CN1327535C - Sucker type test platform controller for solar cell and its method - Google Patents
Sucker type test platform controller for solar cell and its method Download PDFInfo
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- CN1327535C CN1327535C CNB2004100643799A CN200410064379A CN1327535C CN 1327535 C CN1327535 C CN 1327535C CN B2004100643799 A CNB2004100643799 A CN B2004100643799A CN 200410064379 A CN200410064379 A CN 200410064379A CN 1327535 C CN1327535 C CN 1327535C
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- sucker
- solar cell
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention relates to a sucking disk type mobile testing platform and a control method for solar cells, and the present invention belongs to equipment manufacturing the solar cells. The present invention is mainly composed of an ascending travel switch, a descending travel switch, a pneumatic mechanism of a sucking disk, a programmable controller and a testing instrument, wherein the ascending travel switch and the descending travel switch are arranged on a position travel switch and an ascending frame of a table board of a connecting sheet, a testing table board and a table board of a stack layer. The present invention adopts a programmable control device to carry out servo control for the pneumatic mechanism and testing instrument; the vacuum degree of the sucking disk can be adjusted to be suitable for the continuous production of various plate-type solar cells. The present invention can be automatically controlled to test a cell plate and can test the cell plate in three work positions on a movable stand by work steps; an indicator light of a work position is used for tracking; connecting plates, middle test and stack layers are in continuous production, and thus, the solar cells can be safely and exactly assembled and produced; the present invention avoids consumption waste, obviously improves productivity and product yield and promotes the scale production of enterprises.
Description
Technical field
The invention belongs to the equipment of making solar cell, particularly continuous production solar cell automatic control equipment and method.
Background technology
Manufacture of solar cells technology comprises silicon chip making herbs into wool, diffusion and plasma etching, plated film, back electrode and the printing of back of the body electric field, sintering, test stepping etc.Assembling is last procedure of production procedure, processing step such as it contains flush weld, connecting plate, middle survey, lamination, lamination, frame up.Because technological level falls behind, at present domestic still the transporting by hand of these technologies lifted the plate operation, and labour intensity is big, production efficiency is low.Cause easily not only that battery sheet interconnector twist and warping be out of shapes, peeled off, pollution, the breakage of battery sheet, and the test deviation is big, has hindered the film-making of battery sheet and has assembled the large-scale production ability.The silicon chip of particularly producing battery mainly adopts imported material, causes damage to have a strong impact on ordinary production and economic benefit at the finishing operation of production procedure.Therefore, the automation of this operation for a long time becomes the key problem in technology problem that manufacture of solar cells enterprise urgent need is captured.Because automatically and divide work step control connecting plate, middle survey, laminated cell blade technolgy to relate to specific technical field,, domestic do not have producer to have such equipment, do not have the technical data of being correlated with and can be for reference yet.The name that the present patent application people proposes not long ago is called sucked type solar cell mobile platform utility application, for design of Platform provides a kind of mechanical device.
Summary of the invention
The objective of the invention is to design the automatic of sucked type solar cell location mobile monitoring platform or divide work step to finish survey lamination procedure automatic control equipment and method in the connecting plate.
For achieving the above object, device of the present invention mainly comprises frame 2, can be along the mobile stand 1 of frame 2 axially reciprocatings, be installed in the sucker crane 3 on the mobile stand 1, by iodine-tungsten lamp 13, lamp box 7, glass 11 and voltmeter, the tester that ammeter is formed, be vertically fixed on the cylinder QG1 on mobile stand 1 crossbeam, be fixed on the cylinder QG2 of crane 3 sucker stands one end, vacuum generator with solenoid directional control valve, it is characterized in that station in flakes axially being installed respectively along frame 2, the middle station of surveying, lamination station travel switch SQ5, SQ6, SQ7 connects the input position of Programmable Logic Controller more respectively.The fixedly connected sucker crane 3 of the piston of sucker cylinder QG1, crane 3 move both vertically descending stroke switch, upward stroke switch S Q4 are set between guide passage and the piston guide plate 16, and travel switch links to each other with Programmable Logic Controller input position.The vacuum degree switch ZQ1 of vacuum generator ZFQ is connected with the input position of Programmable Logic Controller.Tested cylinder QG2 is connected air compressor KY with sucker cylinder QG1 by solenoid directional control valve, the rising threshold YV2 of solenoid directional control valve, and lowering valve YV1, testing valve YV5 are connected with the carry-out bit of Programmable Logic Controller respectively.The relay coil KA1 of vacuum valve YV3, antivacuum valve YV4, iodine-tungsten lamp 13 is connected with the carry-out bit of Programmable Logic Controller.
Described crane 3 moves both vertically station descending stroke switch S Q1, test station descending stroke switch S Q2, lamination station descending stroke switch S Q3 in flakes is set respectively between guide passage and the piston guide plate 16.Described even station button SB2, test station button SB3, lamination station button SB4 are connected with the input position of Programmable Logic Controller.The described voltmeter V in parallel with testing needle passes through the reduction voltage circuit series current Table A of switch transition.
For achieving the above object and based on the control method of above device, it is characterized in that enabled instruction and frame 2 axial station travel switch SQ5, when 6,7 relay normally open contacts are logical, sucker lowering valve YV1 opens; Sucker lowering valve YV1 opens with sucker crane 3 different station descending stroke switch S Q1, when 2,3 relay normally open contacts are logical, and corresponding vacuum valve YV3, testing valve YV5 or antivacuum valve YV4 open.
Each axial station travel switch SQ5 of described method, when 6,7 relay normally-closed contacts are logical "or", lowering valve Y/1 disconnects, to prevent the not operation on station.The antivacuum valve YV4 of described method opens with vacuum valve YV3 relay normally-closed contact or rising threshold YV2 and is opened for logical, and vacuum often is in and opens when making sucker be in lifting position, and antivacuum operation is invalid.Described method rising threshold YV2, lowering valve YV1, testing valve YV5, antivacuum valve YV4 break contact except that vacuumizing are connected with stop button SB1 relay normally open contact, and when this normally opened contact on, each electromagnetically operated valve disconnects.
Operation principle of the present invention is: when station button SB2 startup in flakes, and when connecting plate station travel switch SQ5 opens, decline electromagnetically operated valve YV1 connects, the cylinder QG1 that is fixed on the mobile platform drives sucker decline, station descending stroke switch S Q1 closure in flakes, vacuum valve YV3 connects, up to vacuum degree switch ZQ1 closure, rising electromagnetically operated valve YV2 connects, and cylinder QG1 drives sucker and rises;
When test station button SB3 starts, and when test station travel switch SQ6 opens, decline electromagnetically operated valve YV1 connects, and the cylinder QG1 that is fixed on the mobile platform drives sucker decline, test station descending stroke switch S Q2 closure, testing valve YV5 connects cylinder QG2 and drives testing needle decline, simultaneously, test instrumentation 8,9, relay coil KA1 are connected, and time-delay 4-6 tests and finish second, rising electromagnetically operated valve YV2 connects, and cylinder QG1 drives sucker and rises;
When lamination station button SB3 starts, and when lamination station travel switch SQ7 opens, decline electromagnetically operated valve YV1 connects, the cylinder QG1 that is fixed on the mobile platform drives sucker decline, lamination station descending stroke switch S Q3 closure, and vacuum valve YV3 disconnects, simultaneously antivacuum valve YV4 connects, delay time 2-4 second, rising electromagnetically operated valve YV2 connects, and cylinder QG1 drives sucker and rises.
For above three processing steps, when rising put in place, upward stroke switch S Q4 disconnected respectively, and rising stops.
The present invention surveys on the lamination platform in the solar cell connecting plate, adopt programmable control unit that pneumatic mechanism and test instrumentation are carried out SERVO CONTROL and solved the follow on production testing technical problem that desire figure for a long time captures, it both can be controlled automatically, also can single work step movable stand Pneumatic elevation test battery plate on three stations step by step; Adjust sucker vacuum degree size and can adapt to 975 types, 1000 types, 1200 template formula manufacture of solar cells test needs; The station indicator light is followed the tracks of, and connecting plate, middle survey, lamination are produced continuously, makes solar cell assembling production safety reliably accurate.The present invention utilizes enterprise's existence conditions fully, and small investment has realized mechanical, electrical, gas integral, has solved the error that long-term manual operations loss and manual testing bring, and has guaranteed product quality.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is electric control theory figure of the present invention.
Fig. 3 is a pneumatic schematic diagram of the present invention.
Fig. 4 is a program work principle module map of the present invention.
Fig. 5 is a program staircase chart of the present invention.
Embodiment
Important technological parameters:
Sucker figure place: 36; Work top: 1250 * 2500; Largest battery size of components: 1200 * 540; Cell panel is inhaled and is put displacement accuracy≤1; Maximum aspiration flow 105L/min; Max vacuum pressure-53Kpa; Measuring voltage DC 0～100V precision 0.5%; Measure electric current DC 0～10A precision 0.5%
Among Fig. 1, comprise mobile stand 1, frame 2, sucker crane 3, battery sheet 4, connecting plate template 5, Template Location part 6, lamp box 7, guide rail 8, platform 9, cylinder QG1 piston 10, lamp box glass 11, laminated form board 12, iodine-tungsten lamp 13, the cylinder QG2 piston 15 that is connected with testing needle 14, in flakes, test, lamination station descending stroke switch S Q1, SQ2, SQ3, in flakes, middle survey, lamination station travel switch SQ5, SQ6, SQ7.Upward stroke switch S Q4.
The guide rail 8 of mobile stand 1 by bearing and frame 2 rolls and is connected, frame 2 and connecting plate template 5, tester lamp box glass 11, laminated form board 12 relatively move the position installation in flakes, middle survey, lamination station travel switch SQ5, SQ6, SQ7.
The sucker elevating mechanism is installed on the mobile stand 1, is comprised the cylinder QG1 that is vertically fixed on mobile stand 1 crossbeam, the crane 3 of fixedlying connected with cylinder piston 10, crane 3 moves up and down under the drive of piston 10.Along piston 10 move both vertically that guide passage and being fixed between the piston guide plate 16 of mobile stand 1 is provided with in flakes respectively, test, lamination station descending stroke switch S Q1, SQ2, SQ3.Travel switch is installed in the chute, and the battery sheet is thick then to be heightened; The battery sheet is thin then to be turned down.
The tested cylinder QG2 of control testing needle 14 liftings is fixedly mounted on an end of the sucker stand of crane 3, is connected with battery sheet 4 measuring junctions when testing needle 14 descends along with cylinder QG2 piston 15.
Vacuum generator ZFQ is installed on mobile stand 1 crossbeam.
Among Fig. 2,
Comprise circuit breaker Q C1, QF1, Switching Power Supply G1, fuse FU1～FU2, diode V1, solar cell B1, electromagnetically operated valve indicator light HL1～6, axial station indicator light HL7～9, decline station indicator light HL10～12, test resistance R1～4, current-limiting resistance R5, iodine-tungsten lamp FL, voltmeter V, ammeter A, testing needle switch QC3, change over switch QC2.
Programmable Logic Controller input position has:
In flakes worker's button SB2, test station button SB3, lamination station button SB4,
In flakes station travel switch SQ5, test station travel switch SQ6, lamination station travel switch SQ7,
Station descending stroke switch S Q1, test station descending stroke switch S Q2, lamination station descending stroke switch S Q3, upward stroke switch S Q4, vacuum degree switch ZQ1 in flakes;
Stop button, rising button, decline button, vacuum buttons, antivacuum button, testing button, start button
The carry-out bit of Programmable Logic Controller has:
Decline electromagnetically operated valve YV1, rising electromagnetically operated valve YV2, vacuum valve YV3, antivacuum valve YV4, test electromagnetically operated valve YV5, relay coil KA1.
Iodine-tungsten lamp 13 is installed in the lamp box 7 below tested glass, and the relay coil KA1 of iodine-tungsten lamp 13 is in parallel with voltmeter V.Voltmeter V is in parallel with testing needle switch QC3, again through reduction voltage circuit series current Table A, is control measuring current size, serial conversion switch QC2 on the circuit.
Among Fig. 3, the air compressor KY of pneumatic mechanism divides and subtracts one of three branch road and be connected with the cylinder QG1 that controls the sucker lifting by solenoid directional control valve DCF1, article one, be connected with the cylinder QG2 of control testing needle lifting by solenoid directional control valve DCF2, one is passed through vacuum generator ZFQ and is connected with sucker XP.DCF1 adopts the 3 position-5 way solenoid directional control valve, and one is last raise-position, by the rising threshold YV2 control of solenoid directional control valve; Another one is controlled by electromagnetically operated valve lowering valve YV1 for the position that descends; Interposition is for stoping the position.DCF2 is the two-position five-way solenoid directional control valve, and one is the test position, is controlled by electromagnetically operated valve YV5; One is initial bit.Air compressor KY connects the input of solenoid directional control valve DCF1, DCF2 through air pressure regulator GTF1.
In addition, air compressor KY connects vacuum generator ZFQ through adjuster valve GTF2, and the vacuum valve YV3 of vacuum generator ZFQ, antivacuum valve YV4 and vacuum degree switch ZQ1 are connected with the carry-out bit of Programmable Logic Controller.
SDF is the two-position three way hand-operated valve, and XLQ is the cylinder flow restricter.
Fig. 4 explains in operation principle, repeats no more.
Fig. 5 is the program staircase chart, wherein
Sucker descends and controls:
When the auto state startup, and station 1 travel switch SQ5 or 2 travel switch SQ6 or 3 travel switch SQ7 connection, rising threshold YV2 is broken as the logical AND relation, and then lowering valve YV1 opens, and then sucker descends.
When dropping to position 1, perhaps drop to position 2, perhaps drop to position 3, perhaps not in the position 1,2,3, then lowering valve stops.
Vacuum control:
Work as auto state, and travel switch SQ1 connects in flakes; Or the vacuum startup, and antivacuum YV4 pass, then vacuum valve YV3 opens, and sucker is drawn workpiece.
When vacuum degree switch ZQ1 connection, or antivacuum startup, and the disconnection of upward stroke switch, then vacuum valve YV3 disconnects, and stops vacuum.
Test control:
When auto state or test starting, and testing needle puts in place, then testing valve and opening when tester simultaneous.
Arrive when the testing time, i.e. timer conter TIM001 time-delay 4-6sec, or test starting button trailing edge or stop button startup, then tester disconnects, and the test solenoid directional control valve returns the preliminary examination position.
Antivacuum control:
Work as auto state, and descend and to put in place, and vacuum stops; Perhaps antivacuum pushbutton enable, and rising threshold stops.Then antivacuum opening.
Arrive when the antivacuum time, promptly TIM002 is 5sec, and perhaps manufal operation time (TIM003), perhaps stop button starts, then antivacuum stopping.
Rise and control:
Work as auto state, and vacuum degree reaches; Perhaps the testing time stops to (TIM001) and lowering valve; Perhaps antivacuum time (TIM002) or rising pushbutton enable; Then rising threshold is opened.
Upward stroke puts in place, and perhaps stop button starts, and then rising threshold is closed.
Claims (8)
1, sucked type solar cell location mobile monitoring platform controller, comprise frame (2), can be along the mobile stand (1) of frame (2) axially reciprocating, be installed in the tester that mobile stand (1) is gone up the crane (3) that drives sucker, is made up of iodine-tungsten lamp (13), lamp box (7), glass (11) and voltmeter, ammeter, be vertically fixed on the cylinder QG1 on mobile stand (1) crossbeam, be fixed on the cylinder QG2 of crane (3) sucker stand one end, have the vacuum generator ZFQ of solenoid directional control valve, it is characterized in that having:
Along frame (2) axially installation and that be connected to Programmable Logic Controller input position respectively station in flakes, middle survey station, lamination station travel switch SQ5, SQ6, SQ7,
The vacuum degree switch ZQ1 of the vacuum generator ZFQ that is connected with the input position of Programmable Logic Controller,
The tested cylinder QG2 that is connected with the carry-out bit of Programmable Logic Controller is connected air compressor KY with sucker cylinder QG1 by solenoid directional control valve respectively, the rising threshold YV2 of solenoid directional control valve, and lowering valve YV1, testing valve YV5,
The relay coil KA1 of the vacuum valve YV3 that is connected with the carry-out bit of Programmable Logic Controller, antivacuum valve YV4, iodine-tungsten lamp (13) respectively,
The fixedly connected sucker crane of the piston of described sucker cylinder QG1 (3), sucker crane (3) move both vertically descending stroke switch, upward stroke switch S Q4 are set between guide passage and the piston guide plate (16), and travel switch links to each other with Programmable Logic Controller input position.
2, sucked type solar cell according to claim 1 location mobile monitoring platform controller is characterized in that sucker crane (3) moves both vertically station descending stroke switch S Q1, test station descending stroke switch S Q2, lamination station descending stroke switch S Q3 in flakes are set respectively between guide passage and the piston guide plate (16).
3, sucked type solar cell according to claim 1 is located the mobile monitoring platform controller, it is characterized in that station button SB2, test station button SB3, lamination station button SB4 are connected with the input position of Programmable Logic Controller in flakes.
4, sucked type solar cell according to claim 1 is located the mobile monitoring platform controller, it is characterized in that the reduction voltage circuit series current Table A of the voltmeter V in parallel with testing needle (14) by switch transition.
5, sucked type solar cell according to claim 1 is located the method for mobile monitoring platform controller, when it is characterized in that enabled instruction and frame (2) axially station travel switch SQ5,6,7 relay normally open contact being logical, sucker lowering valve YV1 opens; Sucker lowering valve YV1 opens with crane (3) frame different station descending stroke switch S Q1, when 2,3 relay normally open contacts are logical, and corresponding vacuum valve YV3, testing valve YV5 or antivacuum valve YV4 open.
6, sucked type solar cell according to claim 5 is located the method for mobile monitoring platform controller, when it is characterized in that each axial station travel switch SQ5,6,7 relay normally-closed contact are logical "or", lowering valve YV1 disconnects, to prevent the not operation on station.
7, sucked type solar cell according to claim 5 is located the method for mobile monitoring platform controller, it is characterized in that antivacuum valve YV4 opens with vacuum valve YV3 relay normally-closed contact or rising threshold YV2 is opened for logical, vacuum often is in and opens when making sucker be in lifting position, and antivacuum operation is invalid.
8, sucked type solar cell according to claim 5 is located the method for mobile monitoring platform controller, it is characterized in that rising threshold YV2, lowering valve YV1, testing valve YV5, antivacuum valve YV4 break contact are connected with stop button SB1 relay normally open contact except that vacuumizing, when this normally opened contact was opened, each electromagnetically operated valve disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100643799A CN1327535C (en) | 2004-08-23 | 2004-08-23 | Sucker type test platform controller for solar cell and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100643799A CN1327535C (en) | 2004-08-23 | 2004-08-23 | Sucker type test platform controller for solar cell and its method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1601762A CN1601762A (en) | 2005-03-30 |
| CN1327535C true CN1327535C (en) | 2007-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100643799A Expired - Fee Related CN1327535C (en) | 2004-08-23 | 2004-08-23 | Sucker type test platform controller for solar cell and its method |
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| Country | Link |
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| CN (1) | CN1327535C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383413C (en) * | 2006-04-21 | 2008-04-23 | 上海大学 | Anti-cracking and anti-binding transplant sucking disc for single solar energy cell on-line test |
| CN101452047B (en) * | 2007-12-04 | 2011-06-08 | 北京卫星环境工程研究所 | Performance degradation in-situ measurement system and measurement method for solar cell under condition of vacuum particle irradiation |
| CN101339223B (en) * | 2008-04-21 | 2011-08-17 | 公元太阳能股份有限公司 | Solar panel automatic detection machine |
| NL2003936C2 (en) * | 2009-12-10 | 2011-06-14 | Eurotron B V | METHOD AND DEVICE FOR MANUFACTURING SOLAR PANEL USING A CARRIER |
| CN103381960A (en) * | 2012-05-02 | 2013-11-06 | 立晔科技股份有限公司 | Chip-casting transfer device |
| CN102749567A (en) * | 2012-06-29 | 2012-10-24 | 欧贝黎新能源科技股份有限公司 | All-back electrode solar battery test platform |
| CN103057957B (en) * | 2013-01-14 | 2015-05-27 | 浙江大学 | Squid foot sorting device |
| CN103787079B (en) * | 2014-01-25 | 2016-04-06 | 苏州菱欧自动化设备有限公司 | A kind of battery transport mechanism of battery checking machine |
| CN106767379A (en) * | 2016-12-30 | 2017-05-31 | 常州亿晶光电科技有限公司 | A kind of testing equipment of solar panel web plate deformation |
| CN112582501A (en) * | 2020-12-14 | 2021-03-30 | 张家港博佑光电科技有限公司 | Silicon solar cell RENA polycrystalline texturing processing method |
| CN113495216A (en) * | 2021-05-17 | 2021-10-12 | 上海申风投资管理有限公司 | Fuel cell test equipment |
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| CN2419573Y (en) * | 2000-04-13 | 2001-02-14 | 河南安彩集团有限责任公司 | Kinescope envelope inspecting device |
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| JP2004095628A (en) * | 2002-08-29 | 2004-03-25 | Mitsubishi Electric Corp | Member pasting apparatus and method therefor |
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- 2004-08-23 CN CNB2004100643799A patent/CN1327535C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2419573Y (en) * | 2000-04-13 | 2001-02-14 | 河南安彩集团有限责任公司 | Kinescope envelope inspecting device |
| CN1442889A (en) * | 2002-03-01 | 2003-09-17 | 夏普公司 | Thin semiconductor chip and its manufacturing method |
| JP2004047502A (en) * | 2002-05-17 | 2004-02-12 | Toyama Kikai Kk | Welding apparatus for lead |
| JP2004095628A (en) * | 2002-08-29 | 2004-03-25 | Mitsubishi Electric Corp | Member pasting apparatus and method therefor |
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| CN1601762A (en) | 2005-03-30 |
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Owner name: YUNNAN TIANDA GUANGFU TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: YUNNAN SEMICONDUCTOR FACTORY |
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Address after: 650033 No. 295, Jianshe Road, Yunnan, Kunming Patentee after: Yunan Tianda Photovoltaic Co., Ltd. Address before: 650033 No. 295, Jianshe Road, Yunnan, Kunming Patentee before: Yunnan Semiconductor factory |
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Granted publication date: 20070718 Termination date: 20100823 |