CN207992683U - A kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure - Google Patents
A kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure Download PDFInfo
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- CN207992683U CN207992683U CN201820438317.7U CN201820438317U CN207992683U CN 207992683 U CN207992683 U CN 207992683U CN 201820438317 U CN201820438317 U CN 201820438317U CN 207992683 U CN207992683 U CN 207992683U
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- silicon wafer
- wafer stage
- connecting plate
- damper rod
- anticollision
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 157
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 157
- 239000010703 silicon Substances 0.000 title claims abstract description 157
- 239000000956 alloy Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001459 lithography Methods 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000010977 unit operation Methods 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 4
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010057855 Hypotelorism of orbit Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- 229910052719 titanium Inorganic materials 0.000 description 1
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- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
A kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure, is mainly used in semiconductor lithography equipment.Airbag apparatus is not only provided in double-platform exchange system for silicon chip platform; it is equipped on each silicon wafer stage and a set of is used for protecting its internal part from the buffer unit that collides and damage; together constitute the dual safety anti-collision system of silicon wafer stage; the dual anticollision protection system has anti-collision effect good; light weight and compact-sized; avoid silicon wafer stage volume it is excessive and caused by stroke reduce the shortcomings that, and convenient for collision occur after restore rapidly the features such as；Compared with prior art, the security protection ability to silicon wafer stage internal structure is substantially increased, collision damage caused by silicon wafer stage parts is greatly reduced.
Description
Technical field
The utility model is related to a kind of anti-collision structure more particularly to a kind of anti-collision structures of 6-freedom micro-motion platform, mainly
Applied in semiconductor lithography equipment, belong to Ultra-precision Turning and detection device technical field.
Background technology
In litho machine magnetic floats double-platform exchange system for silicon chip platform, since two silicon wafer stages do not have push rod or other limits,
The position measurement of sensor is fully relied on to control position and posture of the silicon wafer stage on balance weight；Further, since silicon wafer stage knot
Structure is accurate, so, if when exchanging or when control system failure, two silicon wafer stages collide, and loss will be unable to estimate, because
This, the anti-collision structure of silicon wafer stage is extremely important.In addition, when two silicon wafer stages collide, other than it can damage parts,
It is also possible to rebounding, when in case of such case, measuring system will be unable to work normally, it is necessary to seek again to return
Zero, production efficiency is seriously affected, therefore, anti-collision system needs to be equipped with stable buffer structure, can make the silicon chip to collide
The rapid stop motion of platform.
The anti-collision structure of the prior art is used installs cantilever lever additional in bilateral, if two silicon wafer stage hypotelorisms, sensor
It alarms, the silicon wafer stage of movement can be made to stop rapidly with fast reaction, but if control system is out of control, then can first break cantilever
Bar, then bump against silicon wafer stage；In structure design, if installing crash bar, range sensor and buffer unit additional in silicon wafer stage periphery
Deng, becoming large in size for silicon wafer stage will be made, and increase a large amount of parts and sensor, for integrated level require pole
For high equipment, structure assembly can become extremely complex, undoubtedly considerably increase design difficulty.Existing anti-collision structure is asked
Topic is the decline rank deficient that brief acceleration occurs for collision, is not enough to realize required protection, therefore also needs to increase protection dress
It sets.
Utility model content
The utility model is intended to provide a kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure, make its
Under the premise of with better Anti-bumping protection performance, the size and weight of silicon wafer stage are maximally reduced, and keep its stress equal
It is even.
The technical solution of the utility model is as follows：
A kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure, the double-platform exchange system for silicon chip platform contain
First silicon wafer stage, the second silicon wafer stage, cable stage and airbag apparatus；Each silicon wafer stage includes silicon wafer stage mover and silicon wafer stage stator；
The outer edge in silicon wafer stage stator surrounding is arranged in the airbag apparatus, it is characterised in that：It is equipped on each silicon wafer stage a set of
For protecting its internal part from the buffer unit that collides and damage, and installation receives the power of impact signal on buffer unit
Sensor, the buffer unit are arranged between silicon wafer stage mover and silicon wafer stage stator, and the Outside Dimensions of the buffer unit are answered
Outside Dimensions when more than airbag apparatus unaerated.
Buffer described in the utility model includes 4N roots damper rod, 2N root damper rod connecting poles and an anticollision connecting plate
Component, wherein N are even number；The anticollision connecting plate component includes that an anticollision connecting plate stator and an anticollision connecting plate are dynamic
Son；The anticollision connecting plate stator is fixed below silicon wafer stage mover, and 2N damper rod connecting pole is arranged in anticollision connecting plate
Stator lower surface；The anticollision connecting plate mover is arranged below anticollision connecting plate stator, and by damper rod connecting pole with
Anticollision connecting plate stator links together；2N root damper rods in the 4N root damper rods be arranged in anticollision connecting plate stator with
Between anticollision connecting plate mover, the both ends of every damper rod are separately fixed at anticollision connecting plate stator lower surface and a damper rod
The upper end of connecting pole, in addition wherein one end of each damper rod of 2N roots damper rod be fixed below anticollision connecting plate mover,
The other end is fixed on the lower end of damper rod connecting pole.
In above-mentioned technical proposal, the force snesor be arranged anticollision connecting plate stationary part and subpart it
Between.
The technical characteristics of the utility model also resides in：The damper rod is damped made of elastic memory alloy material
Bar.
The utility model has the following advantages and the technique effect of high-lighting：Anti-collision structure provided by the utility model is not
Only include being provided with a set of air bag anticollision device, collision-prevention device, is also provided with and a set of is used for protecting its internal part slow from what is collided and damage
Flushing device, which has larger cushion effect, to constitute the dual safety anti-collision system of silicon wafer stage.When generation external impact
When, primary protection realizes that buffer deceleration, two level protection reinforce impact force unloading and ensure that direct collision contact does not occur.It is dual anti-
It is good with anti-collision effect to hit protection system, light weight and compact-sized, avoid silicon wafer stage volume it is excessive and caused by stroke subtract
Small disadvantage, and convenient for the features such as restoring rapidly after collision occurs；Compared with prior art, it substantially increases to silicon wafer stage
The security protection ability of internal structure greatly reduces collision damage caused by silicon wafer stage parts.
Description of the drawings
Fig. 1 is a kind of tomograph for silicon wafer stage with two level anti-collision protection structure that utility model provides.
Fig. 2 is the three-dimensional of the silicon wafer stage with two level anti-collision protection structure provided by the invention for removing cable and cable stage
Explosive view.
Fig. 3 is that the structure before two silicon wafer stages provided by the utility model with two level anti-collision protection structure collide is shown
It is intended to.
Fig. 4 is that structure when two silicon wafer stages provided by the utility model with two level anti-collision protection structure collide is shown
It is intended to.
Fig. 5 is that the structure after two silicon wafer stages provided by the utility model with two level anti-collision protection structure collide is shown
It is intended to.
Fig. 6 is the silicon wafer stage buffer unit damper rod location arrangements upward view of two level anti-collision protection structure.
Fig. 7 is buffer unit operation principle schematic diagram when two silicon wafer stage forward directions are collided.
Buffer unit operation principle schematic diagram when Fig. 8 is two silicon wafer stage oblique collision.
Fig. 9 is buffer unit operation principle schematic diagram when single silicon-chip platform forward direction is collided.
Buffer unit operation principle schematic diagram when Figure 10 is single silicon-chip platform oblique collision.
In figure：1- silicon wafer stage movers；2- silicon wafer stage stators；3- buffer units；3a- anticollision connecting plate stators；3b-
Anticollision connecting plate mover；4- airbag apparatus；5- force snesors；7- cable stages；8- damper rods；9- damper rod connecting poles；10-
Rack；The first silicon wafer stages of 11-；The second silicon wafer stages of 12-；13a- the first damper rods of the first silicon wafer stage；The second silicon wafer stages of 13b-
Second damper rod；14a- the second damper rods of the first silicon wafer stage；14b- the second damper rods of the second silicon wafer stage；The first silicon chips of 15a-
Platform third damper rod；15b- the second silicon wafer stage third damper rods；The 4th damper rod of the first silicon wafer stages of 16a-；The second silicon of 16b-
The 4th damper rod of piece platform；The 5th damper rod of the first silicon wafer stages of 17a-；The 5th damper rod of the second silicon wafer stages of 17b-；18a- first
The 6th damper rod of silicon wafer stage；The 6th damper rod of the second silicon wafer stages of 18b-；The 7th damper rod of the first silicon wafer stages of 19a-；19b-
The 7th damper rod of two silicon wafer stages；The 8th damper rod of the first silicon wafer stages of 20a-；The 8th damper rod of the second silicon wafer stages of 20b-.
Specific implementation mode
The design of anti-collision structure must take into consideration possible kinetic energy and impact when included power, can be transferred to silicon wafer stage without
Cause the maximum, force of damage and maximum allowable impact stroke.Preferably impact stroke is sufficiently small, from silicon wafer stage to anticollision knot
The distance of the outer of structure meets smaller, lighter structure simultaneously.Anti-collision structure described in the utility model is a set of in combination with having
Buffer unit and a set of airbag apparatus both can ensure that it can be kept in the correct position during normal operation, and after an impact
It will not do great damage to the structure of silicon wafer stage itself.
As shown in Figure 1, a kind of silicon slice bench double-bench with two level anti-collision protection structure provided by the utility model exchanges system
System contains the first silicon wafer stage 11, the second silicon wafer stage 12, cable stage 7 and airbag apparatus 4；Each silicon wafer stage includes silicon wafer stage mover 1
With silicon wafer stage stator 2；The outer edge in 2 surrounding of silicon wafer stage stator is arranged in the airbag apparatus 4, is equipped on each silicon wafer stage
It is a set of to be used for protecting its internal part from the buffer unit 3 that collides and damage, and installation receives impact letter on buffer unit
Number force snesor 5, the buffer unit be arranged between silicon wafer stage mover 1 and silicon wafer stage stator 2, the buffer unit 3
Outside Dimensions should be greater than Outside Dimensions when 4 unaerated of airbag apparatus.
The three-dimensional explosion of Fig. 2 silicon wafer stages with two level anti-collision protection structure provided by the utility model for removing cable stage
Figure.Fig. 3 is a kind of silicon wafer stage buffer unit damper rod position with two level anti-collision protection structure of embodiment of the utility model
Set arrangement upward view.In the present embodiment, the buffer unit 3 includes 4N (N is even number) root damper rod 8,2N root damper rods
Connecting pole 9 and an anticollision connecting plate component；The anticollision connecting plate component includes an anticollision connecting plate stator 3a and one
A anticollision connecting plate mover 3b；The anticollision connecting plate stator 3a is fixed on 1 lower section of silicon wafer stage mover, anticollision connecting plate stator
The lower surfaces 3a connect four damper rod connecting poles 9；The anticollision connecting plate mover 3b is arranged at anticollision connecting plate stator 3a
Side, and linked together by damper rod connecting pole 9 and anticollision connecting plate stator 3a；2N roots resistance in the 4N root damper rods
Buddhist nun's bar is arranged between anticollision connecting plate stator 3a and anticollision connecting plate mover 3b, and the both ends of the damper rod 8 are separately fixed at anti-
It hits on connecting plate stator 3a and the upper end of four damper rod connecting poles 9, the other 2N roots damper rod 8 is fixed on anticollision connection
Below plate mover 3b, the other end is fixed on the lower end of four damper rod connecting poles 9；The silicon wafer stage each of the edges setting is at least
A piece damper rod；The damper rod can only bear pulling force；The anticollision connecting plate stator 3 and anticollision connecting plate mover 4 select
It is constituted with the small material of strength high density, uses carbon fibre composite to manufacture in the present embodiment.
Damper rod 8 is bent under the action of compressive load, is only just worked when being stretched load.In operating process,
Damper rod works in a manner of similar to pretension spring, is only just deformed when impact force is higher than pretension.Because load is not high
In pretension, this is uniformly distributed between ensuring the damper rod that power works.In the present embodiment, the damper rod is by fabulous elasticity
Memorial alloy is constituted.Such as a kind of metal for being referred to as " Nitinol " selected from alloy series, it includes nickel and titanium substantially phase
Deng mixing, other materials can also, such as oil or elastomeric spring buffer unit or be designed to the plasticity when impacting
The damper of deformation.When colliding, which is compressed, and the impact force for reaching silicon wafer stage is just reduced, using pole
The memorial alloy of good elasticity enables the buffer unit to have the size and weight that buffer unit reduction may be selected than other.
The force snesor 5 is arranged between the stationary part and subpart of anticollision connecting plate；The damper rod
The memorial alloy of fabulous elasticity is selected to constitute；The material that the stator and mover of the anticollision connecting plate select strength high density small
It constitutes.
Fig. 3, Fig. 4 and Fig. 5 indicate respectively before two silicon wafer stages with two level anti-collision protection structure collide, collision when and
Structural schematic diagram after colliding.As shown in figure 4, in case of out of control, it is most likely that central collision occurs.When two silicon chips
When platform collides, when the first silicon wafer stage 11 and the second silicon wafer stage 12 collide, what is be in contact first is two anticollision dresses
The buffer unit 3 set, here it is level-one anti-collision structures, it is therefore an objective to unload impact force, as shown in Figure 5；But due to the structure
Limitation can not possibly make two silicon wafer stage stop motions completely, it is therefore desirable to two level anti-collision structure, i.e. anti-collision air bag be arranged.When two
When the buffer unit of silicon wafer stage occurs relative motion relative to the silicon wafer stage and reaches setting value, force snesor 5 is triggered to air bag
Anticollision device, collision-prevention device 3, which sends out signal, makes air bag instantaneous expansion, the air bag of two silicon wafer stages that will unload impact force caused by collision,
Simultaneously according to the conservation of momentum, so that two silicon wafer stages is separated and be not in contact, as shown in fig. 6, finally playing protection silicon wafer stage
The effect of structure.
The operation principle of the two level anti-collision protection structure of the utility model is as follows：
Level-one Anti-bumping protection：When the first silicon wafer stage 11 and the second silicon wafer stage 12 move toward one another and when colliding, two silicon
Anticollision connecting plate mover 3b in the buffer unit 3 of piece platform is in contact first；Keep the anticollision connecting plate of the first silicon wafer stage 11 dynamic
Relative displacement occurs for sub- 3b and anticollision connecting plate stator 3a, and the damper rod of buffer unit 3 is stretched, and is touched to counteract part
Hit generated energy；Simultaneously, phase occurs for the anticollision connecting plate mover 3b of the second silicon wafer stage 12 and anticollision connecting plate stator 3a
To displacement, the damper rod of buffer unit 3 is stretched, to counteract energy caused by local collision；It is anti-for level-one above
Hit protection.
Two level Anti-bumping protection：When the anticollision connecting plate mover 3b and anticollision connecting plate of the buffer unit 3 of two silicon wafer stages are fixed
Triggering force snesor 5 sends out signal to air bag anticollision device, collision-prevention device 4 when sub- 3a occurs relative displacement and reaches setting value；Air bag anticollision fills
Set 4 receive the signal that force snesor 5 is sent out after make air bag instantaneous expansion, the swelling gasbag of two silicon wafer stages is by two silicon at this time
Piece platform moment separates, and the generated impact force of collision is unloaded, while according to the conservation of momentum, two silicon wafer stages being made to separate
It is not in contact, the effect of protection silicon wafer stage structure is finally played, to form two level Anti-bumping protection.
If Fig. 7 to Figure 10 is a kind of silicon wafer stage hair with two level anti-collision protection structure embodiment provided by the utility model
Four kinds of main conditions schematic diagrames of buffer unit work when raw collision.In the present embodiment, damper rod uses 8, (such as Fig. 6 institutes
Show).
In double-workpiece-table operational process, the crash type that can mainly occur includes：Dual stage forward direction collides (Fig. 7), dual stage
Oblique collision (Fig. 8), separate unit and rack forward direction collision (Fig. 9) and separate unit and stand angularly collision (Figure 10).Forward direction collision with tiltedly
Difference to collision is mainly for anticollision part centre.
Fig. 6 is that the silicon wafer stage buffer unit of two level anti-collision protection structure is faced upward using the location arrangements of 8 damper rod embodiments
View, describe separately below the embodiment two silicon wafer stages collide before, collision when and the operation principle after colliding.
Buffer unit operation principle schematic diagram when Fig. 7 show the collision of dual stage forward direction.In the present embodiment, when the first silicon chip
When central collision occurs for platform 11 and the second silicon wafer stage 12, the anticollision connecting plate mover of two silicon wafer stages collides, the first silicon chip
The anticollision connecting plate mover of platform 11 is moved relative to its anticollision connecting plate stator along X negative directions, then the first silicon wafer stage first damps
Bar 13a and the 6th damper rod 18a stress of the first silicon wafer stage stretch；The anticollision connecting plate mover of second silicon wafer stage 12 is anti-relative to it
It hits connecting plate stator to move along X positive directions, then second silicon wafer stage the first damper rod 13b and the 6th damper rod 18b of the second silicon wafer stage
Stress stretches, the stretcher strain of this four damper rods will buffer portion collision energy, to reduce the damage of silicon wafer stage.
Buffer unit operation principle schematic diagram when Fig. 8 is dual stage oblique collision.In the present embodiment, when the first silicon wafer stage 11
The upper right corner and the lower left corner of the second silicon wafer stage 12 when oblique (non-to the heart) collision occurs, the anticollision connecting plates of two silicon wafer stages moves
Son collides, and the anticollision connecting plate mover of the first silicon wafer stage 11 moves simultaneously relative to its anticollision connecting plate stator along X negative directions
Relative rotation counterclockwise is generated, then first the first damper rod of silicon wafer stage 13a, the first silicon wafer stage third damper rod 15a, the first silicon
The 5th damper rod 17a of piece platform and the 7th damper rod 19a stress of the first silicon wafer stage stretch；The anticollision connecting plate of second silicon wafer stage 12 is dynamic
Son 4 moves along X positive directions relative to its anticollision connecting plate stator and generates relative rotation counterclockwise, then the second silicon wafer stage the
One damper rod 13b, the second silicon wafer stage third damper rod 15b, the 5th damper rod 17b of the second silicon wafer stage and the resistance of the second silicon wafer stage the 7th
Buddhist nun's bar 19b stress stretches, the stretcher strain of this eight damper rods will buffer portion collision energy, to reduce silicon wafer stage
Damage.
Fig. 9 is buffer unit operation principle schematic diagram when separate unit forward direction is collided.In the present embodiment, when the first silicon wafer stage 11
When central collision occurs with rack 10, the anticollision connecting plate mover of the silicon wafer stage collides, and the anticollision of the first silicon wafer stage 11 connects
Fishplate bar mover is moved relative to its anticollision connecting plate stator along X negative directions, then first silicon wafer stage the first damper rod 13a and the first silicon
The 6th damper rod 18a stress of piece platform stretches, the stretcher strain of this four damper rods will buffer portion collision energy, to subtract
The damage of chip platform.
Buffer unit operation principle schematic diagram when Figure 10 is separate unit oblique collision.In the present embodiment, when the first silicon wafer stage
When 11 upper right corner and oblique (non-to the heart) collision of one jiao of generation of rack 10, the anticollision connecting plate mover of the silicon wafer stage relative to
Its anticollision connecting plate stator moves along X negative directions and generates relative rotation counterclockwise, then first the first damper rod of silicon wafer stage
13a, the first silicon wafer stage third damper rod 15a, the first silicon wafer stage the 5th damper rod 17a and the 7th damper rod 19a of the first silicon wafer stage
Stress stretches；The stretcher strain of this eight damper rods will buffer portion collision energy, to reduce the damage of silicon wafer stage.
Claims (4)
1. a kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure, which contains
One silicon wafer stage (11), the second silicon wafer stage (12), cable stage (7) and airbag apparatus (4)；Each silicon wafer stage includes silicon wafer stage mover
(1) and silicon wafer stage stator (2)；Outer edge of airbag apparatus (4) setting in silicon wafer stage stator (2) surrounding, it is characterised in that：
Be equipped on each silicon wafer stage it is a set of be used for protecting its internal part from the buffer unit (3) that collides and damage, and slow
Installation receives the force snesor (5) of impact signal on flushing device, and the buffer unit is arranged in silicon wafer stage mover (1) and silicon chip
Between platform stator (2), the Outside Dimensions of the buffer unit (3) should be greater than Outside Dimensions when airbag apparatus (4) unaerated.
2. a kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure as described in claim 1, feature exist
In：The buffer unit (3) includes that 4N roots damper rod (8), 2N root damper rod connecting poles (9) connect board group with an anticollision
Part, wherein N are even number；The anticollision connecting plate component includes an anticollision connecting plate stator (3a) and an anticollision connecting plate
Mover (3b)；The anticollision connecting plate stator (3a) is fixed below silicon wafer stage mover (1), 2N damper rod connecting pole (9)
It is arranged in the lower surface anticollision connecting plate stator (3a)；The anticollision connecting plate mover (3b) is arranged in anticollision connecting plate stator
Below (3a), and linked together by damper rod connecting pole (9) and anticollision connecting plate stator (3a)；The 4N root damper rods
In 2N root damper rods be arranged between anticollision connecting plate stator (3a) and anticollision connecting plate mover (3b), every damper rod (8)
Both ends be separately fixed at the upper end of the anticollision connecting plate stator lower surface (3a) and a damper rod connecting pole (9), other 2N roots
Wherein one end of each damper rod (8) of damper rod (8) is fixed below anticollision connecting plate mover (3b), and the other end is fixed on
The lower end of damper rod connecting pole (9).
3. a kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure as claimed in claim 2, feature exist
In：The force snesor (5) is arranged between the stationary part and subpart of anticollision connecting plate.
4. a kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure as claimed in claim 2, feature exist
In：Damper rod damper rod made of elastic memory alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820438317.7U CN207992683U (en) | 2018-03-29 | 2018-03-29 | A kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820438317.7U CN207992683U (en) | 2018-03-29 | 2018-03-29 | A kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure |
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| Publication Number | Publication Date |
|---|---|
| CN207992683U true CN207992683U (en) | 2018-10-19 |
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ID=63830230
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|---|---|---|---|
| CN201820438317.7U Active CN207992683U (en) | 2018-03-29 | 2018-03-29 | A kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345181A (en) * | 2018-03-29 | 2018-07-31 | 清华大学 | A kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure |
-
2018
- 2018-03-29 CN CN201820438317.7U patent/CN207992683U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345181A (en) * | 2018-03-29 | 2018-07-31 | 清华大学 | A kind of double-platform exchange system for silicon chip platform with two level anti-collision protection structure |
| CN108345181B (en) * | 2018-03-29 | 2024-07-23 | 清华大学 | Silicon wafer bench double-bench exchange system with secondary anti-collision protection structure |
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