CN201655778U - Non-enclosed high speed gas current absorption and transmission device - Google Patents
Non-enclosed high speed gas current absorption and transmission device Download PDFInfo
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- CN201655778U CN201655778U CN2010201750426U CN201020175042U CN201655778U CN 201655778 U CN201655778 U CN 201655778U CN 2010201750426 U CN2010201750426 U CN 2010201750426U CN 201020175042 U CN201020175042 U CN 201020175042U CN 201655778 U CN201655778 U CN 201655778U
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Abstract
A non-enclosed high speed gas current absorption and transmission device for picking up groups of thin workpieces solves the problems that the prior art is low in efficiency, can not pick up groups of thin workpieces, etc. The device comprises a gas circuit control unit, a sucker and a moving control unit. The utility model is characterized in that the sucker consisting of a gas needle and a sucker body is sealed and arranged on a sucker base, and fixed with the moving control unit, so the gas chamber of the sucker base is respectively communicated with the compressed gas cavity of the gas circuit control unit and the gas inlet of the gas needle; gas current quickly passes the inner cavity of the gas needle through the gas chamber and the gas inlet and forms high speed gas current, and the gas current keeps high flow rate along an open diversion groove on the surface of the sucker and absorbs thin workpieces by pressure difference. The utility model having the advantages of compact structure design and reasonable gas circuit distribution has broad application range. The adoption of an independent and open type gas circuit to single sheet prevents the picking-up and transmission operation of groups of thin workpieces from being influenced by the absorption failure of single thin workpiece. Finished product rate, transmission safety and reliability and production efficiency are obviously improved.
Description
Technical field
The utility model relates to the picking up of a kind of thin slice workpiece that is used for semiconductor crystal wafer and solar cell processing procedure, transmitting device, particularly a kind of Unenclosed high-speed gas flow adsorption and transport device that in open gas circuit thin slice workpiece is in groups picked up.This device is highly suitable for arranging closely the picking up, transmit of whole group of thin slice workpiece of millimeter level thickness, is applicable to that also other need transmit the operation place of all kinds of laminates in groups.
Background technology
At present, picking up and transmit for the thin slice workpiece in processing semiconductor wafer and the solar cell processing procedure, because wafer and solar cell foil belong to the thin slice workpiece less than millimeter level thickness, and in reservoir vessel 4 millimeters of the less thaies usually of the distance between every, so broken easily.Most of manufacturer often adopts manual method to pass to put and states the thin slice workpiece, and manual operations tends to cause the breakage of thin slice workpiece, and exists the thin slice surface of the work easily to pollute, have problems such as finger mark.In order to improve product quality, to raise the efficiency, more and more pick up, transmission course all adopting mechanical transmission device to substitute manual operation.
Existing semiconductor crystal wafer factory and solar battery sheet factory etc. all propose following the requirement to mechanical transmission device:
1, being suitable for little spacing multi-disc picks up;
2, higher fail safe is arranged in the transmission course;
3, keep lower fragmentation rate;
4, whole transportation does not have manual auxiliary operation.
Existing basic energy satisfies the above mechanical transmission device that requires and mainly contains: clipping, electromagnetic adsorption type, Bernoulli Jacob's formula and vacuum adsorption type.The complex structure of wherein clipping and electromagnetic adsorption type easily causes the damage of thin slice workpiece, not too is applicable to picking up of thin slice workpiece.Bernoulli Jacob's formula and vacuum adsorption type are the pick device that generally uses, and have obtained practical application.
Chinese patent application numbers 200710203381.3 discloses a kind of " semiconductor manufacturing equipment wafer grabbing device ", its wafer grasps plate by the bonding flakiness shape of three ply board overall structure, has connectivity slot and corresponding wafer adsorption hole and the vacuum interface that is communicated with.What wafer grasped plate is shaped as fork-shaped or claw type, and vacuum interface is positioned on fork handle or the latch spoon.This device adopts the vacuum suction form, though it is less demanding to grasping the object surface smoothness, simple in structure, with low cost, but it is bigger that this technical scheme exists wafer to grasp the plate area, and thicker limitation, so only be applicable to the monolithic horizontal transport in the production process, can't carry out the transmission of multi-disc collective, so production efficiency is low.
Chinese patent application numbers 98800069.5 discloses a kind of " being used to keep and protect the equipment and the method for semiconductor wafer ", and this device adopts to have a substrate and go up in order to limit the limitting casing and the transfer passage of an outer scope and an inner scope.Its operation principle only is applicable to single-wafer sheet levels operation, and needs peripheral protection that the effect that just can play the absorption maintenance is set.This apparatus structure complexity, and equally can only horizontal one-step operation, can't carry out the transmission of multi-disc collective, so production efficiency is low.
Chinese patent application numbers 200810214301.9 discloses a kind of " base plate keeping device and maintenance method, semiconductor-fabricating device and storage medium ".Wherein base plate keeping device comprises: the substrate maintaining part, prevent protuberance, gas discharge outlet and the temperature adjustment part of laterally skidding.Be discharged to the Clearance Flow of gas between substrate maintenance face and substrate at substrate back, the Bernoulli effect of utilizing the pressure in this gap to reduce attracts this substrate to the substrate maintaining part, thereby keeps substrate.This kind base plate keeping device only is applicable to the monolithic parallel transmission in the production process, can't produce in batches, therefore influences production efficiency.
The current mode of picking up commonly used is by vacuum cup, utilizes vacuum adsorption principle to pick up the thin slice workpiece, and this mode is used to picking up of monolithic workpiece more and transmits.The workpiece of the thin slice in groups arrangement that is loaded in the container is all very tight, and between 1.5-4.7mm, such gap vacuum cup can't enter usually in the gap.When the workpiece of thin slice in groups in being loaded in container need be reprinted in other container in groups, vacuum cup just can't be finished picking action.
In order to pick up the compact arranged workpiece of thin slice in groups in the container, there is design to propose to use the sucker of sheet type, the multi-disc sucker enters container simultaneously, once the thin slice workpiece in the container is picked up.But, because the thin slice workpiece is very frangible, be difficult in picking up and transmitting guarantee success fully that as long as there is a slice to break away from sucker in the multi-disc sucker, the negative pressure value of other sucker will descend rapidly, causes the workpiece of thin slice in groups in the container all to fall, and causes damage.
Along with the continuous attenuate of thickness of thin slice workpiece such as wafer and solar battery sheet, to less than the thin slice workpiece of millimeter level thickness or the picking up and transmit and become the current technical barrier to be solved that has of thin slice workpiece in groups.
The utility model content
The purpose of this utility model provides a kind of Unenclosed high-speed gas flow adsorption and transport device that is used for picking up grouped thin slice workpiece, it is low that it has solved the efficient that exists in the manual transmission, easily pollute, easy fragment, the volume that the conventional vacuum adsorbent equipment exists is big, can't pick up less than the thin slice workpiece of millimeter level thickness or problem such as thin slice workpiece in groups, its structural design compactness, gas circuit distributes rationally, cost is low, applied widely, because of it has adopted monolithic independent, open gas circuit was so the absorption of single sheet workpiece was lost efficacy, can not influence picking up and transmission performance of thin slice workpiece in groups, significantly improve finished product rate and transmission safety reliability and production efficiency.
The technical scheme that the utility model adopted is: this Unenclosed high-speed gas flow adsorption and transport device comprises the mobile control unit that is assembled with gas circuit control unit and sucker, its technical essential is: the described sucker seal group of being made up of air tube and sucker is contained on the suction cup base, and be fixed together with described mobile control unit, the air chamber of described suction cup base is communicated with the gas access of the air tube body of the compressed gas chamber of described gas circuit control unit and described air tube respectively, air-flow in the described compressed gas chamber forms high velocity air by the air tube inner chamber fast through described air chamber and gas access, penetrate from the gas vent of air tube body, along keeping high flow rate to pass through in the open type guiding gutter on described sucker surface, the pressure reduction absorption that produces around the described guiding gutter is positioned at the thin slice workpiece on described sucker surface.
Seal group is contained in the sucker on the described suction cup base, and the shoulder by described sucker both sides closely is connected with described suction cup base with hold-down screw.
The gas access of the air tube body of the described air tube that is communicated with the air chamber of described suction cup base, utilize the air tube sheath of described air tube and be arranged on sealing ring between close-connected described suction cup base and the described sucker, be sealed in the air chamber bottom of described suction cup base.
Advantage and the good effect that the utlity model has are: because the structural design compactness of the utility model Unenclosed high-speed gas flow adsorption and transport device, gas circuit distributes rationally, the a plurality of sucker seal group that can adsorb the thin slice workpiece that air tube and sucker are formed are contained on the same suction cup base, and with can finish required vertical of transmission thin slice workpiece, the mobile control unit commonly used of each action of level is fixed together, utilize the interior air-flow of compressed gas chamber of common gas circuit control unit, form high velocity air by the air tube inner chamber fast through the air chamber of suction cup base and the gas access of air tube, make high velocity air around the open type guiding gutter on corresponding each sucker surface, produce pressure reduction, so pressure reduction suction-operated by non-enclosed high velocity air generation, can pick up, transmission is positioned at the thin slice workpiece on sucker surface, also can be from container (as jam, quartz boat etc.) the thin slice workpiece of disposable picking up grouped in.Because of each sucker is independent with monolithic, open gas circuit is carried out the multi-disc combination, its each sucker can both work alone, and does not also need all vacuum loops of sealing after the multi-disc combination, so cost is low.Even the absorption that has indivedual suckers to be in open state that does not adsorb the thin slice workpiece or single sheet workpiece was lost efficacy, can not exert an influence to other sucker yet, it is highly suitable for arranging closely picking up, transmitting of thin slice workpiece in groups.Such absorption transmitting device does not limit the workpiece shape, and the scope of application is wider, not only can significantly improve finished product rate and operating efficiency, has greatly improved the transmission safety reliability simultaneously yet.Therefore, it is low that the utility model has solved the efficient that exists in the manual transmission, easily pollutes, easy fragment, and the volume that the conventional vacuum adsorbent equipment exists is big, can't pick up less than the thin slice workpiece of millimeter level thickness or problem such as thin slice workpiece in groups, is easy to apply.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of concrete structure schematic diagram of the present utility model.
Fig. 2 is that the B of Fig. 1 is to view.
Fig. 3 is the cutaway view of Fig. 1 along the A-A line.
Fig. 4 is the cutaway view Amplified image of Fig. 3 along the C-C line.
Fig. 5 is the structure enlarged drawing of sucker among Fig. 4.
Sequence number explanation among the figure: 1 gas circuit control unit, 2 suction cup bases, 3 suckers, 4 mobile control units, 5 compressed gas chamber, 6 suckers, 7 guiding gutters, 8 air tubes, 9 hold-down screws, 10 sealing rings, 11 air chambers, 12 gas accesses, 13 air tube inner chambers, 14 air tube bodies, 15 air tube sheaths, 16 high velocity airs, 17 gas vents.
Embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1～3.This Unenclosed high-speed gas flow adsorption and transport device comprises parts such as being assembled with gas circuit control unit 1, sucker 3 and mobile control unit 4.Wherein sucker 3 seal group of being made up of air tube 8 and sucker 6 are contained on the suction cup base 2, and are fixed together with mobile control unit 4, finish required vertical, each action of level of transmission thin slice workpiece with mobile control unit 4.According to user demand, suction cup base 2 can be done different designs at the quantity that sucker 3 is installed, and combines with the sucker 3 of reciprocity quantity and forms the sucker group, as shown in Figure 1.The sucker 3 that seal group is contained on the suction cup base 2 can closely be connected with suction cup base 2 with hold-down screw 9 by the shoulder of sucker 6 both sides.The gas access 12 of the air tube body 14 of the air tube 8 that is communicated with the air chamber 11 of suction cup base 2, utilize the air tube sheath 15 of air tube 8 and be arranged on close-connected suction cup base 2 and sucker 6 contact-making surfaces between sealing ring 10, be sealed in air chamber 11 bottoms of suction cup base 2, to prevent the Compressed Gas formation sinuous flow that leaks.
Common gas circuit control unit 1 comprises general pneumatic elements such as source of the gas, pressure detecting and control element, battery valve, tracheae, the gas-tpe fitting of Compressed Gas.The function of gas circuit control unit 1 is for adsorbent equipment provides Compressed Gas, and the pressure and the break-make of Compressed Gas realized control.Because gas circuit control unit 1 all adopts the pneumatic element of standard, so be not shown specifically in the accompanying drawings, does not also do being described in detail here.
The air chamber 11 of suction cup base 2 is communicated with the gas access 12 of the air tube body 14 of the compressed gas chamber 5 of gas circuit control unit 1 and air tube 8 respectively.The air tube inner chamber 13 of air tube 8 is the long and narrow cavitys that are positioned at air tube body 14 inside, has minimum cavity internal diameter.Compressed Gas air-flow in the compressed gas chamber 5 forms high velocity air 16 by long and narrow air tube inner chamber 13 fast through air chamber 11 and gas access 12, penetrate from the gas vent 17 of air tube body 14, along keeping high flow rate to pass through in the open type guiding gutter 7 on sucker 6 surfaces, produce pressure reduction around guiding gutter 7, the negative-pressure adsorption that pressure reduction forms is positioned at the thin slice workpiece on sucker 6 surfaces.
Operation principle of the present utility model is based on bernoulli principle, utilizes high velocity air 16 when flowing through guiding gutter 7, and the principle that produces draught head around guiding gutter 7 realizes the absorption of thin slice workpiece.The concrete course of work is as follows:
Compressed Gas is provided by gas circuit control unit 1, the Compressed Gas air-flow of compressed gas chamber 5 enters the air-flow that forms isostasy in the air chamber 11 of suction cup base 2 inside, utilization is squeezed in the gas access 12 of the air tube body 14 of the sealing ring 10 gentle needle shields 15 formation sealings between suction cup base 2 and the sucker 6, makes air tube inner chamber 13 become the unique path of Compressed Gas.The air communication of isostasy is crossed gas access 12 and is entered in the air tube inner chamber 13, because air tube inner chamber 13 has minimum cavity internal diameter, Compressed Gas is when passing through, quicken to be high velocity air 16, high velocity air 16 penetrates by gas vent 17, be subjected to the restriction of guiding gutter 7, high velocity air 16 can not spread immediately, but flow along guiding gutter 6, keep high flow rate in guiding gutter 7, the high velocity air in the guiding gutter 7 changes ambient air pressure, produces pressure reduction, surface at sucker 3 produces negative pressure, and negative pressure will be positioned at the thin slice workpiece absorption on sucker 3 surfaces.The gas circuit of each sucker 3 all is independently in the sucker group, as long as the Compressed Gas of authorized pressure is arranged in the air chamber 11, will in the guiding gutter 7 of each sucker 3, form high velocity air 16, produce negative pressure on every sucker 3 surfaces, every sucker 3 works alone, and does not also interact after the multi-disc combination.Both made sucker 3 not adsorb workpiece and be in open state, and also can not exert an influence other sucker 3.Sucker 3 so in groups can realize that the absorption in groups of thin slice workpiece picks up, and increases work efficiency.
The negative pressure of every sucker 3 surface generations depends on the speed of guiding gutter 7 high speed air-flows 16.Adjust gas pressure in the air chamber 11 by gas circuit control unit 1, promptly can change the speed of guiding gutter 7 high speed air-flows 16, realize the adjustment of absorption affinity.Different absorption affinities is applicable to the thin slice workpiece of Different Weight, thickness.Pressure control valve in the gas circuit control unit 1 can detect the pressure condition of Compressed Gas, is not meeting under the condition of work, does not allow mobile control unit 4 work, thereby has guaranteed to be adsorbed the safety of transmission thin slice workpiece.
Claims (3)
1. Unenclosed high-speed gas flow adsorption and transport device, comprise the mobile control unit that is assembled with gas circuit control unit and sucker, it is characterized in that: the described sucker seal group of being made up of air tube and sucker is contained on the suction cup base, and be fixed together with described mobile control unit, the air chamber of described suction cup base is communicated with the gas access of the air tube body of the compressed gas chamber of described gas circuit control unit and described air tube respectively, air-flow in the described compressed gas chamber forms high velocity air by the air tube inner chamber fast through described air chamber and gas access, penetrate from the gas vent of air tube body, along keeping high flow rate to pass through in the open type guiding gutter on described sucker surface, the pressure reduction absorption that produces around the described guiding gutter is positioned at the thin slice workpiece on described sucker surface.
2. Unenclosed high-speed gas flow adsorption and transport device according to claim 1 is characterized in that: seal group is contained in the sucker on the described suction cup base, and the shoulder by described sucker both sides closely is connected with described suction cup base with hold-down screw.
3. Unenclosed high-speed gas flow adsorption and transport device according to claim 1 and 2, it is characterized in that: the gas access of the air tube body of the described air tube that is communicated with the air chamber of described suction cup base, utilize the air tube sheath of described air tube and be arranged on sealing ring between close-connected described suction cup base and the described sucker, be sealed in the air chamber bottom of described suction cup base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201750426U CN201655778U (en) | 2010-04-30 | 2010-04-30 | Non-enclosed high speed gas current absorption and transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201750426U CN201655778U (en) | 2010-04-30 | 2010-04-30 | Non-enclosed high speed gas current absorption and transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655778U true CN201655778U (en) | 2010-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201750426U Expired - Lifetime CN201655778U (en) | 2010-04-30 | 2010-04-30 | Non-enclosed high speed gas current absorption and transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655778U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826479A (en) * | 2010-04-30 | 2010-09-08 | 沈阳富森科技有限公司 | Unenclosed high-speed gas flow adsorption and transport device |
| CN113291814A (en) * | 2021-05-28 | 2021-08-24 | 艾华(无锡)半导体科技有限公司 | Suction disc group for sucking multiple wafers |
-
2010
- 2010-04-30 CN CN2010201750426U patent/CN201655778U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826479A (en) * | 2010-04-30 | 2010-09-08 | 沈阳富森科技有限公司 | Unenclosed high-speed gas flow adsorption and transport device |
| CN113291814A (en) * | 2021-05-28 | 2021-08-24 | 艾华(无锡)半导体科技有限公司 | Suction disc group for sucking multiple wafers |
| CN113291814B (en) * | 2021-05-28 | 2022-09-16 | 艾华(无锡)半导体科技有限公司 | Suction disc group for sucking multiple wafers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101124 Effective date of abandoning: 20120104 |