Source: http://www.google.com/patents/US6860533?dq=5,884,272
Timestamp: 2013-12-12 12:14:02
Document Index: 482684161

Matched Legal Cases: ['art 210', 'art 210', 'art 210', 'art 210', 'art 210', 'art 210', 'art 210', 'arts 210', 'arts 210']

Patent US6860533 - Substrate loading/unloading apparatus for manufacturing a liquid crystal ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Advanced Patent Search | Sign inAdvanced Patent SearchPatentsA substrate loading/unloading apparatus include a body part, an arm part connected to the body part for loading/unloading a substrate, a finger connector connected to the arm part, and a plurality of finger parts connected to the finger connector, wherein each of the finger parts include a plurality...http://www.google.com/patents/US6860533?utm_source=gb-gplus-sharePatent US6860533 - Substrate loading/unloading apparatus for manufacturing a liquid crystal display devicePublication numberUS6860533 B2Publication typeGrantApplication numberUS 10/259,340Publication dateMar 1, 2005Filing dateSep 30, 2002Priority dateMar 8, 2002Fee statusLapsedAlso published asUS20030175097Publication number10259340, 259340, US 6860533 B2, US 6860533B2, US-B2-6860533, US6860533 B2, US6860533B2InventorsSang Seok Lee, Sang Ho ParkOriginal AssigneeLg. Philips Lcd Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (107), Referenced by (7), Classifications (17), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetSubstrate loading/unloading apparatus for manufacturing a liquid crystal display deviceUS 6860533 B2Abstract A substrate loading/unloading apparatus include a body part, an arm part connected to the body part for loading/unloading a substrate, a finger connector connected to the arm part, and a plurality of finger parts connected to the finger connector, wherein each of the finger parts include a plurality of protrusions to contact a bottom surface of the substrate.
For example, the temperature of the finger part of the substrate loading/unloading unit is about room temperature and the temperature of the hardening-completed substrates is about 100�150� C. (nominally 120� C.). Accordingly, a significant amount of heat transfer occurs at each contact region where the hardening-completed substrates contact the finger part of the substrate loading/unloading unit. Thus, each of the contact regions significantly distort the hardening-completed substrates.
SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a substrate loading/unloading apparatus for manufacturing a liquid crystal display device that substantially obviates one or more problems due to limitations and disadvantages of the related art.
FIG. 7 is a cross sectional view of another exemplary substrate loading/unloading unit according to the present invention. In FIG. 7, a plurality of holes 212 may be positioned along a lengthwise direction of a finger part 210. Each of the holes 212 may be connected to at least one of a passage 213 to provide a hydraulic or pneumatic force. Moreover, each of the holes 212 may be grouped together such that multiple numbers of holes 212 may be connected to a common one of the passages 213, thereby accommodating substrates for differing sizes and configurations. For example, in a case of a substrate 300 having a size of 1000 mm�1200 mm all spaces 212 of the finger part 210 corresponding with dummy regions on the substrate 300 are commonly connected by one common passage 213. Thus, application of the hydraulic or pneumatic force through the passages 213 to the spaces via the valve system 214 only extend selected ones of the protrusions corresponding to the dummy regions to simultaneously extend above a surface of the finger part 210. Moreover, the valve system 214 corresponding to the spaces may be controlled to allow only certain ones of the protrusions from extending above the surface of the finger part 210. Accordingly, different sized substrates and substrates having different configurations of dummy and cell areas may be loaded/unloaded without having to reconfigure or change the finger part 210.
An operational process using the exemplary substrate loading/unloading units of the present invention will now be described with respect to FIGS. 4-9 using a substrate 300 having size of 1000 mm�1200 mm and having twelve cell areas. Each valve system 214 of the substrate loading/unloading unit 200 may be controlled to open the passage 213 communicated with the spaces 212 of the finger part 210. Accordingly, each of the spaces 212 may receive the force generated by the hydraulic or pneumatic source, and each of the protrusions 240 that correspond with the dummy areas of the substrate 300 extend above the upper surface of the finger part 210 to contact the dummy areas.
According to the present invention, when a bonded substrate is unloaded from the hardening unit, after the hardening process by the substrate loading/unloading unit 200, and is in a state that the protrusions 240 to be protruded are determined with respect to the selected size or substrate configuration, power is applied to the heating system 216 to elevate a temperature of the protrusions 240. For example, the temperature of the protrusions 240 may be about 50�150� C., and preferably may be about 80� C. to prevent heat flow from the bonded substrates to the protrusions 240. Accordingly, in order to maintain a precise predetermined temperature a controlling system and temperature sensors may be required. For example, contact thermocouples may be positioned on the finger parts 210 to provide feedback to a temperature controller for maintaining a precise temperature of the finger parts 210.
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apparatusUS8154709 *May 21, 2010Apr 10, 2012Asml Netherlands B.V.Method of placing a substrate, method of transferring a substrate, support system and lithographic projection apparatusCN101470358BOct 10, 2008Nov 27, 2013Asml荷兰有限公司放置衬底与传送衬底的方法、支撑系统和光刻投影设备* Cited by examinerClassifications U.S. Classification294/185, 414/941, 294/902International ClassificationH01L21/677, G02F1/1333, H01L21/687, B65G49/06, G02F1/13Cooperative ClassificationY10S294/902, Y10S414/141, G02F1/1333, H01L21/68707, B65G49/061, H01L21/67766European ClassificationB65G49/06B, H01L21/687G, H01L21/677D2Legal EventsDateCodeEventDescriptionApr 21, 2009FPExpired due to failure to pay maintenance feeEffective date: 20090301Mar 1, 2009LAPSLapse for failure to pay maintenance feesOct 17, 2008ASAssignmentOwner name: LG DISPLAY CO., LTD., KOREA, REPUBLIC OFFree format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;REEL/FRAME:021754/0230Effective date: 20080304Owner name: LG DISPLAY CO., LTD.,KOREA, REPUBLIC OFFree 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