CN1182805A - Rotary target column type magnetic controlled sputtering device - Google Patents
Rotary target column type magnetic controlled sputtering device Download PDFInfo
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- CN1182805A CN1182805A CN 97109839 CN97109839A CN1182805A CN 1182805 A CN1182805 A CN 1182805A CN 97109839 CN97109839 CN 97109839 CN 97109839 A CN97109839 A CN 97109839A CN 1182805 A CN1182805 A CN 1182805A
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Abstract
The present invention discloses a rotary target coloumn type magnetic control sputter, including supporting frame and target component. It is characterized by that the pole shoe of the magnetic component is made into closed-loop pole shoe, magnetic steel is placed in the closed groove of the pole shoe, the above-mentioned magnetic component is sealed by thin-wall stainless steel tube, and made into one slightly shorter than target tube, its external surface is covered with hollow copper target tube of sputtering material, and the spindle is placed on the base through dynamic seal component and leadout driving component, and is connected with target tube by means of loose type flange. Said invention possesses the advantages of convenient replacement of target material, high utilization rate of target material and pure and clean coating layer.
Description
The present invention relates to the sputter lining of material, relate in particular to rotary target column type magnetic controlled sputtering device.
Surperficial lining for such large area substrates such as cladding glass, solar control film glass, ITO film glass, usually finish by the planar magnetic control sputtering device, because the size of substrate is big especially, so the structure of magnetic controlling target is very big, change the target inconvenience, and the target utilization of this target is very low, generally below 20%.
Recent years, for overcoming the above-mentioned shortcoming of planar target at lining big area workpiece, the column type target is developed.No. 5096562 patents of the U.S. have proposed a kind of rotary target column type magnetic controlled sputtering device, and this sputter device comprises target pipe, magnetic assembly, two parts such as supporter that are arranged in the target pipe that the copper pipe of a periphery cladding sputter material constitutes.The target pipe of column type can be around its axle center rotation, magnetic assembly transfixion, the target pipe connects negative high voltage during work, vacuum chamber wall earthing potential, electric field E and magnetic field B form the cross field of an E * B, and working gas molecule (as Ar) is by this cross field ionization, two immobilized straight line plasma bodys that are parallel to the target length direction have been produced, positive ion in the plasma body is subjected to the attraction of negative electrode target negative potential and bombards target surface, and the target surface atom produces sputter effusion target surface, finally is deposited on substrate surface and forms film.Because the target pipe is in rotation, two immobilized straight line plasma bodys are done the scanning bombardment with respect to target surface, so target surface has been subjected to ise comparatively uniformly, so target utilization is higher; The size of column type target and structure are all less, are convenient to processing and make.These all are its advantages.
But this sputter device still has some defectives:
1. because magnetic assembly and water inlet pipe are connected in one, it is very inconvenient to change target during the replacing target, changes target and needs the dozens of minutes time approximately, has not only reduced production efficiency, and has made vacuum chamber be exposed to atmosphere for a long time, and only attached a large amount of deleterious gases influence the quality of plated film.
2. the magnetic field trap of its magnetic assembly is the straight line of two openings, and plasma body is spread at the straight line end, not only can reduce discharge effect, and can make the outer part of those sputtering zones produce sputter even string arc discharge, influences the quality of rete and the stability of discharge.
3. the magnetic assembly directly is immersed in the cooling, and magnet steel can get rusty rotten very soon.
4. when changing target very easily water coolant raffinate water clock to vacuum chamber.
The purpose of this invention is to provide a kind of target convenience, a kind of rotary target column type magnetic controlled sputtering device that rete is pure of changing.
The present invention takes following measures in order to achieve the above object: it comprises resting support, target assembly, feature is that target pipe assembly comprises magnetic assembly, target pipe, the magnetic assembly has pole shoe, pole shoe one side has oval magnet steel counterbore, the another side relative with it has the aqueduct deep gouge, the antirust nickel dam of surface lining, the left end of this pole shoe stainless steel left end spindle nose of burn-oning, the right side of this spindle nose has a water cavity, the left side be hollow boss, and the hollow boss of left end spindle nose is provided with lateral pin and follows closely, the burn-on stainless steel right-hand member spindle nose of a band boss of the right-hand member of pole shoe; Arrange permanent magnet steel in the pole shoe magnet steel counterbore, the semicircle even magnetic sheet of a pure iron is pasted at the top of magnet steel, filling plastics spacing piece in the gap of pole shoe and magnet steel, burn-on in the pole shoe aqueduct deep gouge water guide copper pipe of a both ends open, the periphery of said modules is sealed a thin-wall stainless steel, makes sealed magnetic assembly; Put a tetrafluoroethylene slide block of taking back the water inclined hole on the left end spindle nose of above-mentioned magnetic assembly, cooperate an antirust radial thrust bearing on the right-hand member spindle nose, the magnetic assembly is arranged in the target pipe coaxially, target pipe right-hand member is provided with blind flange, blind flange one end band dead eye, the other end band boss, be provided with sealing-ring between blind flange and target pipe one end, blind flange is with piecing together tight fixed by nut on the target pipe, target pipe the other end loose flange, sealing-ring, fixing seal is on the flange of axle one end band cone-shaped inner hole.
Compared with prior art, sputter device of the present invention has the following advantages:
1. it is very convenient to change target, changes target and only needs the several minutes time, has improved production efficiency widely, and this brings benefit to scale operation.
2. can produce the closed plasma body of runway shape, the plasma body indiffusion; Discharging efficiency and discharge stability are improved, and can make the outer parts of non-sputter material produce sputter, help the purity of rete.
3. owing to adopt runway shape plasma body uniform speed scanning, therefore greatly reduce production cost.
4. after magnetic structure adopts wrapper technology, completely cut off magnet steel, pole shoe directly contacts with water coolant, prolonged the life-span of magnetic assembly greatly and improved the magnetic stability of magnetic assembly.
5. sputter device of the present invention, its water inlet pipe and water outlet pipe, electrode are drawn and driving mechanism is all drawn at same end, and be provided with surface bearing, therefore this sputter device not only can horizontal operation, can also vertical work, and on vacuum chamber, only need a fairlead just can install, can dwindle the volume of vacuum chamber greatly, reduce the possibility of gas leakage, for transforming existing equipment with the present invention, this brings very big benefit undoubtedly especially.
Elaborate below in conjunction with accompanying drawing.
Fig. 1 is the sectional view of a kind of rotary target column type magnetic controlled sputtering device of the present invention;
Fig. 2 is the sectional view along Figure 1B-B;
Fig. 3 be Figure 1A to partial view;
Fig. 4 is a kind of magnetic arrangement of components figure with rotary target column type magnetic controlled sputtering device of double-faced sputter of the present invention;
Fig. 5 is the magnetic arrangement of components figure that another kind of the present invention has the rotary target column type sputter device of double-faced sputter;
Fig. 6 is the partial view of the magnetic assembly column type magnetic controlled sputtering device that can rotate.
Rotary target column type magnetic controlled sputtering device comprises resting support, target assembly.Resting support is drawn part by axle, dynamic sealing assembly, and driven unit is formed, and target assembly is made up of magnetic assembly, target pipe.Wherein the magnetic assembly has pole shoe 34, it is made by good magnetically permeable material (as pure iron), the one side has an oval counterbore 34a that can form loop line magnetic potential trap, and the another side relative with it has an aqueduct deep gouge [34b] that can embed the water guide copper pipe, the nickel dam that surperficial lining is antirust.The left end of this pole shoe stainless steel left end spindle nose 32 of burn-oning, the right side of this spindle nose has a water cavity 32a, the left side be hollow boss, and the hollow boss of left end spindle nose of spindle nose 32 is provided with lateral pin and follows closely 31, the burn-on stainless steel right-hand member spindle nose 39 of a band boss of the right-hand member of pole shoe 34; Arrange some high magnetic energy levels among the pole shoe magnet steel counterbore 34a, the water of high-coercive force magnet steel 38 of a specified duration, the semicircular even magnetic sheet 37 of pure iron is pasted at the top of magnet steel, and even magnetic sheet is used for the Surface field of even magnet steel, filling plastics spacing piece 44 in the gap of pole shoe and magnet steel.Burn-on among the kerve 34b of the pole shoe water guide copper pipe 35 of a both ends open.The periphery of said modules is sealed a thin-wall stainless steel 36 and is made a length and slightly be shorter than the target pipe, and diameter is less than the sealed magnetic assembly I of target endoporus.
Because it is rotten that magnet steel, pure iron one class material are easy to get rusty, adopt above-mentioned encapsulating structure after, completely cut off them and directly contacted with water.The magnetic structure of closed deep gouge shape can produce and has the magnetic potential trap that two straight lines and two semicircles are runway shape.
Put a tetrafluoroethylene slide block 30 on the left end spindle nose 32 of above-mentioned magnetic assembly, cooperate an antirust radial thrust bearing 40 on the right-hand member spindle nose 39 with some backwater inclined holes.This magnetic assembly is arranged in the target pipe 33 coaxially.Target pipe right-hand member is arranged one one end band dead eye, the stainless steel blind flange 43 of the other end band boss, be provided with sealing-ring 41 between blind flange and target pipe one end, blind flange is fixed on the target pipe with piecing together tight nut 42, target pipe left end loose flange 28, sealing-ring 29, fixing seal is on the flange 27a of axle 27 1 end band cone-shaped inner holes, because the positioning supports of slide block 30 and bearing 40, this magnetic assembly can rotate freely in the target pipe.
Resting support has axle 27, and 20, one insulation of 19, two cup seal rings of needle bearing axle bed 21 is arranged on axle long tube right side coaxially, is fixed on the base 22 through exterior seal ring 23.Needle bearing is selected the long bearing of band inner ring for use, and bearing inner race 19a is engaged on the axle, and when axle need move axially, bearing inner race can move axially with bearing, simultaneously, can not damage the slick trim of axle again.The left end of stainless steel base 22 has a counterbore that internal diameter is bigger, in order to parts such as driving wheel 17, right-hand member bench insulator 21 to be installed, a wherein side of this counterbore has one can be by the opening of rotating band 17a or driving stem, base by sealing-ring 24 and several screw retention on chamber walls 25.The stainless steel shielding sheet 26 that its endoporus is slightly larger than axle is fixed coaxially with several flat screws in the right side of base, there are a very little gap 26a in shield blade and base end face, the effect of shield blade is for barrier film deposits to insulation axle bed and destroy insulating property, and also the heat width of cloth during the maskable sputter is penetrated simultaneously.
A copper driving wheel 17 (synchronous pulley or worm gear) that is used for the drive spindle rotation is fixed with several chapiter screws in axle middle part.Arrange between this driving wheel and the insulation axle bed 21 that a plain thrust bearing 18, the effect of this surface bearing are when preventing that the sputter device from vertically working, axle glides, and when axle needs left during axial advance, the upper and lower circle of surface bearing can separate.
The left end of axle is arranged an insulation left bracket 13 coaxially, and axle bed is made by tetrafluoroethylene.Bench insulator 13 left sides, a left side are provided with intake antrum 6a, are provided with backwater cavity 10b, have prosopyle 9 and posticum 10 on left bench insulator, and communicate with intake antrum and backwater cavity respectively, are fixed on coaxially on the stainless steel base 22 by some screws axle bed that should insulate.Arrange pressure ring 11 successively between axle and the insulation left bracket, several are used for sealing the cup seal ring 12 of water, and the needle bearing 16 of band inner ring.The effect of the slip inner ring 16A of this needle bearing is similar to aforesaid needle bearing 19, the right alignment when these two needle bearings can guarantee the sputtering target horizontal positioned with anti-around Qu Nengli, thereby guarantee that dynamic sealing assembly has good sealing property when rotating.
The right-hand member of insulation left bracket is arranged the carbon brush 14 of several band springs symmetrically, and they receive power cathode by brass screw 15.The existence of spring can make carbon brush and copper driving wheel electrically contact well.
The cooling module of sputter device is welded by water guide intubate 7 intake antrum 6a flanges 5 stainless steel components such as grade.The left end of water guide intubate 7 is welded in the centre hole of intake antrum bottom 6, and the other end has an open slot, and it can insert in the through hole of left spindle nose 32 of above-mentioned magnetic assembly and by spindle nose pin 31 magnetic assembly and conduit are connected as a single entity.Have several water inlet through holes 6b on the sidewall of intake antrum, flange 5 is fixed on the left port of bench insulator 13 by several screws 4 of sealing-ring 8 usefulness.Tighten screw 4 back lockable magnetic assemblies, seal water coolant simultaneously again.
The target pipe 33 of sputter device of the present invention is made of the copper pipe of outside surface cladding sputter material.The two ends of copper pipe are shaped on outside screw respectively, and the copper pipe internal surface removes two ends precision work slightly, and middle portion can not done any processing.Sputter material can be metal, alloy, also can be that stupalith is (as SiO
2, ITO, Al
2O
3Deng), they are multiple in the copper pipe periphery with soldering processes.Be difficult for being processed into the stupalith of long tube for those, can make several becates, be welded on the copper pipe periphery more one by one.For itself making long tube easily and metal, the alloy material of fine and close good heat conductive performance being arranged, can be that the target pipe is directly made in substrate then without copper pipe.
Water coolant flows into intake antrum 6a from the prosopyle 9 of left bench insulator 13, successively by the left spindle nose water cavity 32a of water guide intubate 7, magnetic assembly, the gap that copper pipe 35 flows to magnetic assembly right side, gap, the backwater cavity 10b by water guide inclined hole, axle and the water guide intubate of the gap of magnetic assembly and target pipe, slide block 30 flows out from the posticum 10 of left bench insulator at last again.
The negative pole of power supply is received on the target pipe 33 by brass screw 15, carbon brush 14, copper driving wheel 17, axle 27.The positive pole of power supply is received on the vacuum-chamber wall.
When sputter device horizontal operation, the right-hand member of target pipe can be fixed in the vacuum chamber by a bearing, bench insulator and support (not shown).
When the sputter device was vertically worked, the right-hand member of target pipe can not installed support accessory.
Its resting support system of sputter device of the present invention can be installed in the atmosphere of vacuum chamber, also can be with flange 2, sealing-ring 3, annular seal space 1 (being represented by dotted lines among the figure), seal on the open pore that is installed to vacuum chamber, at this moment, water pipe, contact conductor, drive element all can be drawn from this opening, all be in the same side because these draw part, introduce so only need a vacuum openings can finish sealing.
Driving mechanism is by the driving wheel 17 of band 17a or worm screw drive synchronously, thus the rotation of drive target pipe, and the magnetic assembly is in the immobilized state all the time.Connect power supply after vacuumizing, fill working gas, just one of side generation at target surface has the plasma body that two straight lines are the loop line of runway shape, and during the rotation of target pipe, plasma body just evenly scans at the target tube-surface.
When needs change target,, target pipe 33 is unloaded with magnetic assembly I as long as loose flange is turned on knuckle buster, the magnetic assembly is shifted out from the target pipe, put into new target pipe, loose flange is screwed into new target pipe, promptly finish the target process of changing, the whole target process of changing only needs 3～5 fens clock times.
The magnetic assembly of sputter device of the present invention also can be with the structural arrangement of Fig. 4, arranges magnet steel 38 at the pure iron pipe of the square tube type font of going up a hill, and wherein the magnetic pole of the vertical magnet steel of placing is opposite with the polarity of the magnet steel of two horizontal positioned.The square iron pipe is not only as pole shoe but also as aqueduct, and the periphery of magnetic assembly is sealed a thin-wall stainless steel equally.
Sometimes need be in the sputter simultaneously of the two sides of target pipe, can adopt the magnetic assembly of Fig. 5 form this moment.Open an elliptoid counterbore respectively in the both sides of pole shoe 34, respectively arrange row's magnet steel in the counterbore, the homopolarity of two row's magnet steel outwardly, a water guide copper pipe is respectively arranged in addition two sides of pole shoe, a thin-wall stainless steel is sealed in the outside of this assembly equally.
Some sputter occasion wishes that the magnetic assembly rotates, and target pipe transfixion only needs that water inlet intubate 7 is made into dynamic seal this moment and draws, and just can realize above-mentioned purpose, and Fig. 6 shows the partial view of this structure.Open a slightly larger in diameter in the through hole of water inlet pipe at 6 centers, intake antrum bottom, arrange an O RunddichtringO 49 in this through hole, a through hole is opened at left end flange 5 centers, and a pressing plate 47 of being with conical through-hole is installed with screw in this flange outside, arranges an O RunddichtringO 48 in the tapered hole.The left end of water inlet intubate 7 is opened some through holes, stainless minor axis 45 of its left port weldering, and a driving wheel 46 is arranged in this minor axis outside.The water inlet intubate of band minor axis is arranged in the centre hole of above-mentioned parts coaxially.Driving wheel 46 drags into water intubate and then the rotation of drive magnetic assembly, and when driving the wheel stall, the resistance of sealing-ring 48,49 and driving speed change gear resistance are enough to make the magnetic assembly to stop operating.
Claims (10)
1. rotary target column type magnetic controlled sputtering device, it comprises resting support, target assembly, it is characterized in that said target pipe assembly comprises the magnetic assembly, the target pipe, the magnetic assembly has pole shoe [34], pole shoe one side has oval magnet steel counterbore [34a], the another side relative with it has aqueduct deep gouge [34b], the antirust nickel dam of surface lining, the left end of this pole shoe stainless steel left end spindle nose [32] of burn-oning, the right side of this spindle nose has a water cavity [32a], and the left side is hollow boss, the hollow boss of left end spindle nose is provided with lateral pin nail [31], the burn-on stainless steel right-hand member spindle nose [39] of a band boss of the right-hand member of pole shoe [34]; Arrange permanent magnet steel [38] in the pole shoe magnet steel counterbore [34a], the semicircle even magnetic sheet [37] of a pure iron is pasted at the top of magnet steel, filling plastics spacing piece [44] in the gap of pole shoe and magnet steel, burn-on in the pole shoe aqueduct deep gouge [34b] the water guide copper pipe [35] of a both ends open, the periphery of said modules is sealed a thin-wall stainless steel [36], make on the left end spindle nose [32] of the above-mentioned magnetic assembly of sealed magnetic assembly [1] and put a tetrafluoroethylene slide block [30] of taking back the water inclined hole, right-hand member spindle nose [39] is gone up and is cooperated an antirust radial thrust bearing [40], the magnetic assembly is arranged in the target pipe [33] coaxially, target pipe right-hand member is provided with blind flange [43], blind flange one end band dead eye, the other end band boss, be provided with sealing-ring [41] between blind flange and target pipe one end, blind flange is fixed on the target pipe with piecing together tight nut [42], target pipe the other end loose flange [28], sealing-ring [29], fixing seal is on the flange [27a] of axle [27] one end band cone-shaped inner holes.
2. a kind of rotary target column type magnetic controlled sputtering device according to claim 1 is characterized in that said resting support comprises axle, and dynamic sealing assembly is drawn driven unit; Dynamic sealing assembly has bench insulator [13], [21] that the left and right end of axle is provided with, two bench insulators are fixed on the base [22], be provided with pressure ring [11] between bench insulator [13] and axle successively, cup seal ring [12] is provided with cup seal ring [20] between bench insulator [21] and axle.
3. a kind of rotary target column type magnetic controlled sputtering device according to claim 1 and 2, it is characterized in that the said driven unit of drawing is included between bench insulator [13] and the bench insulator [21] and is provided with driving wheel [17], be provided with needle bearing [16] between bench insulator [13] and the axle, between bench insulator [21] and axle, be provided with needle bearing [19], be provided with plain thrust bearing [18] between bench insulator [21] and the driving wheel [17], arrange carbon brush [14] symmetrically on bench insulator [13] right side, be connected with the negative pole of power supply by screw [15].
4. a kind of rotary target column type magnetic controlled sputtering device according to claim 1 and 2 is characterized in that the copper pipe of said target pipe [33] for outside surface cladding sputter material, and sputter material is a metal, alloy, and stupalith, stupalith are SiO
2, ITO, Al
2O
3
5. a kind of rotary target column type magnetic controlled sputtering device according to claim 1 and 2 is characterized in that said magnetic assembly is locked with lateral pin nail [31] through the hollow boss of left end spindle nose [32] by axle intermediary water guide intubate [7].
6. a kind of rotary target column type magnetic controlled sputtering device according to claim 1 and 2, the cooling module that it is characterized in that said magnetic assembly is that water coolant flows into intake antrum [6a] from the prosopyle [9] of left bench insulator [13], successively by water guide intubate [7], the water cavity [32a] of left side spindle nose, water guide copper pipe [35], flow to the gap on magnetic assembly right side, again by the gap between magnetic assembly and the target pipe, the inclined hole of slide block [30], the gap of axle and aqueduct, backwater cavity [10b] flows out from the posticum [10] on the left bench insulator.
7. a kind of rotary target column type magnetic controlled sputtering device according to claim 1 and 2 is characterized in that said target pipe and loose flange, and pieces together tight nut with being threaded.
8. a kind of rotary target column type magnetic controlled sputtering device according to claim 1 and 2 is characterized in that said axle bed right side fixes its endoporus coaxially greater than the stainless steel of axle shielding sheet [26], is provided with gap [26a] between shield blade and base end face.
9. a kind of rotary target column type magnetic controlled sputtering device according to claim 1 and 2, it is characterized in that said magnetic assembly is the font arrangement magnet steel [38] of going up a hill at square pure iron pipe, wherein the magnetic pole of the vertical magnet steel of placing is opposite with the polarity of the magnet steel of two horizontal positioned, and the square iron pipe is not only as pole shoe but also as aqueduct.
10. a kind of rotary target column type magnetic controlled sputtering device according to claim 1 and 2, it is characterized in that said magnetic assembly is for having the ellipticity counterbore in the both sides of pole shoe [34], respectively arrange row's magnet steel [38] in the counterbore, the homopolarity of two row's magnet steel outwardly, pole shoe in addition two sides is respectively arranged a water guide copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109839A CN1053712C (en) | 1997-04-30 | 1997-04-30 | Rotary target column type magnetic controlled sputtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109839A CN1053712C (en) | 1997-04-30 | 1997-04-30 | Rotary target column type magnetic controlled sputtering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1182805A true CN1182805A (en) | 1998-05-27 |
| CN1053712C CN1053712C (en) | 2000-06-21 |
Family
ID=5171234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97109839A Expired - Fee Related CN1053712C (en) | 1997-04-30 | 1997-04-30 | Rotary target column type magnetic controlled sputtering device |
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|---|---|
| CN (1) | CN1053712C (en) |
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| CN102296273A (en) * | 2010-06-24 | 2011-12-28 | 上海子创镀膜技术有限公司 | Rotating cathode drive system for vacuum magnetron sputtering coating film |
| CN102296273B (en) * | 2010-06-24 | 2013-06-05 | 上海子创镀膜技术有限公司 | Rotating cathode drive system for vacuum magnetron sputtering coating film |
| CN102230161A (en) * | 2011-06-28 | 2011-11-02 | 黄峰 | Hydroelectric end connecting device for rotating target |
| CN102230161B (en) * | 2011-06-28 | 2012-12-19 | 黄峰 | Hydroelectric end connecting device for rotating target |
| CN104379798B (en) * | 2012-01-13 | 2017-03-01 | 基恩科有限公司 | Vacuum rotating device |
| CN104379798A (en) * | 2012-01-13 | 2015-02-25 | 基恩科有限公司 | In-vacuum rotational device |
| CN102560386A (en) * | 2012-03-14 | 2012-07-11 | 无锡康力电子有限公司 | Rotating cathode mechanism |
| CN104278244A (en) * | 2014-09-29 | 2015-01-14 | 苏州求是真空电子有限公司 | Rotating magnetic field plane cathode |
| CN104532200A (en) * | 2014-12-24 | 2015-04-22 | 四川亚力超膜科技有限公司 | Columnar rotation magnetic control sputtering target |
| CN104532200B (en) * | 2014-12-24 | 2017-05-17 | 四川亚力超膜科技有限公司 | Columnar rotation magnetic control sputtering target |
| CN105821389A (en) * | 2016-05-25 | 2016-08-03 | 东莞南玻工程玻璃有限公司 | Rotating target driving device |
| CN105821388A (en) * | 2016-05-25 | 2016-08-03 | 东莞南玻工程玻璃有限公司 | Magnetron sputtering coating equipment |
| CN105821390A (en) * | 2016-05-25 | 2016-08-03 | 东莞南玻工程玻璃有限公司 | Rotating target hexagonal shaft mechanism |
| CN106595161A (en) * | 2016-10-24 | 2017-04-26 | 杨瑞鹏 | Novel cooling back tube used for PVD rotating target manufacturing |
| WO2020186545A1 (en) * | 2019-03-21 | 2020-09-24 | 北京中百源国际科技创新研究有限公司 | Target |
| CN112011769A (en) * | 2020-08-06 | 2020-12-01 | 深圳市金耀玻璃机械有限公司 | End capable of completely exhausting air in target tube |
| CN112430801A (en) * | 2020-10-27 | 2021-03-02 | 中国石油天然气集团有限公司 | Magnetron sputtering device and magnetron sputtering method for inner wall of steel pipe |
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