cassettes are restrained within the rotor by support tubes and hold down pins. Processing capacity is increased, as two cassettes are simultaneously processed.Type: GrantFiled: June 5, 2002Date of Patent: December 9, 2003Assignee: Semitool, Inc.Inventors: Raymon F. Thompson, Clif Neil
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Patent number: 6662076Abstract: Management of move requests from a factory system to an automated handling system (AMHS) is provided. In one embodiment, a method and system is provided which includes receiving a move request from the factory system and selectively passing the move request to the AMHS based on a comparison of the move request with one or more conditions of the AMHS. The move request may be selectively passed to the AMHS by, for example, passing the move request to the AMHS without modification, changing a destination tool identified in the move request and/or delaying the move request, or canceling the move request. By selectively passing the move request based on conditions of the AMHS, move requests can more efficiently be managed and the throughput of the automated material handling system can be increased.Type: GrantFiled: February 10, 1999Date of Patent: December 9, 2003Assignee: Advanced Micro Devices, Inc.Inventors: Michael R. Conboy, Russel Shirley, Jason Grover
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Patent number: 6655891Abstract: A substrate transfer system comprising a cassette table for mounting a cassette which has an opening portion for loading and unloading a substrate and a cover detachably provided to the opening portion, process portion for processing the substrate housed in a cassette on the cassette table, a transfer arm mechanism for taking out the substrate from the cassette table, transferring it to process units G1 to G5, and returning a processed substrate to the cassette on the cassette table, partition members provided between the transfer arm mechanism and the cassette table, for separating an atmosphere on the side of the transfer arm mechanism from that on the side of the cassette table, a passage formed in the partition member so as to face the opening portion of the cassette on the cassette table, for passing the substrate taken out from the cassette on the cassette table by the transfer arm mechanism and returning the substrate to the cassette on the cassette table, cassette moving mechanisms for moving the openType: GrantFiled: March 25, 2002Date of Patent: December 2, 2003Assignee: Tokyo Electron LimitedInventors: Issei Ueda, Masami Akimoto, Kazuhiko Ito, Mitiaki Matsushita, Masatoshi Kaneda, Yuji Matsuyama
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Patent number: 6655898Abstract: An apparatus and method for simultaneously cycle-testing two wafer storage containers is provided. The two wafer containers are maintained in a counterbalance relationship to each other and cycled in a vertical up-and-down motion to simulate the forces of a selected overhead transport system.Type: GrantFiled: December 11, 2001Date of Patent: December 2, 2003Assignee: NEC Electronics, Inc.Inventors: David Liu-Barba, Simon Tong
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Patent number: 6651704Abstract: Stationary and pivotable trays for semiconductor wafer transfer are disclosed. A first moving equipment is movable to move a container for holding one or more semiconductor wafers from a wafer loading and unloading position to a wafer tank immersion position. A second moving equipment is movable to move the container from the wafer loading and unloading position to a container loading and unloading position. A stationary tray is located under the wafer loading and unloading position to collect liquid dripping from the first moving equipment. A pivotable tray is located to one side of the stationary tray, to collect the liquid dripping from the first moving equipment when this equipment is moving to the wafer loading and unloading position, such that the pivotable tray is lowered. The pivotable tray is raised when the second moving equipment is moving to the wafer loading and unloading position.Type: GrantFiled: November 19, 2001Date of Patent: November 25, 2003Assignee: Taiwan Semiconductor Manufacturing Co., LtdInventor: Yin-Cheng Ma
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Patent number: 6652212Abstract: A cylinder of the invention can precisely send out a piston rod 3 into four different positions and comprises: a spring receiving member 14 placed coaxially with piston rod 3 in a piston room (I-II) of a cylinder tube 2 so that the movement of spring receiving member 14 is limited by one end of the piston room; a first spring member 15 to separate the spring receiving member from the piston; a stopper 8 formed on piston rod 3 to limit spring receiving member 14 from moving in the opposite direction to piston 4, a hollow 9 formed on the periphery of piston rod 3 at farther position from piston 4 than stopper 8; and a stop pin 11 installed in the cylinder tube to be pressed in the direction of hollow 9 by a second spring member 12 to engage with hollow 9, wherein the movable length of piston rod 9 while stop pin 11 is engaged with hollow 9 is larger than movable distance of spring receiving member 14 from the piston. A load port and a production system of this invention are constructed using the cylinder.Type: GrantFiled: October 31, 2001Date of Patent: November 25, 2003Assignees: CKD Corporation, Semiconductor Leading Edge Technologies, Inc., Rorze CorporationInventors: Shinyo Kimoto, Kenji Tokunaga, Katsunori Sakata, Norio Kajita
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Publication number: 20030210971Abstract: A latch sensor for a pod transport gripper for transferring semiconductor wafers is disclosed. The transport gripper has a left bar and a right bar, as well as a cross bar connecting the left and the right bars. The gripper also has a left clamp and a right clamp disposed on interior sides of the left bar and the right bar, respectively, to clamp a pod, such as a front-opening unified pod (FOUP), for transport. A number of latches are disposed on the cross bar, and correspond to a number of latch holes of the pod. The gripper has at least one latch sensor disposed on either the left bar, the right bar, or both, to determine whether the latches have properly engaged the latch holes of the pod.Type: ApplicationFiled: May 9, 2002Publication date: November 13, 2003Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Yan-Ping Lee, Kuo-Hsing Teng, Chi-Chung Chang, Fu-Shun Lo
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Patent number: 6641350Abstract: A substrate processing equipment comprises two pod supporting stages and two independently operable pod door openers. Each pod supporting stage is capable of placing thereon a pod for containing substrates therein. Each pod door openers having means for permitting access to the substrates inside the pod placed on a corresponding pod supporting stage.Type: GrantFiled: April 16, 2001Date of Patent: November 4, 2003Assignee: Hitachi Kokusai Electric Inc.Inventors: Takanobu Nakashima, Tatsuhisa Matsunaga, Hidehiro Yanagawa
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Patent number: 6642997Abstract: A substrate conveying system for conveying a substrate contained in an accommodating container having a supporting member for supporting the substrate. The system includes a hand for holding the substrate, a driving mechanism for moving the hand toward and away from the container, along a direction approximately parallel to the surface of the substrate, the driving mechanism being operable to move the hand to below the substrate, an elevation mechanism for moving the hand relative to the container, along a direction approximately perpendicular to the surface of the substrate, the elevation mechanism being operable to move the hand upwardly relative to the supporting member, for transfer of the substrate from the supporting member to the hand, and an obstacle detecting system for detecting the presence/absence of an obstacle within a movement range of the hand defined by the driving mechanism.Type: GrantFiled: June 25, 2001Date of Patent: November 4, 2003Assignee: Canon Kabushiki KaishaInventor: Kohei Yamada
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Patent number: 6637998Abstract: A mobile, self-evacuating, micro-environment system for transit and storage of substrates between two or more processing chambers in the manufacture of semiconductor devices is provided where the system includes a mobile cart, a vacuum sealable container to hold the substrates, a vacuum source having a portable power source, located on the cart and capable of generating a vacuum in the container, and a docking valve to mate with a corresponding valve on each of the processing chambers, where the docking valve and the corresponding valve are securable to one another to form a substantially vacuum-tight seal and openable, while mated, to permit unloading and loading of substrates between the container and the processing chamber. A method of using the system is also provided.Type: GrantFiled: October 1, 2001Date of Patent: October 28, 2003Assignee: Air Products and Chemicals, Inc.Inventors: John Giles Langan, Wayne Thomas McDermott, Thomas Hsiao-Ling Hsiung
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Patent number: 6634116Abstract: A wafer conveyor system for use in a vacuum processing apparatus wherein the conveyor structure is provided with a transfer structure, and a robot apparatus is arranged on the transfer structure. The robot provides for rotation of the wafer in a horizontally from a position in a cassette to an opposite position of the cassette.Type: GrantFiled: February 13, 2001Date of Patent: October 21, 2003Assignee: Hitachi, Ltd.Inventors: Shigekazu Kato, Kouji Nishihata, Tsunehiko Tsubone, Atsushi Itou
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Patent number: 6631934Abstract: A silicon carbide cantilever paddle for use in semiconductor wafer processing is disclosed. The cantilever paddle is characterized in that it exhibits acceptable deflection characteristics over the entire range of weight loads with which it may be used, and that it is compatible with existing clamp systems. This is achieved by providing a “two-stage” handle having a large diameter section and a small diameter section, the sections being separated by a handle transition zone.Type: GrantFiled: June 2, 2000Date of Patent: October 14, 2003Assignee: Saint-Gobain Ceramics & Plastics, Inc.Inventor: Richard F. Buckley
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Publication number: 20030190223Abstract: For bay type structures of semiconductor wafer transport systems, a configuration includes interbay rail tracks and intrabay rail tracks mounted on each other, vehicles of the interbay system and carrier transfer cars of the intrabay system moving freely bi-directional inside the bay area without obstructing each other. The carrier transfer car is configured such that a wafer carrier can be directly loaded from the vehicle to the load port of a processing machine. The configuration simplifies and accelerates the transfer and enhances the flexibility of vehicles in wafer transport.Type: ApplicationFiled: April 25, 2003Publication date: October 9, 2003Inventor: Martin Peiter
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Patent number: 6619903Abstract: A reticle protection and transport system and method for a lithography tool. The system includes an indexer that stores a plurality of reticles and a removable reticle cassette. The removable reticle cassette is comprised of an inner chamber and an outer chamber. The system further includes an end effector coupled to a robotic arm. The end effector engages one of the plurality of reticles to enable the reticle to be positioned within the removable reticle cassette and thereafter transported. The system further includes a seal, coupled to the end effector and the robotic arm. To transport the reticle, the reticle is first loaded onto the end effector. Next, the end effector is used to create an arrangement wherein the reticle is loaded into the removable reticle cassette. Importantly, the reticle and removable reticle cassette do not come into contact with one another.Type: GrantFiled: August 10, 2001Date of Patent: September 16, 2003Inventors: Glenn M. Friedman, Michael DeMarco, Jorge S. Ivaldi, James A. McClay