WO2005112106A1 - ウェハ保管容器 - Google Patents
ウェハ保管容器 Download PDFInfo
- Publication number
- WO2005112106A1 WO2005112106A1 PCT/JP2005/005196 JP2005005196W WO2005112106A1 WO 2005112106 A1 WO2005112106 A1 WO 2005112106A1 JP 2005005196 W JP2005005196 W JP 2005005196W WO 2005112106 A1 WO2005112106 A1 WO 2005112106A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wafer
- storage container
- back surface
- surface protection
- particles
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/673—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/6735—Closed carriers
- H01L21/67353—Closed carriers specially adapted for a single substrate
Definitions
- the present invention relates to a wafer storage container for storing semiconductor wafers one by one, and more particularly to a technology for reducing particles adhering to the surface of a semiconductor wafer during storage.
- semiconductor wafers are stored or transported while being accommodated one by one in a wafer storage container because it is necessary to keep their surfaces clean.
- FIG. 6 is a perspective view showing an outline of a storage container for semiconductor wafers conventionally used
- FIG. 7 is a cross-sectional view thereof.
- the wafer storage container 10 is provided between a wafer holding member 11 having a dome-shaped recess 11 a capable of holding a wafer W, a lid member 12, a wafer W and the lid member 12. And a pressing member 13 disposed on the wafer holding member 11 having a dome-shaped recess 11 a capable of holding a wafer W, a lid member 12, a wafer W and the lid member 12. And a pressing member 13 disposed on the wafer holding member 11 having a dome-shaped recess 11 a capable of holding a wafer W, a lid member 12, a wafer W and the lid member 12. And a pressing member 13 disposed on the wafer holding member 11 having a dome-shaped recess 11 a capable of holding a wafer W, a lid member 12, a wafer W and the lid member 12. And a pressing member 13 disposed on the wafer holding member 11 having a dome-shaped recess 11 a capable of holding a wafer W, a lid member 12, a wafer W and the lid
- the wafer accommodating member 11 and the lid member 12 are made of, for example, polypropylene, and the wafer accommodating member 11 and the lid member 12 are engaged to seal the wafer accommodating portion.
- the semiconductor wafer W is disposed in the dome shaped recess 11a of the wafer holding member 11 with the wafer surface W1 directed downward, and is held in contact with the dome shaped recess 11a at the wafer peripheral portion. It is possible to prevent particles from coming in contact with members of the
- the pressing member 13 has a plurality of legs 13b ejected outward from the central portion 13a, and the central portion 13a and the legs 13b are formed to be entirely curved, and the central portion 13a and the legs The cross section across 13 b is arcuate. Further, when the displacement between the central portion 13a and the tip of the leg portion 13b engages the lid member 12 with the wafer accommodating member 11, the pressing member 13 is between the wafer back surface W2 and the inner wall surface 12a of the lid member 12. It is shaped to be larger than the height of the space to be formed.
- the central portion 13a is pushed by the lid member 12 to press the peripheral portion of the wafer back surface W2 with the tip of the leg 13b.
- the semiconductor wafer is accommodated in the wafer storage container 10 having the above-described structure, but the lid member 12 and the wafer accommodating member 11 are sealed by using a sealing member or the like as in the case of handling, easy cleaning, etc. As it is not a re, it is not possible to completely avoid the entry of particles from the engagement part. In addition, particles may remain in the space in the wafer storage container or particles may be newly generated due to deterioration of the wafer storage container 10 itself.
- a wafer storage container containing wafers is packaged in a laminate bag, and the interior of the laminate bag is evacuated and filled with an inert gas, and the laminate bag is sealed to block contact with the outside air, Prevents the particles from entering the wafer storage container.
- a wafer storage container containing a semiconductor wafer is placed in a laminate bag (for example, an aluminum laminate bag) having high gas barrier properties, the laminate bag is placed in a vacuum chamber, and the pressure in the chamber is reduced. Then, an inert gas such as nitrogen is introduced into the chamber 1 and the mouth of the laminate bag is thermocompressed by a heater in the chamber 1 to seal the laminate bag.
- Patent Document 1 Japanese Examined Patent Publication No. 48-28953
- the wafer storage container is When packing with a laminate bag, there is a possibility that particles may enter.
- the wafer storage container is placed in the vacuum chamber 1, the pressure is reduced by a vacuum pump, and a considerable amount of air flow occurs when introducing an inert gas into the chamber. It is conceivable that particles enter the wafer storage container from the engagement portion of the wafer holding member 11.
- the semiconductor wafer since the semiconductor wafer is usually provided with an orientation flat at its peripheral portion and is not completely circular, particles entering into the wafer storage container are the semiconductor wafer and the dome-shaped recess of the wafer container. It may wrap around the surface of the semiconductor wafer from the gap and adhere to the wafer surface. In such a case, the wafer storage container force is also If an epitaxial growth or the like is performed on the surface of the semiconductor wafer as it is, abnormal growth or the like may occur. Therefore, there is a problem that the process becomes complicated because it is necessary to clean the wafer surface as a pre-process of the epitaxial growth.
- the present invention relates to a wafer storage container for storing semiconductor wafers one by one, and it is an object of the present invention to provide a technique capable of effectively reducing the adhesion of particles to the surface of a semiconductor wafer during storage.
- the present invention has been made to solve the above problems, and is a wafer storage container for storing wafers one by one, which has a dome shape that can be held in contact with the peripheral portion of the wafer.
- the dome-shaped concave portion is provided with a wafer back surface protection member in close contact with the entire back surface of the wafer placed with its front surface facing.
- the semiconductor wafer when the semiconductor wafer is accommodated in a wafer storage container, and the storage container is packaged in a laminate bag and the inside of the bag is replaced with an inert gas, a flow of air is generated and particles are stored in the wafer storage container. Since particles are captured by the wafer back surface protection member even if they enter, particles do not adhere to the back surface of the semiconductor wafer.
- the wafer back surface protection member in substantially the same shape as the opening of the dome-like recess of the wafer housing member, the gap force generated at the position of the orientation flat does not get around the wafer front side. Particles can also stick to the surface.
- a pressing member for example, it is possible to use a member having an arcuate cross-sectional shape or a member having an elastic body sandwiched between a top surface and a bottom surface. At this time, press The portion pressed by the member may be the entire surface of the back surface protection member or a part of the peripheral portion or the like.
- the wafer can be fixed to the wafer holding member, and the adhesion between the wafer back surface and the wafer back surface protection member can be enhanced.
- the function as a pressing member is pressed by the lid member to press the wafer against the wafer housing portion.
- this can be realized by providing an elastic member such as a panel on the surface opposite to the surface of the wafer back surface protection member in close contact with the wafer.
- a wafer surface protection member is disposed between the wafer and the wafer accommodating member, in close contact with the dome-like recess, and in contact with the wafer peripheral portion.
- the front surface side of the semiconductor wafer holds the wafer peripheral portion by the dome-like concave portion of the wafer housing member.
- the wafer surface is open. However, for this reason, a space larger than the wafer back side on which the pressing member is usually inserted is generated on the front side of the semiconductor wafer, and particles are easily left. Therefore, by providing a wafer surface protection member, the space formed between the semiconductor wafer and the dome-shaped recess is made smaller.
- the wafer back surface protecting member and the wafer surface protecting member are formed of a material that is less likely to generate particles such as polyethylene, polypropylene, polyester, or vinyl chloride. As a result, it is possible to avoid that the protective member itself generates force particles and adheres to the semiconductor wafer.
- the wafer back surface protecting member and the wafer surface protecting member are formed of a material with a small amount of released gas, such as a fluorine resin (for example, PTFE).
- a fluorine resin for example, PTFE
- the semiconductor device manufacturer can take out the wafer storage container power semiconductor wafer and perform epitaxial growth on the surface of the semiconductor wafer as it is, so that the wafer surface can be cleaned as a step before epitaxial growth. It has the effect of being able to improve productivity, which eliminates the need for processing.
- FIG. 1 is a perspective view schematically showing a storage container of a semiconductor wafer according to a first embodiment.
- FIG. 2 is a cross-sectional view of the storage container of the semiconductor wafer according to the first embodiment.
- FIG. 3 A perspective view showing an outline of a storage container for semiconductor wafers according to a second embodiment.
- FIG. 4 is a cross-sectional view of a storage container of semiconductor wafers according to a second embodiment.
- FIG. 5 This is an example of a wafer back surface protecting member having the function of a pressing member.
- FIG. 6 is a perspective view showing an outline of a conventional wafer storage container.
- FIG. 7 is a cross-sectional view of a conventional wafer storage container.
- Wafer backside protection sheet Wafer backside protection member
- Wafer Surface Protective Sheet (Wafer Surface Protective Member)
- FIG. 1 is a perspective view showing an outline of a storage container for semiconductor wafers according to the first embodiment. 2 is its sectional view.
- the wafer storage container 10 is disposed between a wafer holding member 11 having a dome-like recess 11a capable of holding the wafer W, a lid member 12, the wafer W and the lid member 12. And a pressing member 13. Furthermore, in the present embodiment, when the wafer front surface W1 is disposed toward the dome-shaped recess 11a, the wafer back surface protection member is disposed between the wafer W and the pressing member 13 and in close contact with the entire wafer back surface W2.
- the wafer back surface protection sheet 14 is provided.
- the wafer accommodating member 11 and the lid member 12 are formed of, for example, polypropylene, and the wafer accommodating member 11 and the lid member 12 are engaged to seal the wafer accommodating portion.
- the semiconductor wafer W is disposed in the dome shaped recess 11a of the wafer holding member 11 with the wafer surface W1 directed downward, and held in contact with the dome shaped recess 11a at the wafer peripheral portion.
- Wafer back surface protective sheet 14 is made of a fluorine resin film with a thickness of 100 ⁇ m, and is molded into substantially the same shape as the opening of dome-shaped recess 11 a of the wafer storage member. When the two are brought into close contact with each other, the entire surface of the opening of the dome-shaped recess 11a is covered. That is, the gap with the wafer accommodating member 11 generated by the orientation flat provided on the semiconductor wafer W is also covered.
- the wafer back surface protection sheet 14 is formed of a fluorine-based resin film, it is possible to prevent the particles from adhering to the semiconductor wafer W where generation of particles from the protection sheet 14 itself is small. Further, since the fluorine-based resin film has a small amount of released gas, it is possible to prevent the semiconductor wafer W from being contaminated by the outgas from the wafer back surface protective sheet 14 and the quality of the wafer being degraded.
- the pressing member 13 has a plurality of legs 13b ejected outward from the central portion 13a, and the central portion 13a and the legs 13b are formed to be curved as a whole, and the central portion 13a and the legs The cross section across 13 b is arcuate. Further, when the displacement between the central portion 13a and the tip of the leg portion 13b engages the lid member 12 with the wafer accommodating member 11, the pressing member 13 is between the wafer back surface W2 and the inner wall surface 12a of the lid member 12. It is shaped to be larger than the height of the space to be formed.
- the inside of the pressing member 13 is The core portion 13a is pushed by the lid member 12, and the peripheral portion of the semiconductor wafer W is pressed through the wafer back surface protection sheet 14 with the tip of the leg portion 13b.
- the pressing member 13 having an arched cross-sectional shape is used, but a member in which an elastic body is held between the upper surface portion and the bottom surface may be used.
- the portion pressed by the pressing member may be a part of the peripheral edge portion or the like of the back surface protection sheet as in this embodiment or may be the entire surface of the back surface protection sheet.
- the pressing member and the back surface protection sheet can be bonded in advance.
- the storage container 10 when the semiconductor wafer W is accommodated in the wafer storage container 10, and the storage container 10 is packaged in a laminated bag to replace the inside of the bag with an inert gas, a flow of air is generated. Even if particles enter into the wafer storage container 10, the particles are captured by the wafer back surface protection sheet 14 so that no particles adhere to the semiconductor wafer back surface W1. Also, even if a gap is formed at the position of the orientation flat provided on the semiconductor wafer W, the particles entering the wafer storage container 10 can not go around to the wafer surface side, so the particles adhere to the semiconductor wafer surface W1. None happened
- the size of the wafer storage container 10 is not limited, and one corresponding to the size of the semiconductor wafer W to be accommodated, for example, one in which the diameter of the dome-shaped recess 11 a is slightly larger than the diameter of the semiconductor wafer W You can use
- FIG. 3 is a perspective view showing an outline of a storage container for semiconductor wafers according to a second embodiment
- FIG. 4 is a cross-sectional view thereof.
- a wafer storage container 10 is almost the same as that of the first embodiment, and the same members are denoted by the same reference numerals.
- a wafer surface protection sheet 15 is provided as a wafer surface protection member between the semiconductor wafer W and the dome-shaped recess 1 la. Is different from the wafer storage container 10 of the first embodiment.
- wafer surface protection sheet 15 has a thickness of 200 ⁇ m fluorine-based. It is made of a resin film, has substantially the same shape as the inner wall surface of the dome-shaped recess 11a, and is in close contact with the dome-shaped recess 11a. As a result, the space formed between the semiconductor wafer W and the dome-shaped concave portion 11a is made smaller by a little. Therefore, the thickness of the wafer surface protective sheet 15 is not particularly limited, but it is desirable to be thick enough not to lose the holding performance of the semiconductor wafer W.
- the domed recess 11a of the wafer accommodating member 11 is formed on the surface side of the semiconductor wafer W.
- the wafer surface W1 is opened so as to hold the wafer peripheral portion.
- a larger space is generated on the front surface side of the semiconductor wafer W than on the back surface side where the pressing member 13 is inserted, and particles remain and it is relatively easy for particles to adhere. It can be said that it is in the state. Therefore, by providing the wafer surface protective sheet 15, the space formed between the semiconductor wafer W and the dome-shaped concave portion 11a is made small, and the particles are prevented from remaining in the space.
- the space between the semiconductor wafer W and the dome-shaped recess 11 a is smaller than that of the conventional wafer storage container, there is a possibility that particles may remain on the front side of the semiconductor wafer W. Since the temperature is lowered, the surface of the semiconductor wafer W can be kept more clean.
- the wafer storage container 10 is packaged in a laminate bag and the inside of the bag is filled with an inert gas (for example, nitrogen).
- an inert gas for example, nitrogen
- the particles on the front and back surfaces of the semiconductor wafer are measured (the amount of parts before packaging), the measured semiconductor wafer is stored in a wafer storage container, and the wafer storage container is put in an aluminum laminate bag. The Then, the laminate bag is put in a vacuum chamber 1 to reduce the pressure in the chamber, and then an inert gas such as nitrogen is introduced into the chamber 1 and the heater in the chamber 1 is thermocompression-bonded to the port of the laminate bag to laminate. I closed the bag. Next, after leaving in this state for several hours (for example, 3 hours), the laminate bag was opened, the semiconductor wafer was taken out from the wafer storage container, and the amount of particles on the front and back of the wafer was measured (particles after packaging). Here, the particles on the wafer surface are measured using a foreign matter detection device And the particles on the back of the wafer were observed visually.
- the semiconductor wafer was a 2-inch diameter InP semiconductor wafer, and measurements were made on a plurality of InP semiconductor wafers. The same measurement was performed using a conventional wafer storage container (see FIGS. 5 and 6) as a comparative example.
- Table 1 shows an average value of particle density of particles on the wafer surface measured with a foreign matter detection device for 50 InP semiconductor wafers, and targets particles having a particle diameter of 0.3 ⁇ m or more.
- the wafer surface particle density after packaging is increased by 0.16 pcs / cm 2 compared to that before packaging
- the wafer surface particle density after packaging is only increased by 0.44 pcs / cm 2 . From this, it can be said that the wafer back surface protective sheet 14 can efficiently suppress the adhesion of the particles entering upon replacement with the inert gas to the wafer surface.
- the wafer storage container according to the second embodiment in which the front wafer surface protective sheet 15 is also provided no change in the particle density of the wafer surface is observed before and after packaging, and entry is made when replacing with inert gas. It can be said that the adhesion of these particles to the wafer surface is almost completely suppressed.
- Table 2 shows an average value of the number of particles on the wafer in which the particles on the back surface of the 20 InP semiconductor wafers were visually observed, and targets for particles having a diameter of about 0.1 mm or more.
- the particles attached to the back surface of the semiconductor wafer do not affect the quality of the semiconductor wafer so much, so it is considered that it is not necessary to evaluate as strictly as the particles attached to the wafer surface. .
- the number of particles on the back side of the wafer after packaging is 1.3 before packaging.
- the wafer storage container according to the first and second embodiments in which only the back surface protection sheet 14 is provided is used, while the number of wafers is increased, the number of particles on the back surface of the wafer after packaging is used. There was no change in That is, it can be said that the wafer back surface protection sheet 14 can almost completely suppress the adhesion of the particles entering upon substitution with the inert gas to the back surface of the wafer.
- a semiconductor wafer is accommodated in the wafer storage container, the storage container is packaged in a laminate bag, and the inside of the bag is replaced with an inert gas.
- the particles can be effectively prevented from adhering and contaminating the front and back surfaces of the semiconductor wafer, so that the surface of the semiconductor wafer can be prevented.
- Can be kept clean for a long time. Therefore, the manufacturer of semiconductor devices can also take out the semiconductor wafer from the wafer storage container and perform epitaxial growth on the surface of the semiconductor wafer as it is, so that the wafer surface can be cleaned as a step before epitaxial growth. It is possible to improve the productivity without the need for processing
- the force for forming the wafer back surface protection sheet 14 and the wafer surface protection sheet 15 with a fluorine-based resin film such as PTFE is not limited to this. Or even if it is made of a material that is hard to generate particles such as chloride boule.
- the shape of the pressing member is not limited to that described in the above embodiment.
- an elastic member 21 such as a panel is provided on the surface opposite to the surface of the wafer back surface protecting member 22 in close contact with the wafer, and the wafer back surface protecting member 20 also serves as a pressing member. Good.
- the type of semiconductor wafer to be accommodated is not limited, and it can be applied as a storage container for semiconductor wafers other than InP.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Packaging Frangible Articles (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/596,681 US7510082B2 (en) | 2004-05-19 | 2005-03-23 | Wafer storage container |
EP20050721296 EP1748481B1 (en) | 2004-05-19 | 2005-03-23 | Wafer storage container |
JP2006513501A JP4676430B2 (ja) | 2004-05-19 | 2005-03-23 | ウェハ保管容器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-148910 | 2004-05-19 | ||
JP2004148910 | 2004-05-19 |
Publications (1)
Publication Number | Publication Date |
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WO2005112106A1 true WO2005112106A1 (ja) | 2005-11-24 |
Family
ID=35394425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/005196 WO2005112106A1 (ja) | 2004-05-19 | 2005-03-23 | ウェハ保管容器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7510082B2 (ja) |
EP (1) | EP1748481B1 (ja) |
JP (1) | JP4676430B2 (ja) |
CN (1) | CN100501964C (ja) |
WO (1) | WO2005112106A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008023639A1 (fr) | 2006-08-25 | 2008-02-28 | Nippon Mining & Metals Co., Ltd. | Substrat semi-conducteur pour croissance épitaxiale et procédé pour le produire |
JP2008531416A (ja) * | 2005-02-27 | 2008-08-14 | インテグリス・インコーポレーテッド | 絶縁システムを備えるレチクルポッド |
JP2009043862A (ja) * | 2007-08-08 | 2009-02-26 | Miraial Kk | 枚葉式ウエハケース |
CN105102347A (zh) * | 2013-03-26 | 2015-11-25 | 刘汝拯 | 包装弹性压环 |
WO2018216440A1 (ja) * | 2017-05-26 | 2018-11-29 | 住友電気工業株式会社 | Iii-v族化合物半導体基板およびエピタキシャル層付iii-v族化合物半導体基板 |
JP2020040679A (ja) * | 2018-09-06 | 2020-03-19 | 株式会社トクヤマ | ウェハー収納容器及びウェハーの収納方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009022402A1 (ja) * | 2007-08-10 | 2009-02-19 | Fujitsu Limited | 無線基地局および移動局 |
US8393471B2 (en) * | 2008-04-18 | 2013-03-12 | Texas Instruments Incorporated | Packing insert for disc-shaped objects |
US10068787B2 (en) * | 2016-12-30 | 2018-09-04 | Sunpower Corporation | Bowing semiconductor wafers |
EP3579265B1 (en) * | 2017-02-06 | 2020-08-19 | Achilles Corporation | Substrate housing container |
TWI757132B (zh) * | 2021-03-26 | 2022-03-01 | 迅得機械股份有限公司 | 半導體物件容器儲存裝置 |
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- 2005-03-23 EP EP20050721296 patent/EP1748481B1/en active Active
- 2005-03-23 WO PCT/JP2005/005196 patent/WO2005112106A1/ja active Application Filing
- 2005-03-23 JP JP2006513501A patent/JP4676430B2/ja active Active
- 2005-03-23 CN CNB200580024095XA patent/CN100501964C/zh active Active
- 2005-03-23 US US11/596,681 patent/US7510082B2/en active Active
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008531416A (ja) * | 2005-02-27 | 2008-08-14 | インテグリス・インコーポレーテッド | 絶縁システムを備えるレチクルポッド |
WO2008023639A1 (fr) | 2006-08-25 | 2008-02-28 | Nippon Mining & Metals Co., Ltd. | Substrat semi-conducteur pour croissance épitaxiale et procédé pour le produire |
US7875957B2 (en) | 2006-08-25 | 2011-01-25 | Nippon Mining & Metals Co., Ltd. | Semiconductor substrate for epitaxial growth and manufacturing method thereof |
JP5234963B2 (ja) * | 2006-08-25 | 2013-07-10 | Jx日鉱日石金属株式会社 | エピタキシャル成長用半導体基板の製造方法 |
JP2009043862A (ja) * | 2007-08-08 | 2009-02-26 | Miraial Kk | 枚葉式ウエハケース |
CN105102347A (zh) * | 2013-03-26 | 2015-11-25 | 刘汝拯 | 包装弹性压环 |
WO2018216440A1 (ja) * | 2017-05-26 | 2018-11-29 | 住友電気工業株式会社 | Iii-v族化合物半導体基板およびエピタキシャル層付iii-v族化合物半導体基板 |
JP6477990B1 (ja) * | 2017-05-26 | 2019-03-06 | 住友電気工業株式会社 | Iii−v族化合物半導体基板およびエピタキシャル層付iii−v族化合物半導体基板 |
JP2020040679A (ja) * | 2018-09-06 | 2020-03-19 | 株式会社トクヤマ | ウェハー収納容器及びウェハーの収納方法 |
JP7175144B2 (ja) | 2018-09-06 | 2022-11-18 | 株式会社トクヤマ | ウェハー収納容器及びウェハーの収納方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1985367A (zh) | 2007-06-20 |
JP4676430B2 (ja) | 2011-04-27 |
CN100501964C (zh) | 2009-06-17 |
US20070221519A1 (en) | 2007-09-27 |
EP1748481A4 (en) | 2010-11-03 |
JPWO2005112106A1 (ja) | 2008-07-31 |
US7510082B2 (en) | 2009-03-31 |
EP1748481B1 (en) | 2015-04-22 |
EP1748481A1 (en) | 2007-01-31 |
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