Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB/T 8760-2020 English PDF

Q: How long will the true-PDF of English version of GB/T 8760-2020 be delivered?

Upon your order, we will start to translate GB/T 8760-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Q: Can I share the purchased PDF of GB/T 8760-2020_English with my colleagues?

Yes. The purchased PDF of GB/T 8760-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Q: Should I purchase the latest version GB/T 8760-2020?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 8760-2020 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$149.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 8760-2020: Test method for dislocation density of monocrystal gallium arsenide
Status: Valid

GB/T 8760: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8760-2020	149	Add to Cart	3 days	Test method for dislocation density of monocrystal gallium arsenide	Valid
GB/T 8760-2006	319	Add to Cart	3 days	Gallium arsenide single crystal-determination of dislocation density	Obsolete
GB/T 8760-1988	279	Add to Cart	3 days	Gallium arsenide single crystal--Determination of dislocation density	Obsolete

Similar standards

GB/T 8753.1 GB/T 5163 GB/T 8753.4 GB/T 8763

Basic data

Standard ID: GB/T 8760-2020 (GB/T8760-2020)
Description (Translated English): Test method for dislocation density of monocrystal gallium arsenide
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H21
Classification of International Standard: 77.040
Word Count Estimation: 8,886
Date of Issue: 2020-09-29
Date of Implementation: 2021-08-01
Older Standard (superseded by this standard): GB/T 8760-2006
Regulation (derived from): National Standard Announcement No. 20 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 8760-2020: Test method for dislocation density of monocrystal gallium arsenide

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for dislocation density of monocrystal gallium arsenide ICS 77.040 H21 National Standards of People's Republic of China Replace GB/T 8760-2006 Method for testing dislocation density of gallium arsenide single crystal 2020-09-29 released 2021-08-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 8760-2006 "Measurement Method of Dislocation Density of Gallium Arsenide Single Crystal". This standard and GB/T 8760-2006 In comparison, the main technical changes except for editorial changes are as follows. ---Modified the specified content and scope of application in the scope of the standard (see Chapter 1, Chapter 1 of the.2006 edition); ---Added normative reference documents (see Chapter 2); --- The terms and definitions of dislocations and dislocation density have been deleted, and the introductory phrase "The terms and definitions defined by GB/T 14264 are applicable to This document" (see Chapter 3,.2006 version 2.1, 2.2); --- Deleted the content of "using selective optimization corrosion technology to display dislocations" in the principle of the method (see Chapter 4, Chapter 3 of the.2006 edition); --- Added "Unless otherwise specified, only reagents confirmed to be analytically pure and above are used in the test and analysis, and the resistivity of the water used is not small At 12MΩ·cm” (see Chapter 5); ---The requirements for potassium hydroxide, sulfuric acid and hydrogen peroxide have been revised (see Chapter 5, Chapter 4 of the.2006 edition); ---Modified the requirements of polishing liquid (see 5.4, 5.3 of the.2006 edition); ---Add "platinum crucible or silver crucible" to the equipment (see 6.3); ---Modified the requirements for sample preparation (see Chapter 7, Chapter 5 of the.2006 edition); ---Added the requirements for the field of view area and test point selection when using a metallurgical microscope with digital imaging (see 8.2.2, 8.3.1); ---Added the counting method and topography map when there are many and overlapping dislocation corrosion pits (see 8.4.2); ---The calculation formula in the test data processing uses S-1 instead of C (see Chapter 9, Chapter 8 of the.2006 edition); --- Revised the chapter title and increased the technical requirements for precision (see Chapter 10, Chapter 9 of the.2006 edition). This standard is composed of the National Semiconductor Equipment and Material Standardization Technical Committee (SAC/TC203) and the National Semiconductor Equipment and Material Standard The material sub-committee of the Chemical Technology Committee (SAC/TC203/SC2) jointly proposed and managed. Drafting organizations of this standard. Youyan Optoelectronics New Materials Co., Ltd., Yunnan Lincang Xinyuan Germanium Industry Co., Ltd., Guohe General Testing Evaluation and Certification Co., Ltd., the 46th Research Institute of China Electronics Technology Group, Guangdong Leading Thin Material Co., Ltd., Albot (Fujian) New Materials Co., Ltd. The main drafters of this standard. Zhao Jingping, Lin Quan, Yu Hongguo, Hui Feng, Liu Shufeng, Yao Kang, Xu Suocheng, Xu Xing, Ma Yingjun, Wang Tonghan, Zhao Suxiao, Wei Shenglin, Chen Jingjing, Fu Ping. The previous versions of the standard replaced by this standard are as follows. ---GB/T 8760-1988, GB/T 8760-2006. Method for testing dislocation density of gallium arsenide single crystal

1 Scope

This standard specifies the test method for dislocation density of gallium arsenide single crystal. This standard is applicable to the measurement of dislocation density of GaAs single crystals on {100} and {111} planes, and the test range is 0cm-2~100000cm-2.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 14264 Terminology of Semiconductor Materials

3 Terms and definitions

The terms and definitions defined in GB/T 14264 apply to this document.

4 Principle of the method

The lattice around the dislocations in the gallium arsenide single crystal will be distorted. When some chemical etchant is used to corrode the crystal surface, the The corrosion rate of the dislocation outcrop is faster, and then the corrosion pit with a specific shape is formed. Observe under a microscope and count these according to certain rules For corrosion pits with a specific shape, the number of corrosion pits per unit field of view is the dislocation density.

5 Reagents

Unless otherwise specified, only reagents of analytical purity and above are used in the test and analysis, and the resistivity of the water used is not less than 12MΩ·cm. 5.1 Potassium hydroxide (KOH), the mass fraction is not less than 85%. 5.2 Sulfuric acid (H2SO4), the mass fraction is 95% to 98%. 5.3 Hydrogen peroxide (H2O2), the mass fraction is not less than 30%. 5.4 Polishing liquid. a mixed liquid of sulfuric acid, hydrogen peroxide, and water, with a volume ratio of (2~3).1.1, ready to use.

6 Equipment

6.1 Metallurgical microscope, with a magnification of 100 times to 500 times, can meet the requirements of the field of view specified in 8.2. 6.2 The heater can heat potassium hydroxide to a molten and clarified state. 6.3 Platinum crucible or silver crucible.

7 Sample preparation

7.1 Directional cutting After the gallium arsenide single crystal to be tested is oriented, cut a test piece with a thickness of not less than 0.5mm perpendicular to the growth direction of the gallium arsenide single crystal. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 8760-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 8760-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 8760-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 8760-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 8760-2020?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 8760-2020 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.