Patents Assigned to DNS Korea Co., Ltd.
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Patent number: 6918406Abstract: The present invention is directed to a chemical supply apparatus including a first tank in which at least two chemicals supplied from each supply bath are mixed, circulating means for circulating the chemicals in the first tank to uniformly mix the chemicals therein, a second tank for storing the mixed solution provided from the first tank, a distributor for distributing the mixed solution to supply the mixed solution to each processing unit, and a heating unit mounted upon a supply line for supplying the mixed solution to the distributor to heat up the mixed solution.Type: GrantFiled: April 14, 2003Date of Patent: July 19, 2005Assignee: DNS Korea Co., Ltd.Inventors: Jeong-yong Bae, Doo-keun An
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Patent number: 6784106Abstract: A method for drying a semiconductor substrate includes the steps of clearing the substrate by supplying a liquid into a processing bath of a chamber, injecting first dry gases onto a surface of the supplied liquid, draining the liquid from the processing bath so that the substrate is slowly exposed to the surface of the liquid, and injecting a second dry gas into the chamber and forcibly exhausting gas in the chamber.Type: GrantFiled: June 26, 2002Date of Patent: August 31, 2004Assignee: DNS Korea Co., LtdInventors: Jeong-Yong Bae, Chang-Ro Yoon, Pyeng-Jae Park
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Patent number: 6748672Abstract: A wafer dryer for use in a semiconductor cleaning apparatus includes an internal bath, an external bath, a solution supply line, a solution drain line, a pump, and drying means. The solution drain line has a first drain line and a second drain line. A pump for constantly maintaining a speed of a drained solution is installed on the first drain line. The drying means has an isopropyl alcohol (IPA) nozzle, a first gas spray nozzle for spraying N2 gas, and a second spray nozzle. The second spray nozzle is installed on all inner sidewalls of the external bath and has a plurality of holes. Thus, no wave is produced at a surface of the drained solution.Type: GrantFiled: November 27, 2002Date of Patent: June 15, 2004Assignee: DNS Korea Co., Ltd.Inventors: Sung-Hee Lee, Sang-Wha Lee
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Publication number: 20030121173Abstract: An apparatus for drying a semiconductor substrate includes a chamber having a processing bath and a cover, a liquid flow system for supplying a liquid flow into the processing bath so as to clean the substrate and for draining a liquid from the processing bath, a gas distributor for spraying a gas for drying the substrate, and decompression means for exhausting air in the chamber.Type: ApplicationFiled: June 26, 2002Publication date: July 3, 2003Applicant: DNS KOREA CO., LTDInventors: Jeong Yong Bae, Chang-Ro Yoon, Pyeng-Jae Park
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Publication number: 20030124878Abstract: A method for drying a semiconductor substrate includes the steps of clearing the substrate by supplying a liquid into a processing bath of a chamber, injecting first dry gases onto a surface of the supplied liquid, draining the liquid from the processing bath so that the substrate is slowly exposed to the surface of the liquid, and injecting a second dry gas into the chamber and forcibly exhausting gas in the chamber.Type: ApplicationFiled: June 26, 2002Publication date: July 3, 2003Applicant: DNS KOREA CO., LTDInventors: Jeong-Yong Bae, Chang-Ro Yoon, Pyeng-Jae Park
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Patent number: 6576873Abstract: A semiconductor manufacturing apparatus for a photolithographic process having a coating process and a developing process is described, which includes a first port, a second port, a coating member, and a developing member. The first port and second port have a constant distance from each other, where a substrate comes in and goes out. The coating member, which couples the first port to the second port, carries the substrate between the first port and the second port and carries out the coating process. The developing member, which couples the first port to the second port and is opposite to the coating member, carries the substrate therebetween and carries out the developing process. The apparatus can stably maintain an operating ratio of equipment, and be installed in a relatively small area.Type: GrantFiled: October 19, 2000Date of Patent: June 10, 2003Assignee: DNS Korea Co., Ltd.Inventors: Jin-Young Choi, Kun-Woo Nam, Young-Koo Yeo
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Publication number: 20030101618Abstract: A wafer dryer for use in a semiconductor cleaning apparatus includes an internal bath, an external bath, a solution supply line, a solution drain line, a pump, and drying means. The solution drain line has a first drain line and a second drain line. A pump for constantly maintaining a speed of a drained solution is installed on the first drain line. The drying means has an isopropyl alcohol (IPA) nozzle, a first gas spray nozzle for spraying N2 gas, and a second spray nozzle. The second spray nozzle is installed on all inner sidewalls of the external bath and has a plurality of holes. Thus, no wave is produced at a surface of the drained solution.Type: ApplicationFiled: November 27, 2002Publication date: June 5, 2003Applicant: DNS KOREA CO., LTDInventors: Sung-Hee Lee, Sang-Wha Lee
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Patent number: 6454472Abstract: A semiconductor manufacturing apparatus for a photolithographic process having a coating process and a developing process is described, which includes a first port, a second port, a coating member, and a developing member. The first port and second port have a constant distance from each other, where a substrate comes in and goes out. The coating member, which couples the first port to the second port, carries the substrate between the first port and the second port and carries out the coating process. The developing member, which couples the first port to the second port and is stacked on the coating member, carries the substrate therebetween and carries out the developing process. The apparatus can stably maintain an operating ratio of equipment, and be installed in a relatively small area.Type: GrantFiled: October 19, 2000Date of Patent: September 24, 2002Assignee: DNS Korea Co., Ltd.Inventors: Dong-Ho Kim, Hee-Young Kang, Ki-Sung Cho
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Patent number: 6357938Abstract: A coating and developing process system is described. The system includes a chuck for mounting a substrate, at least one process solution spray nozzle for sending out coating solution and developing solution onto the substrate mounted by the chuck, a cleaning solution spray nozzle for sending out cleaning solution onto the mounted substrate, an actuator for selecting one of the process solution spray nozzle and the cleaning solution spray nozzle and then moving the selected one to a top of the substrate, and a controller for controlling the actuator. One actuator can drive the different spray nozzles, thereby saving a space and production cost of the system.Type: GrantFiled: October 19, 2000Date of Patent: March 19, 2002Assignee: DNS Korea Co., Ltd.Inventors: Hyoung-Rae Noh, Ki-Whan Shim, Hee-Young Kang
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Patent number: 6089763Abstract: A semiconductor wafer processing system having a multi-layered arrangement of wafer processing units included in a spinner to carry out photoresist coating and developing processes for the formation of micro patterns on semiconductor wafers, thereby enabling an easy increase in those processing units coping with an introduction of new processes without increasing the occupying space of the processing units, while being capable of achieving accurate wafer feeding and loading operations, and minimizing the consumption of a chemical solvent coated over wafers. The system includes groups of modules each being selected from first and second modules. The first module includes a plurality of bake units each having bake boxes arranged in a multi-layered fashion, the bake units being arranged adjacent to one another in the wafer feeding direction, and a spin unit, such as a spine coater or a spine developer, fixedly mounted on the bake units.Type: GrantFiled: August 25, 1998Date of Patent: July 18, 2000Assignee: DNS Korea Co., Ltd.Inventors: Jin-Young Choi, Hee-Young Kang, Kyung-Dae Park, Tae-Su Kim, Jun-Seong Lee, Dong-Ho Kim, Sung-Yun Kang, Jai-Moon Ryu, Han-Kil Kang