CN105856441A - Technology for determining C directions of large-size sapphire crystals - Google Patents
Technology for determining C directions of large-size sapphire crystals Download PDFInfo
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- CN105856441A CN105856441A CN201610417360.0A CN201610417360A CN105856441A CN 105856441 A CN105856441 A CN 105856441A CN 201610417360 A CN201610417360 A CN 201610417360A CN 105856441 A CN105856441 A CN 105856441A
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- polyvinyl alcohol
- polarization film
- sapphire crystal
- face glass
- molecular polyvinyl
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0058—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The invention relates to a technology for determining C directions of large-size sapphire crystals. The technology includes steps of (1), cleaning the surfaces of the sapphire crystals (by the aid of surface cleansers) and removing oil stain and other pollutants; (2), arranging the cleaned large-size sapphire crystals at positions separated from the fronts of plane-polarization lamp boxes by distances of 200-400 mm; (3), smearing volatile vegetable oil on the surface of each large-size sapphire crystal along the same direction; (4), allowing workers to wear polarization protection eyepieces; (5), observing the large-size sapphire crystals from positions separated from the front of the large-size sapphire crystals by distances of 50-70 mm; (6), observing the sapphire crystals and simultaneously turning the sapphire crystals; (7), turning the sapphire crystals until clear Maltese cross images appear; (8), marking the vertical center lines of Maltese cross by the aid of marking pens. The vertical center lines of the Maltese cross are C axes of the sapphire crystals. The technology has the advantages of speediness, accuracy and zero size and weight limit.
Description
Technical field
The present invention relates to a kind of sapphire crystal directional process field, be specifically related to the C of a kind of large size sapphire crystal to directional technology.
Technical background
Sapphire crystal is widely used in high-brightness LED backing material, various optical component, various window material.Current sapphire crystal orientation relies primarily on X-ray orientation device and realizes, but X-ray orientation device requires that sapphire crystal surface roughness is not more than Ra12.5, the large size sapphire crystal surface roughness of current various methods growth does not reaches the requirement of X-ray orientation device, secondary mechanical is needed to process, the orientation cycle is long, work efficiency is low, and X-ray orientation device is to sapphire crystal size and limited mass system.
Summary of the invention
It is an object of the invention to overcome existing technical disadvantages, it is provided that a kind of quickly, accurately, without the C of size and the large size sapphire crystal of weight restriction to directional technology.
The purpose of the present invention is realized by following technical proposals:
The C of a kind of large size sapphire crystal, to directional technology, comprises the steps:
(1) (surface cleaner) cleaning sapphire crystal surface, goes to degrease and other pollutant；
(2) large size sapphire crystal after cleaning is placed at linearly polarized light lamp box front 200-400mm；
(3) large size sapphire crystal surface is spread upon in the same direction with volatile vegetable oil；
(4) polarized light protective ocular on band；
(5) observe at 50-70mm before large size sapphire crystal；
(6) observation limit in limit rotates sapphire crystal；
(7) until Maltese cross (Maltese cross) image clearly occurs in sight line；
(8) mark the vertical center line of Maltese cross (Maltese cross) with marking pen, this vertical center line is the C axle of sapphire crystal.
nullThe C of above-mentioned a kind of large size sapphire crystal is to directional technology，Wherein，Described linearly polarized light lamp box includes rare-earth trichromatic fluorescent lamp、High-molecular polyvinyl alcohol polarization film、Cover plate panel and Bright Source Protection frame，Described Bright Source Protection frame includes gripper shoe and four side plates，The surrounding being fixed on gripper shoe that four side plates are vertical，Be positioned at be parallel to each other on the side plate at top be provided with high-molecular polyvinyl alcohol polarization film passage and face glass passage，High-molecular polyvinyl alcohol polarization film passage is positioned at inside face glass passage，Be parallel to each other respectively on its excess-three side plate is provided with high-molecular polyvinyl alcohol polarization film draw-in groove and face glass draw-in groove，High-molecular polyvinyl alcohol polarization film passage、High-molecular polyvinyl alcohol polarization film draw-in groove joins end to end，Face glass passage、Face glass draw-in groove joins end to end，Described high-molecular polyvinyl alcohol polarization film is fixed in thin film fixed frame，Thin film fixed frame is fixed on Bright Source Protection frame through high-molecular polyvinyl alcohol polarization film passage is plug-type，Face glass is fixed in panel fixed frame，Panel fixed frame is fixed on Bright Source Protection frame through face glass passage is plug-type，The quantity of described rare-earth trichromatic fluorescent lamp is at least 3，What rare-earth trichromatic fluorescent lamp was parallel to each other fixes on the supporting plate，The adjacent distance between two rare-earth trichromatic fluorescent lamps is equal，Distance between described high-molecular polyvinyl alcohol polarization film and rare-earth trichromatic fluorescent lamp is 10-20mm，Distance between face glass and high-molecular polyvinyl alcohol polarization film is 0-5mm.
The invention have the benefit that
The surface roughness of sapphire crystal and the size of sapphire crystal and weight are not particularly limited by the orientation method of the present invention, can quickly, accurately orient the C axle of the large size sapphire crystal of diameter >=360mm, highly >=290mm, weight >=100kg, and the orienting device used has, and simple in construction, cost of manufacture be low, the advantage of processing ease.
Accompanying drawing explanation
Fig. 1 is Maltese cross (Maltese cross) schematic diagram of the present invention.
Fig. 2 is linearly polarized light lamp box explosive view of the present invention.
Detailed description of the invention
nullThe linearly polarized light lamp box related in following embodiment includes rare-earth trichromatic fluorescent lamp 1、High-molecular polyvinyl alcohol polarization film 2、Cover plate panel 3 and Bright Source Protection frame 4，Described Bright Source Protection frame 4 includes gripper shoe 5 and four side plates 6，The surrounding being fixed on gripper shoe that four side plates are vertical，Be positioned at be parallel to each other on the side plate at top be provided with high-molecular polyvinyl alcohol polarization film passage 7 and face glass passage 8，High-molecular polyvinyl alcohol polarization film passage is positioned at inside face glass passage，Be parallel to each other respectively on its excess-three side plate is provided with high-molecular polyvinyl alcohol polarization film draw-in groove 9 and face glass draw-in groove 10，High-molecular polyvinyl alcohol polarization film passage、High-molecular polyvinyl alcohol polarization film draw-in groove joins end to end，Face glass passage、Face glass draw-in groove joins end to end，Described high-molecular polyvinyl alcohol polarization film is fixed in thin film fixed frame 11，Thin film fixed frame is fixed on Bright Source Protection frame through high-molecular polyvinyl alcohol polarization film passage is plug-type，Face glass is fixed in panel fixed frame 12，Panel fixed frame is fixed on Bright Source Protection frame through face glass passage is plug-type，The quantity of described rare-earth trichromatic fluorescent lamp is at least 3，What rare-earth trichromatic fluorescent lamp was parallel to each other fixes on the supporting plate，The adjacent distance between two rare-earth trichromatic fluorescent lamps is equal，Distance between described high-molecular polyvinyl alcohol polarization film and rare-earth trichromatic fluorescent lamp is 10-20mm，Distance between face glass and high-molecular polyvinyl alcohol polarization film is 0-5mm.
Embodiment one
The C of a kind of large size sapphire crystal, to directional technology, comprises the steps:
(1) clean sapphire crystal surface with anhydrous alcohol, go to degrease and other pollutant；
(2) by a diameter of 450mm, height is 296mm, and weight is that the large size sapphire crystal of 170kg is placed on before linearly polarized light lamp box at 400mm；
(3) sapphire crystal surface is spread upon in the same direction with the wintergreen oil that index of refraction is 1.535～1.538；
(4) polarized light protective ocular on band；
(5) observe at 50mm before sapphire crystal；
(6) observation limit in limit rotates sapphire crystal；
(7) until Maltese cross (Maltese cross) image clearly occurs in sight line.
(8) mark the vertical center line of Maltese cross (Maltese cross) with marking pen, this vertical center line is the C axle of sapphire crystal.
The quantity of the rare-earth trichromatic fluorescent lamp of linearly polarized light lamp box is 3, distance between high-molecular polyvinyl alcohol polarization film and rare-earth trichromatic fluorescent lamp is 10mm, distance between face glass and high-molecular polyvinyl alcohol polarization film is 2mm, the thickness of high-molecular polyvinyl alcohol polarization film is 2.5mm, and the thickness of face glass is 2.5mm.
Embodiment two
The C of a kind of large size sapphire crystal, to directional technology, comprises the steps:
(1) clean sapphire crystal surface with surface cleaner, go to degrease and other pollutant；
(2) by a diameter of 535mm, height is 307mm, and weight is that the large size sapphire crystal of 193kg is placed on before linearly polarized light lamp box at 300mm；
(3) sapphire crystal surface is spread upon in the same direction with volatile vegetable oil；
(4) polarized light protective ocular on band；
(5) observe at 60mm before sapphire crystal；
(6) observation limit in limit rotates sapphire crystal；
(7) until Maltese cross (Maltese cross) image clearly occurs in sight line.
(8) mark the vertical center line of Maltese cross (Maltese cross) with marking pen, this vertical center line is the C axle of sapphire crystal.
The constituent of described surface cleaner is counted as follows by weight: ethanol 8 parts, glycerol 3 parts, tripropylene glycol butyl ether 0.5 part, sodium citrate 2 parts, sodium tripolyphosphate 4 parts, coconut oil 2 parts, butyl epoxy stearate 2.5 parts, 15 parts of water；By above-mentioned each component at a temperature of 45 DEG C mix homogeneously surface cleaner；
The constituent of described volatile vegetable oil is counted as follows by weight: Succinum powder 4 parts, Radix Angelicae Sinensis oil 6 parts, laurel fat 1 part, soybean oil 0.5 part, wintergreen oil 5 parts, 2,4-trimethyl-1,3-pentanediol mono isobutyrate 6 parts；By above-mentioned each component at a temperature of 300 DEG C mix homogeneously volatile vegetable oil；
The quantity of the rare-earth trichromatic fluorescent lamp of linearly polarized light lamp box is 4, distance between high-molecular polyvinyl alcohol polarization film and rare-earth trichromatic fluorescent lamp is 12mm, distance between face glass and high-molecular polyvinyl alcohol polarization film is 0mm, the thickness of high-molecular polyvinyl alcohol polarization film is 3 mm, and the thickness of face glass is 5mm.
Embodiment three
The C of a kind of large size sapphire crystal, to directional technology, comprises the steps:
(1) clean sapphire crystal surface with surface cleaner, go to degrease and other pollutant；
(2) by a diameter of 600mm, height is 350mm, and weight is that the large size sapphire crystal of 215kg is placed on before linearly polarized light lamp box at 350mm；
(3) sapphire crystal surface is spread upon in the same direction with volatile vegetable oil；
(4) polarized light protective ocular on band；
(5) observe at 65mm before sapphire crystal；
(6) observation limit in limit rotates sapphire crystal；
(7) until Maltese cross (Maltese cross) image clearly occurs in sight line.
(8) mark the vertical center line of Maltese cross (Maltese cross) with marking pen, this vertical center line is the C axle of sapphire crystal.
The constituent of described surface cleaner is counted as follows by weight: ether 4 parts, tripropylene glycol butyl ether 2 parts, sodium citrate 3 parts, sodium tripolyphosphate 4 parts, coconut oil 3 parts, butyl epoxy stearate 2 parts, 12 parts of water；By above-mentioned each component at a temperature of 50 DEG C mix homogeneously surface cleaner；
The constituent of described volatile vegetable oil is counted as follows by weight: Succinum powder 2 parts, Radix Angelicae Sinensis oil 3 parts, laurel fat 3 parts, soybean oil 1 part, 2,4-trimethyl-1,3-pentanediol mono isobutyrate 5 parts；By above-mentioned each component at a temperature of 320 DEG C mix homogeneously volatile vegetable oil；
The quantity of the rare-earth trichromatic fluorescent lamp of linearly polarized light lamp box is 6, distance between high-molecular polyvinyl alcohol polarization film and rare-earth trichromatic fluorescent lamp is 15mm, distance between face glass and high-molecular polyvinyl alcohol polarization film is 1mm, the thickness of high-molecular polyvinyl alcohol polarization film is 2 mm, and the thickness of face glass is 3mm.
The present invention uses specifically configured surface cleaner, it is possible to effectively cleans the dirt of the various composition of wafer, will not injure again wafer surface, safe and reliable；Meanwhile, using specifically configured volatile vegetable oil, volatility is good, safe without toxic side effect；Quantity according to rare-earth trichromatic fluorescent lamp adjusts the distance between high-molecular polyvinyl alcohol polarization film and rare-earth trichromatic fluorescent lamp, it is possible to select according to various sizes of crystal, more rationally.
It should be understood that although above-described embodiment is described in detail the structure of the present invention; but the present invention is not limited to above-described embodiment; every those skilled in the art from above-described embodiment without creative work just it is contemplated that replacing structure, belong to protection scope of the present invention.
Claims (2)
1. the C of large size sapphire crystal is to a directional technology, it is characterized by, comprises the steps:
(1) cleaning sapphire crystal surface, goes to degrease and other pollutant；
(2) large size sapphire crystal after cleaning is placed at linearly polarized light lamp box front 200-400mm；
(3) large size sapphire crystal surface is spread upon in the same direction with volatile vegetable oil；
(4) polarized light protective ocular on band；
(5) observe at 50-70mm before large size sapphire crystal；
(6) observation limit in limit rotates sapphire crystal；
(7) until Maltese cross (Maltese clearly occurs in sight line
Cross) image；
(8) Maltese cross (Maltese is marked with marking pen
Cross) vertical center line, this vertical center line is the C axle of sapphire crystal.
nullThe C of a kind of large size sapphire crystal the most as claimed in claim 1 is to directional technology，It is characterized by，Described linearly polarized light lamp box includes rare-earth trichromatic fluorescent lamp、High-molecular polyvinyl alcohol polarization film、Cover plate panel and Bright Source Protection frame，Described Bright Source Protection frame includes gripper shoe and four side plates，The surrounding being fixed on gripper shoe that four side plates are vertical，Be positioned at be parallel to each other on the side plate at top be provided with high-molecular polyvinyl alcohol polarization film passage and face glass passage，High-molecular polyvinyl alcohol polarization film passage is positioned at inside face glass passage，Be parallel to each other respectively on its excess-three side plate is provided with high-molecular polyvinyl alcohol polarization film draw-in groove and face glass draw-in groove，High-molecular polyvinyl alcohol polarization film passage、High-molecular polyvinyl alcohol polarization film draw-in groove joins end to end，Face glass passage、Face glass draw-in groove joins end to end，Described high-molecular polyvinyl alcohol polarization film is fixed in thin film fixed frame，Thin film fixed frame is fixed on Bright Source Protection frame through high-molecular polyvinyl alcohol polarization film passage is plug-type，Face glass is fixed in panel fixed frame，Panel fixed frame is fixed on Bright Source Protection frame through face glass passage is plug-type，The quantity of described rare-earth trichromatic fluorescent lamp is at least 3，What rare-earth trichromatic fluorescent lamp was parallel to each other fixes on the supporting plate，The adjacent distance between two rare-earth trichromatic fluorescent lamps is equal，Distance between described high-molecular polyvinyl alcohol polarization film and rare-earth trichromatic fluorescent lamp is 10-20mm，Distance between face glass and high-molecular polyvinyl alcohol polarization film is 0-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610417360.0A CN105856441A (en) | 2016-06-13 | 2016-06-13 | Technology for determining C directions of large-size sapphire crystals |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610417360.0A CN105856441A (en) | 2016-06-13 | 2016-06-13 | Technology for determining C directions of large-size sapphire crystals |
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| CN105856441A true CN105856441A (en) | 2016-08-17 |
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| CN201610417360.0A Pending CN105856441A (en) | 2016-06-13 | 2016-06-13 | Technology for determining C directions of large-size sapphire crystals |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371630A (en) * | 2011-11-02 | 2012-03-14 | 江苏吉星新材料有限公司 | Orientation method of large-size sapphire crystal |
| CN202357297U (en) * | 2011-11-02 | 2012-08-01 | 江苏吉星新材料有限公司 | Orienting device of large-sized sapphire crystal |
| CN203923439U (en) * | 2014-04-29 | 2014-11-05 | 三明市港乐水晶电子有限公司 | A kind of optics crystal growth confinement plate |
| WO2015021002A1 (en) * | 2013-08-05 | 2015-02-12 | Gtat Corporation | A method of analyzing a sapphire article |
| WO2015172014A1 (en) * | 2014-05-09 | 2015-11-12 | Saint-Gobain Ceramics & Plastics, Inc. | High quality sapphire substrates and method of making said sapphire substrates |
-
2016
- 2016-06-13 CN CN201610417360.0A patent/CN105856441A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371630A (en) * | 2011-11-02 | 2012-03-14 | 江苏吉星新材料有限公司 | Orientation method of large-size sapphire crystal |
| CN202357297U (en) * | 2011-11-02 | 2012-08-01 | 江苏吉星新材料有限公司 | Orienting device of large-sized sapphire crystal |
| WO2015021002A1 (en) * | 2013-08-05 | 2015-02-12 | Gtat Corporation | A method of analyzing a sapphire article |
| CN203923439U (en) * | 2014-04-29 | 2014-11-05 | 三明市港乐水晶电子有限公司 | A kind of optics crystal growth confinement plate |
| WO2015172014A1 (en) * | 2014-05-09 | 2015-11-12 | Saint-Gobain Ceramics & Plastics, Inc. | High quality sapphire substrates and method of making said sapphire substrates |
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Application publication date: 20160817 |
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