Introduction
Typically, this standard is used in conjunction with IEC747-1-1983 "General Principles for Semiconductor Discrete Devices and Integrated Circuits - Part 1, General Principles". All the following basic information can be found in IEC747-1:
- Terminology;
- Text symbols
- Basic rating and characteristics—— Testing methods
- Reception and reliability The arrangement order of each chapter in this standard complies with the provisions of Article 21 of Chapter 2 of IEC 747-1
2 Scope
This standard provides standards for the following types of bipolar transistors: - low-power signal transistors (excluding those used for switches;
- power transistors (excluding those used for switches and high-frequency)—— High frequency power transistor for amplification and oscillation
- Transistors for switches 3 text symbols
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China