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    • 1. 发明专利
    • DE69228014T2
    • 1999-05-27
    • DE69228014
    • 1992-01-28
    • SHINKO ELECTRIC CO LTD
    • YAMASHITA TEPPEIMURATA MASANAOTANAKA TSUYOSHIMORITA TERUYAKAWANO HITOSHIOKUNO ATSUSHITSUDA MASANORIHAYASHI MITSUHIROMORITA HIROMI
    • H01L21/677H01L21/00B65G1/06
    • A first aspect of the invention is to provide a wafer keeping facility comprising a wafer keeping box (10) composed of wafer keeping shelves (15, 16) having filters (20) at the rear portions thereof, a loading apparatus (70) having a vertically movable loading mechanism which is mounted thereon and travels along a rail disposed on a front passage before the wafer keeping shelves (15, 16), a fluid circulating device (23) for supplying inert gas to the rear portion of the wafer keeping shelves (15, 16) and generating flowing passage, which directs to the front passage through the filters (20), and exhaust outlets (30B, 31B), first and second path boxes (30, 31) provided at taking-in-and-out outlet of the wafer keeping box (10), a gas reservoir (40) for storing inert gas therein, a first gas supply pipe (41) having a first valve (51), the first gas supply pipe (41) extending from the gas reservoir (40) toward the first pass box (31), a second gas supply pipe (42) having a second valve (52), the second gas supply pipe (42) extending from the gas reservoir (40) toward the second pass box (31), and a fluid control device (50). A second aspect of the present invention is to provide a wafer airtight keeping unit (100) having a plurality of partitioned shelves (111) to which semiconductor wafers are taken in and out characterized in that each of the partitioned shelves (111) is a box having an opening at the front thereof and comprises a wafer accommodating room (114) partitioned by filters (111A, 11B), a fluid supply passage (113A) and a fluid discharge passage (113B) respectively communicate with the wafer accommodating room (114), and a door (12) which can airtightly shut the opening of the partitioned shelf (111) and is closable by a closable mechanism, wherein the fluid supply passage (113A) is connected to an end of a gas supply pipe (131A) to which inert gas is supplied from an exterior fluid reservoir, and the fluid discharge passage (113B) communicate with a gas discharge pipe (131B). A third aspect of the invention is to provide a wafer airtight keeping unit comprising a cylindrical stocker casing (200) having openings at the upper and lower portions thereof and a N2 gas purge space (A) at the inner space thereof, rotary stocker bodies (230) which are partitioned and housed in the stocker casing (200) and having gas passages defined between an inner wall of the stocker casing (200) and the N2 gas purge space (A), rotary mechanisms (245, 246) for rotatively driving the stocker bodies (230), a position sensor (250) for detecting the rotary position of the stocker bodies (230), an air supply chamber (260) for introducing N2 gas into the stocker casing (200) through a filter (261) covering the upper opening of the stocker casing (200) and a air discharge unit (270) communicating with a discharge port (214) defined at the lower opening of the stocker casing (200), characterized in that the stocker bodies (200) are arranged circularly around a hollow supporting shaft (241), which has a closed upper end and a lower end open toward the air discharge port (214), each stocker body (230) is open toward the gas passage and has a plurality of cassette accommodating rooms (R), which are arranged in plural vertical stages and communicate with the hollow supporting shaft (241) through the discharge port (214), each of the stocker casing (200) has a cassette taking-in-and-out port (217) defined at each stage of the stocker body (230) and a door unit (200) for airtightly shutting the cassette taking-in-and-out port (217), the position sensor (25) issues a door opening permission signal when the cassette accommodating room R turns to a predetermined position where the cassette accommodating room (R) confront the cassette taking-in-and-out port (217), and the door unit (222) seals airtightly the cassette accommodating room (R) from other portion of the stocker casing (200) when it is open.
    • 3. 发明专利
    • DE69228014D1
    • 1999-02-11
    • DE69228014
    • 1992-01-28
    • SHINKO ELECTRIC CO LTD
    • YAMASHITA TEPPEIMURATA MASANAOTANAKA TSUYOSHIMORITA TERUYAKAWANO HITOSHIOKUNO ATSUSHITSUDA MASANORIHAYASHI MITSUHIROMORITA HIROMI
    • H01L21/677H01L21/00B65G1/06
    • A first aspect of the invention is to provide a wafer keeping facility comprising a wafer keeping box (10) composed of wafer keeping shelves (15, 16) having filters (20) at the rear portions thereof, a loading apparatus (70) having a vertically movable loading mechanism which is mounted thereon and travels along a rail disposed on a front passage before the wafer keeping shelves (15, 16), a fluid circulating device (23) for supplying inert gas to the rear portion of the wafer keeping shelves (15, 16) and generating flowing passage, which directs to the front passage through the filters (20), and exhaust outlets (30B, 31B), first and second path boxes (30, 31) provided at taking-in-and-out outlet of the wafer keeping box (10), a gas reservoir (40) for storing inert gas therein, a first gas supply pipe (41) having a first valve (51), the first gas supply pipe (41) extending from the gas reservoir (40) toward the first pass box (31), a second gas supply pipe (42) having a second valve (52), the second gas supply pipe (42) extending from the gas reservoir (40) toward the second pass box (31), and a fluid control device (50). A second aspect of the present invention is to provide a wafer airtight keeping unit (100) having a plurality of partitioned shelves (111) to which semiconductor wafers are taken in and out characterized in that each of the partitioned shelves (111) is a box having an opening at the front thereof and comprises a wafer accommodating room (114) partitioned by filters (111A, 11B), a fluid supply passage (113A) and a fluid discharge passage (113B) respectively communicate with the wafer accommodating room (114), and a door (12) which can airtightly shut the opening of the partitioned shelf (111) and is closable by a closable mechanism, wherein the fluid supply passage (113A) is connected to an end of a gas supply pipe (131A) to which inert gas is supplied from an exterior fluid reservoir, and the fluid discharge passage (113B) communicate with a gas discharge pipe (131B). A third aspect of the invention is to provide a wafer airtight keeping unit comprising a cylindrical stocker casing (200) having openings at the upper and lower portions thereof and a N2 gas purge space (A) at the inner space thereof, rotary stocker bodies (230) which are partitioned and housed in the stocker casing (200) and having gas passages defined between an inner wall of the stocker casing (200) and the N2 gas purge space (A), rotary mechanisms (245, 246) for rotatively driving the stocker bodies (230), a position sensor (250) for detecting the rotary position of the stocker bodies (230), an air supply chamber (260) for introducing N2 gas into the stocker casing (200) through a filter (261) covering the upper opening of the stocker casing (200) and a air discharge unit (270) communicating with a discharge port (214) defined at the lower opening of the stocker casing (200), characterized in that the stocker bodies (200) are arranged circularly around a hollow supporting shaft (241), which has a closed upper end and a lower end open toward the air discharge port (214), each stocker body (230) is open toward the gas passage and has a plurality of cassette accommodating rooms (R), which are arranged in plural vertical stages and communicate with the hollow supporting shaft (241) through the discharge port (214), each of the stocker casing (200) has a cassette taking-in-and-out port (217) defined at each stage of the stocker body (230) and a door unit (200) for airtightly shutting the cassette taking-in-and-out port (217), the position sensor (25) issues a door opening permission signal when the cassette accommodating room R turns to a predetermined position where the cassette accommodating room (R) confront the cassette taking-in-and-out port (217), and the door unit (222) seals airtightly the cassette accommodating room (R) from other portion of the stocker casing (200) when it is open.
    • 4. 发明专利
    • CONTROL METHOD FOR NUMBER OF SETS OF COMPRESSOR
    • JPS6450104A
    • 1989-02-27
    • JP20526287
    • 1987-08-20
    • SHINKO ELECTRIC CO LTD
    • MORITA HIROMIKAMIYA HIROYUKIFUJIWARA YOSHIAKISHIMOYU YOSHIOOTANI MIKIO
    • G05B11/18F04B49/06
    • PURPOSE:To execute an economical operation by checking whether the suppliable air quantity corresponds to the maximum consumption air quantity or not, in case an operation of the present tank is continued for a prescribed time, and executing the rank-down, when said air quantity is excessive. CONSTITUTION:A consumption air quantity arithmetic part 50 brings discharge pressure from a pressure detector and suction pressure PS1-PSn from a suction pressure detector, to sampling, respectively and inputs them, and operates the consumption air quantity Qoi. When a rank is selected, a rank monitoring timer part 60 of a set number control part 40 stores its rank, and it is set after a start of a compressor of this rank has been completed, and starts a time counting operation, and becomes time-up when the time counting time becomes a set value, and outputted. A rank evaluating part 61 extracts a rank for supplying the maximum consumption air quantity QTMAX in a timer operation period in conformity with a program, compares this rank and the present rank and in case the extracted rank has higher profitability than the present rank, a rank-down to the extracted rank is requested. The control part 40 switches to the compressor belonging to the request rank at the time when switching can be executed, and starts it.
    • 6. 发明专利
    • CONTROL METHOD FOR NUMBER OF SETS OF COMPRESSOR
    • JPS6450102A
    • 1989-02-27
    • JP20526087
    • 1987-08-20
    • SHINKO ELECTRIC CO LTD
    • MORITA HIROMIKAMIYA HIROYUKIFUJIWARA YOSHIAKISHIMOYU YOSHIOOTANI MIKIO
    • G05B11/18F04B49/06
    • PURPOSE:To always secure the safe operation of a compressor and to raise the reliability by selecting a substitute machine, as for the compressor whose elapsed time after the operation has been stopped in within a prescribed time, among the compressors belonging to the designated rank to limit a start frequency. CONSTITUTION:A set number controller 40 has a start frequency monitoring timer part 41, the timer part 41 has timers TM11-T1N for inputting stop commands S1off-SNoff given to each compressor given to each compressor 11-1N and starting the time counting, and when a prescribed time T0 elapses after the time counting has been started, each timer becomes time-up and sends out a start permitting signal. In case for instance, the load use quantity increases and the discharge pressure has dropped to the lower limit set pressure PL, the device 40 selects a rank of a higher level being higher than the present in the total discharge air quantity, from the generated rank pattern table, generates a rank-up command and executes a prescribed set number control, but in this case, when the time T0 does not elapse after the compressor 1N to be moved newly has topped, the compressor having an equal function is selected as a substitute machine from an operable machine list and started in conformity with a program.
    • 9. 发明专利
    • AUTOMATIC SPECTACLE LENS GRINDER
    • JPS61156022A
    • 1986-07-15
    • JP28137384
    • 1984-12-27
    • SHINKO ELECTRIC CO LTD
    • MORITA HIROMI
    • G02C9/00B24B9/14B24C3/20G02C11/00G02C13/00
    • PURPOSE:To attain extremely fine ridgeline forming work by calculating a ridgeline deflection value every rotational angle of a lens and moving the lens on the basis of the ridgeline deflection value. CONSTITUTION:A frame inner diameter measuring instrument 2b has a probe 28 to be turned while abutting upon a circular inside groove 27 of a frame fixed on the instrument 26 and a rotary encoder 29 for detecting the rotational angle theta of the prove 28 and a distance (inner diameter) R between the rotational center O1 of the prove 28 and the groove 27 is supplied to an arithmetic unit 30 as an electric signal together with the rotational angle theta. The arithmetic unit 30 stores the inner diameters R corresponding to respective rotational angles theta (theta=1-360 deg.) in a measuring table T1 of a memory and calculates the value epsilon. The value epsilon corresponds to the moving distance of the lens in the axial direction at the time of ridgeline forming work and a pulse motor 23 is controlled by the value epsilon.