CN111446617B - High efficiency multistation laser apparatus for producing - Google Patents
High efficiency multistation laser apparatus for producing Download PDFInfo
- Publication number
- CN111446617B CN111446617B CN202010412529.XA CN202010412529A CN111446617B CN 111446617 B CN111446617 B CN 111446617B CN 202010412529 A CN202010412529 A CN 202010412529A CN 111446617 B CN111446617 B CN 111446617B
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- rod
- seats
- pressing
- positioning
- lifting
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- 238000003825 pressing Methods 0.000 claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 4
- 229920001774 Perfluoroether Polymers 0.000 claims description 3
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical compound FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005245 sintering Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
- H01S5/02476—Heat spreaders, i.e. improving heat flow between laser chip and heat dissipating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
The invention relates to a high-efficiency multi-station laser production device which comprises a base and a bracket, wherein a placing groove is formed in the edge of one end of the upper surface of the base, a supporting plate is arranged in the placing groove, a guide rod is arranged at the bottom of the supporting plate, and a first spring is sleeved on the guide rod; the bracket comprises a fixed seat and a lifting plate, and the lifting plate is arranged between the two fixed seats; be equipped with the positioning seat on the lifting seat, positioning seat inner chamber one side is equipped with the fixture block, fixture block one side is equipped with first spacing tooth, fixture block one end is connected with the pull rod, be equipped with the second spring on the pull rod, run through on the positioning seat and be equipped with the pressure pole, the pull rod lower extreme runs through the lifter plate and is equipped with the briquetting, the cover is equipped with the third spring on the pressure pole, the position of briquetting corresponds with the position of standing groove, one side of pressure pole is equipped with the spacing tooth of a plurality of second, the spacing tooth of second meshes with the first spacing tooth on the fixture block, realize the fixture block spacing to the downward movement of pressure pole, need not manual regulation to the dynamics of pressing down the chip, production efficiency has been improved greatly.
Description
Technical Field
The invention belongs to the technical field of laser manufacturing, and particularly relates to a high-efficiency multi-station laser production device.
Background
Currently, lasers have been widely used in the fields of scientific research, industry, medical treatment, military, etc., and the development of technologies and industries in these fields has been greatly promoted. The laser has the characteristics of small volume, high power and the like, and can generate heat during operation, and if the heat is not timely removed, the characteristics of the laser such as power, efficiency, service life and the like can be influenced. Therefore, during the production and manufacture of the laser, the chip needs to be fixed on the heat sink by sintering, so that heat is dissipated by heat conduction. The existing multi-station fixing clamp is simple in structure and cannot well fix a chip, a mode of pressing a block by a screw is generally adopted in the sintering process to press and fix the laser chip, the screw on each clamp needs to be screwed down each time when the laser chip is fixed, the operation is relatively complicated, the pressure of the screw on each clamp to the chip cannot be consistent, if the pressure is overlarge, the chip is easy to crack, if the pressure is too small, a cavity exists between a heat sink and the chip, so that the heat dissipation performance of the chip can be influenced, and the phenomenon of uneven quality of products in the same batch is easy to occur. When the sintered solder is melted, the position of the chip is displaced by only pressing due to the surface tension, so that the stability, the reliability and the yield of the laser are seriously affected.
Disclosure of Invention
Aiming at the problems, the invention discloses a high-efficiency multi-station laser production device which can avoid displacement between a chip and a heat sink during sintering, ensure the uniformity of force application of a pressing sheet to the chip and avoid fracture phenomenon of the chip caused by overlarge local stress of the chip.
The specific technical scheme is as follows:
The utility model provides a high efficiency multistation laser apparatus for producing, includes the base and sets up the support on the base, a plurality of rectangle structure standing grooves have been seted up to base upper surface one end edge arrangement, and the standing groove has all been seted up to base lower surface corresponding every standing groove position, all vertically seted up the guide way on the lateral wall of standing groove, the activity is equipped with the backup pad that is used for placing the laser instrument shell in the standing groove, be equipped with the gib on the backup pad lateral wall, the gib is embedded into the guide way on the standing groove lateral wall respectively, the backup pad bottom is equipped with the guide bar, the cover is equipped with first spring on the guide bar, the lower extreme of guide bar runs through the standing groove bottom and is equipped with the stopper in the standing groove;
The bracket comprises two fixing seats and lifting plates, wherein the two fixing seats are respectively arranged on two sides of the base, sliding grooves are longitudinally formed in the fixing seats, rotating seats are respectively arranged at the upper end and the lower end of the side, away from each other, of the two fixing seats, and an adjusting screw rod is rotatably arranged between the two rotating seats; the lifting plate is horizontally arranged between the two fixed seats, lifting blocks are arranged at two ends of the lifting plate, and pass through the sliding grooves and are in threaded connection with the adjusting screw rod; the lifting seat is provided with a plurality of positioning seats, the positioning seats are of hollow structures, a clamping block is arranged on one side of an inner cavity of the positioning seat, a plurality of first limiting teeth are arranged on one side of the clamping block, one end of the clamping block is connected with a pull rod, a second spring is sleeved on the pull rod, one end of the pull rod horizontally penetrates through one side of the positioning seat, a pressing rod vertically penetrates through the positioning seat, the lower end of the pull rod penetrates through the lifting plate and is provided with a pressing block, a third spring is sleeved on the pressing rod, the upper end and the lower end of the third spring respectively support against the bottom of the support and the top of the pressing block, the position of the pressing block corresponds to the position of the placing groove, a plurality of second limiting teeth are arranged on one side of the pressing rod from bottom to top, and the second limiting teeth are meshed with the first limiting teeth on the clamping block, so that the clamping block can limit downward movement of the pressing rod.
Further, the briquetting includes sleeve shell, clamp plate, locating lever, the sleeve shell is rectangular structure, has all offered movable mouth around the sleeve shell, and the sleeve shell bottom is equipped with the holding groove, the level sets up in the holding groove the clamp plate, the clamp plate bottom is equipped with a plurality of rubber lug, and the clamp plate top is equipped with the connecting rod perpendicularly, the connecting rod upper end runs through the sleeve shell bottom and is equipped with articulated seat in the sleeve shell, is swing joint between connecting rod and the sleeve shell, and the connecting rod passes through articulated seat is spacing, articulated seat quantity 4 and distribute around the connecting rod, every articulated seat distributes articulated one the one end of locating lever, the level runs through on the locating lever and is equipped with the pivot, pivot both ends and sleeve shell inner wall both ends fixed connection, the locating lever other end is equally divided and is passed movable mouth and downward buckling set up.
Further, the tail end of the positioning rod is provided with a rubber soft sleeve.
Furthermore, the rubber bump and the rubber soft sleeve are made of high-temperature-resistant perfluoro ether rubber.
Further, the cross section of the connecting rod is of a rectangular structure.
Further, the size structure of the pressing plate is matched with the size structure of the accommodating groove.
Further, the upper end and the lower end of the adjusting screw rod are provided with adjusting blocks.
The beneficial effects of the invention are as follows:
(1) Compared with the mode of pressing by screwing the bolt, the invention adjusts the height of the lifting plate to a proper position before use, so that the pressure generated by the elastic force of the third spring on the chip reaches the optimal force, when the pressure is fixed, the pull rod is pulled outwards, the pressing rod is pulled downwards lightly, the pressing rod moves downwards under the action of the third spring, the pressing block presses the chip under the restoring acting force of the third spring, and finally, the pressing rod is limited by adopting the cooperation of the second limiting teeth and the first limiting teeth, the pressing force on the chip is not required to be manually adjusted each time, the operation is more convenient and reliable, and the production efficiency is greatly improved.
(2) According to the invention, the pressing block is pressed on the chip through the plurality of rubber bumps at the bottom of the pressing plate, so that the chip breakage phenomenon caused by uneven stress is avoided, the pressing plate and the connecting rod are driven to ascend when the rubber bumps are pressed on the chip, one end of the positioning rod is enabled to limit the periphery of the chip through the rubber soft sleeve under the action of the rotating shaft, the chip is effectively prevented from being displaced in the sintering process, and the sintering quality and the yield of the chip are improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front cross-sectional view of the present invention.
Fig. 3 is an enlarged schematic view of fig. 2 at a.
Fig. 4 is an enlarged schematic view at B in fig. 2.
Description of the reference numerals
Base 1, standing groove 11, guiding groove 111, setting groove 12, backup pad 13, guiding strip 131, guiding rod 132, first spring 133, stopper 134, support 2, fixing base 21, spout 211, rotating base 212, adjusting screw 213, adjusting block 214, lifting plate 22, lifting block 221, positioning base 222, clamping block 2221, first spacing tooth 2222, pull rod 2223, second spring 2224, pressing rod 23, second spacing tooth 231, third spring 232, pressing block 24, casing 241, movable opening 2411, holding groove 2412, pressing plate 242, rubber bump 2421, connecting rod 243, hinge base 2431, positioning rod 244, rotating shaft 2441, rubber soft sleeve 2442, heat sink 3, chip 4, laser package 5.
Detailed Description
In order to make the technical scheme of the invention clearer and more definite, the invention is further described below with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent substitution and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention. The fixed connection mentioned in the invention is a common connection mode in the mechanical field, and the fixed connection can be realized by welding, bolt-nut connection and screw connection.
In the description of the invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1-4, a high-efficiency multi-station laser production device comprises a base 1 and a bracket 2 arranged on the base 1, wherein a plurality of rectangular structure placing grooves 11 are arranged and formed in edges of two ends of the upper surface of the base 1, a placing groove 12 is formed in the lower surface of the base 1 corresponding to each placing groove 11, guide grooves 111 are longitudinally formed in the side walls of the placing grooves 11, a supporting plate 13 for placing a laser tube shell is movably arranged in the placing grooves 11, guide strips 131 are arranged on the side walls of the supporting plate 13, the guide strips 131 are respectively embedded into the guide grooves 111 in the side walls of the placing grooves 11, the placing supporting plate 13 is horizontally displaced in the placing grooves 11, guide rods 132 are arranged at the bottoms of the supporting plate 13, first springs 133 are sleeved on the guide rods 132, and the lower ends of the guide rods 132 penetrate through the bottoms of the placing grooves 11 and are provided with limiting blocks 134 in the placing grooves 12;
The two brackets 2 are two in number, the two brackets 2 comprise two fixed seats 21 and lifting plates 22, the two fixed seats 21 are respectively arranged on two sides of the base 1, sliding grooves 211 are longitudinally formed in the fixed seats 21, rotating seats 212 are respectively arranged at the upper end and the lower end of the side, away from the two fixed seats 21, of each fixed seat, and an adjusting screw 213 is rotatably arranged between the two rotating seats 212; the lifting plate 22 is horizontally arranged between the two fixed seats 21, lifting blocks 221 are arranged at two ends of the lifting plate 22, and the lifting blocks 221 pass through the sliding grooves 211 and are in threaded connection with the adjusting screw rods 213; the lifting seat is provided with a plurality of positioning seats 222, the positioning seats 222 are of hollow structures, one side of the inner cavity of the positioning seats 222 is provided with a clamping block 2221, one side of the clamping block 2221 is provided with a plurality of first limit teeth 2222, one end of the clamping block 2221 is connected with a pull rod 2223, a second spring 2224 is sleeved on the pull rod 2223, one end of the pull rod 2223 horizontally penetrates through one side of the positioning seats 222, the positioning seats 222 vertically penetrate through a pressing rod 23, the lower end of the pull rod 2223 penetrates through the lifting plate 22 and is provided with a pressing block 24, a third spring 232 is sleeved on the pressing rod 23, the upper end and the lower end of the third spring 232 respectively lean against the bottom of the support 2 and the top of the pressing block 24, the third spring 232 in fig. 1 and 2 is in a compressed state, the position of the pressing block 24 corresponds to the position of the placing groove 11, a plurality of second limit teeth 231 are arranged on one side of the pressing rod 23 from bottom to top, and the second limit teeth 231 are meshed with the first limit teeth 2222 on the clamping block 2221, and the downward movement of the pressing rod 2221 is achieved.
Further, the pressing block 24 includes a casing 241, a pressing plate 242, and a positioning rod 244, the casing 241 is in a rectangular structure, movable ports 2411 are all formed around the casing 241, a receiving groove 2412 is formed in the bottom of the casing 241, a rotating shaft 2441 is horizontally disposed in the receiving groove 2412, a plurality of rubber bumps 2421 are disposed at the bottom of the pressing plate 242, a connecting rod 243 is vertically disposed at the top of the pressing plate 242, the upper end of the connecting rod 243 penetrates through the bottom of the casing 241 and is provided with a hinge seat 2431 in the casing 241, the connecting rod 243 is movably connected with the casing 241, the connecting rod 243 is limited by the hinge seats 2431, the number of the hinge seats 2431 is 4 and is distributed around the connecting rod 243, each hinge seat 2431 is hinged with one end of the positioning rod 244, the positioning rod 244 horizontally penetrates through a rotating shaft 2441, two ends of the rotating shaft 2441 are fixedly connected with two ends of the inner wall of the casing 241, and the other ends of the positioning rod 244 respectively penetrate through the movable ports 2411 and are bent downwards.
Further, the end of the positioning rod 244 is provided with a rubber soft sleeve 2442, so that damage caused by contact between the positioning rod 244 and the chip 4 is avoided.
Further, the rubber bump 2421 and the rubber soft sleeve 2442 are made of high temperature resistant perfluoroether rubber.
Further, the cross section of the connecting rod 243 is rectangular, preventing the connecting rod 243 and the pressing plate 242 from rotating.
Further, the size and structure of the pressing plate 242 is adapted to the size and structure of the accommodating groove 2412, and the pressing plate 242 is displaced when pressed.
Further, the upper end and the lower end of the adjusting screw rod 213 are provided with adjusting blocks 214, and the adjusting screw rod 213 is adjusted by rotating the adjusting blocks 214.
Working principle:
Debugging is carried out before the use, and the height of the lifting plate is adjusted to a proper position, so that the elastic force of the third spring can enable the pressure generated by the pressing block on the chip to reach the optimal strength; when fixed, pull the pull rod outwards earlier, lightly pull the pressure pole again, press the pole and move downwards under the effect of third spring, and make the briquetting press the chip under the restoring effort of third spring, and it is spacing to pressing the pole to press through spacing tooth of second and the cooperation of first spacing tooth, the clamp plate bottom in the briquetting adopts a plurality of rubber lug to press on the chip, avoid leading to the chip fracture because of the atress is uneven, drive clamp plate and connecting rod to rise when the rubber lug presses on the chip, and make the one end of locating lever rotate under the effect of pivot, at last limit the chip all around through the soft cover of rubber, prevent that the chip from taking place the displacement.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (2)
1. The utility model provides a high efficiency multistation laser apparatus for producing, its characterized in that, including base (1) and support (2) of setting on base (1), a plurality of standing grooves (11) have been seted up to base (1) upper surface one end edge arrangement, and standing groove (12) have all been seted up to base (1) lower surface corresponding every standing groove (11) position, guiding groove (111) have all been vertically seted up on the lateral wall of standing groove (11), be equipped with backup pad (13) in the activity in standing groove (11), be equipped with gib block (131) on backup pad (13) lateral wall, gib block (131) are embedded into in guiding groove (111) on standing groove (11) lateral wall respectively, backup pad (13) bottom is equipped with guide bar (132), the cover is equipped with first spring (133) on guide bar (132), the lower extreme of guide bar (132) runs through standing groove (11) bottom and is equipped with stopper (134) in standing groove (12);
The support (2) comprises two fixing seats (21) and lifting plates (22), wherein sliding grooves (211) are longitudinally formed in the two fixing seats (21), rotating seats (212) are respectively arranged at the upper end and the lower end of the side, away from each other, of the two fixing seats (21), and an adjusting screw rod (213) is rotatably arranged between the two rotating seats (212); the lifting plate (22) is horizontally arranged between the two fixed seats (21), lifting blocks (221) are arranged at two ends of the lifting plate (22), and the lifting blocks (221) penetrate through the sliding grooves (211) and are in threaded connection with the adjusting screw rods (213); the lifting device comprises a lifting plate (22), and is characterized in that a plurality of positioning seats (222) are arranged on the lifting plate (22), the positioning seats (222) are of hollow structures, a clamping block (2221) is arranged on one side of an inner cavity of each positioning seat (222), a plurality of first limit teeth (2222) are arranged on one side of each clamping block (2221), one end of each clamping block (2221) is connected with a pull rod (2223), a second spring (2224) is sleeved on each pull rod (2223), one end of each pull rod (2223) horizontally penetrates through one side of each positioning seat (222), a pressing rod (23) vertically penetrates through each positioning seat (222), the lower end of each pull rod (2223) penetrates through the lifting plate (22) and is provided with a pressing block (24), a third spring (232) is sleeved on each pressing rod (23), the upper end and the lower end of each third spring (232) respectively abuts against the bottom of each bracket (2) and the top of each pressing block (24), a plurality of second limit teeth (231) are arranged on one side of each pressing rod (23) from bottom to top, and the second limit teeth (231) are meshed with the corresponding first limit teeth (2221) to the corresponding first limit teeth (2221);
The pressing block (24) comprises a casing (241), a pressing plate (242) and a positioning rod (244), the casing (241) is of a rectangular structure, movable ports (2411) are formed in the periphery of the casing (241), accommodating grooves (2412) are formed in the bottoms of the casing (241), the pressing plate (242) is horizontally arranged in the accommodating grooves (2412), a plurality of rubber bumps (2421) are arranged at the bottoms of the pressing plate (242), a connecting rod (243) is vertically arranged at the top of the pressing plate (242), the upper end of the connecting rod (243) penetrates through the bottom of the casing (241) and is provided with a hinge seat (2431) in the casing (241), the connecting rod (243) is movably connected with the casing (241), the connecting rod (243) is limited by the hinge seats (2431), the number of the hinge seats (2431) is 4 and is distributed around the connecting rod (243), one end of each hinge seat (2431) is hinged with one end of the positioning rod (244), a rotating shaft (2441) is horizontally arranged in a penetrating mode, the inner wall of the rotating shaft (2441) is fixedly connected with the two ends (241) and penetrates through the two ends of the corresponding positioning rod (2411) respectively; the tail end of the positioning rod (244) is provided with a rubber soft sleeve; the rubber bump (2421) and the rubber soft sleeve (2442) are made of high-temperature-resistant perfluoroether rubber; the cross section of the connecting rod (243) is of a rectangular structure; the size and structure of the pressing plate (242) are matched with the size and structure of the accommodating groove (2412).
2. A high efficiency multi-station laser production apparatus as claimed in claim 1, wherein the adjusting screw (213) has adjusting blocks (214) at its upper and lower ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412529.XA CN111446617B (en) | 2020-05-15 | 2020-05-15 | High efficiency multistation laser apparatus for producing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412529.XA CN111446617B (en) | 2020-05-15 | 2020-05-15 | High efficiency multistation laser apparatus for producing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111446617A CN111446617A (en) | 2020-07-24 |
| CN111446617B true CN111446617B (en) | 2024-05-14 |
Family
ID=71653826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010412529.XA Active CN111446617B (en) | 2020-05-15 | 2020-05-15 | High efficiency multistation laser apparatus for producing |
Country Status (1)
| Country | Link |
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| CN (1) | CN111446617B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040015373A (en) * | 1999-08-04 | 2004-02-18 | 가부시키가이샤 히타치세이사쿠쇼 | Laser Module, Optical Head Comprising the Same, and Optical Information Recording/Reproducing Device |
| CN104409964A (en) * | 2014-12-03 | 2015-03-11 | 山东华光光电子有限公司 | Semiconductor laser sintering clamp and sintering method thereof |
| CN105896307A (en) * | 2016-04-29 | 2016-08-24 | 山东华光光电子股份有限公司 | Self-aligning sintering clamp and method for semiconductor laser chip |
| CN207705566U (en) * | 2017-11-13 | 2018-08-07 | 石家庄麦特达电子科技有限公司 | Semiconductor laser chip packaging and positioning device |
| CN212517884U (en) * | 2020-05-15 | 2021-02-09 | 江苏天元激光科技有限公司 | High efficiency multistation laser apparatus for producing |
-
2020
- 2020-05-15 CN CN202010412529.XA patent/CN111446617B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040015373A (en) * | 1999-08-04 | 2004-02-18 | 가부시키가이샤 히타치세이사쿠쇼 | Laser Module, Optical Head Comprising the Same, and Optical Information Recording/Reproducing Device |
| CN104409964A (en) * | 2014-12-03 | 2015-03-11 | 山东华光光电子有限公司 | Semiconductor laser sintering clamp and sintering method thereof |
| CN105896307A (en) * | 2016-04-29 | 2016-08-24 | 山东华光光电子股份有限公司 | Self-aligning sintering clamp and method for semiconductor laser chip |
| CN207705566U (en) * | 2017-11-13 | 2018-08-07 | 石家庄麦特达电子科技有限公司 | Semiconductor laser chip packaging and positioning device |
| CN212517884U (en) * | 2020-05-15 | 2021-02-09 | 江苏天元激光科技有限公司 | High efficiency multistation laser apparatus for producing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111446617A (en) | 2020-07-24 |
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| CB02 | Change of applicant information |
Country or region after: China Address after: Entrepreneurship Service Center, High-tech Zone, No. 99, Zhulin Road, Danyang City, Zhenjiang City, Jiangsu Province 212300 Applicant after: Jiangsu Skyera Laser Technology Co.,Ltd. Address before: 212300 No.8, high tech industrial concentration zone, Danyang City, Zhenjiang City, Jiangsu Province Applicant before: JIANGSU SKYERALASER TECHNOLOGY CO.,LTD. Country or region before: China |
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