CN201795966U - Efficient seed crystal detection tool - Google Patents
Efficient seed crystal detection tool Download PDFInfo
- Publication number
- CN201795966U CN201795966U CN2010205359959U CN201020535995U CN201795966U CN 201795966 U CN201795966 U CN 201795966U CN 2010205359959 U CN2010205359959 U CN 2010205359959U CN 201020535995 U CN201020535995 U CN 201020535995U CN 201795966 U CN201795966 U CN 201795966U
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- Prior art keywords
- seed crystal
- hole
- utility
- efficient seed
- detection tool
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Abstract
The utility model relates to a tool for detecting the sizes of seed crystals under normal circumstances. The utility model adopts the technical scheme that the efficient seed crystal detection tool comprises a body and is characterized in that a first through hole and a second through hole are symmetrically formed at the two ends of the body. The utility model has the following advantages: the tool has simple structure, and can detect the sizes of the seed crystals simply, conveniently and quickly without damaging the seed crystals; and the detection tool is made of a plastic material, so that the contamination of the seed crystals caused by metal is avoided.
Description
Technical field
The utility model relates to a kind of instrument that detects seed size under conventional environment.
Background technology
Seed crystal is the seed of growing single-crystal, also be crystal seed, it takes from dislocation-free, not damaged, the unstressed part at monocrystalline middle part, the seed crystal that silicon single crystal is used as shown in Figure 1: seed crystal is whole to be right cylinder, in right cylinder the first half one small gap is arranged, be used for when crystal-pulling fixedly seed crystal.Usually the seed crystal diameter of our use is between 17.45 ~ 17.50mm, and length is about 150mm.When adopting Czochralski grown crystal, the silicon materials of seed crystal and fusion are in contact with one another, and slowly lift seed crystal then, and the monocrystalline that makes new advances of will growing below seed crystal comes.Therefore, obtaining of seed crystal is very important, cultivate the monocrystalline of high-quality and should select good seed crystal, and the defective on the seed crystal, as dislocation, cracking, the crystal of new growth is given in meeting in certain scope such as distortion of lattice " heredity ".Avoid using the seed crystal of gross imperfection, also will select seed crystal sometimes, disadvantageous to reduce " heredity " effect by means of physioptial method.Usually adopt vernier caliper the diameter of seed crystal to be checked when using vernier caliper, the slide calliper rule of steel and the collision of seed crystal easily cause the crackle of seed crystal face, bring the defective of seed crystal face, are unfavorable for the growth of follow-up high-quality monocrystalline.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of seed crystal testing tool is provided, and is easy to use.
According to the technical scheme that the utility model provides, described efficient seed crystal testing tool comprises body, it is characterized in that: at the two ends of body first through hole and second through hole are set symmetrically.
Described body be shaped as long round body, corresponding end is semicircle concentric on the center of circle of described first through hole and second through hole and the described long round body.
The diameter of described first through hole is 17.50mm; The diameter of described second through hole is 17.45mm.
The material of described body is plastics.
The height h of described body is 50 ~ 100mm.
The utility model has the advantages that: simple in structure, seed size can be detected simply and rapidly and seed crystal can not be damaged, because employed testing tool is a plastic material, avoided its pollution of metal pair simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in Figure 1, 2: described body 1 is a kind of plastics long round body, and its height h is 50 ~ 100mm.First through hole 2 and second through hole 3 are set symmetrically at the two ends of body 1.The diameter of first through hole 2 is 17.50mm; The diameter of second through hole 3 is 17.45mm.Corresponding end is semicircle concentric on the center of circle of described first through hole 2 and second through hole 3 and the described long round body.
The diameter of the seed crystal that the sun power industry is used is usually between 17.45 ~ 17.50mm.Make seed crystal pass first through hole 2 and second through hole 3 respectively,, show that the seed crystal diameter is excessive, need carry out sour and handle if seed crystal can not pass first through hole 2; If seed crystal can be by first through hole 2 but can not be passed through second through hole 3, show that the seed crystal diameter is in allowed band; If seed crystal can pass through first through hole 2 and second through hole 3 respectively, show that then seed size is too small.By this method, be easy to just can judge seed crystal and whether be our needed specification, and avoided pollution and damage seed crystal.
Claims (5)
1. efficient seed crystal testing tool comprises body, it is characterized in that: first through hole (2) and second through hole (3) are set symmetrically at the two ends of body (1).
2. efficient seed crystal testing tool as claimed in claim 1 is characterized in that: described body be shaped as long round body, corresponding end is semicircle concentric on the center of circle of described first through hole (2) and second through hole (3) and the described long round body.
3. efficient seed crystal testing tool as claimed in claim 1 or 2 is characterized in that: the diameter of described first through hole (2) is 17.50mm; The diameter of described second through hole (3) is 17.45mm.
4. efficient seed crystal testing tool as claimed in claim 1 is characterized in that: the material of described body is plastics.
5. efficient seed crystal testing tool as claimed in claim 1 is characterized in that: the height h of described body is 50 ~ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205359959U CN201795966U (en) | 2010-09-20 | 2010-09-20 | Efficient seed crystal detection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205359959U CN201795966U (en) | 2010-09-20 | 2010-09-20 | Efficient seed crystal detection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795966U true CN201795966U (en) | 2011-04-13 |
Family
ID=43850872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205359959U Expired - Fee Related CN201795966U (en) | 2010-09-20 | 2010-09-20 | Efficient seed crystal detection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963488A (en) * | 2010-09-20 | 2011-02-02 | 高佳太阳能股份有限公司 | High-efficiency seed crystal detection tool |
-
2010
- 2010-09-20 CN CN2010205359959U patent/CN201795966U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963488A (en) * | 2010-09-20 | 2011-02-02 | 高佳太阳能股份有限公司 | High-efficiency seed crystal detection tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20180920 |