"Semiconductor lighting terminology" 7 standards approved

According to the "Notice of the Ministry of information industry, the year 2007 the first batch of electronic industry standard research program (letter letter [2007]21)", by the semiconductor lighting technology standards working group (hereinafter referred to as the "standard working group") is responsible for the drafting of the 7 electronic industry standards (Project name and main bearing units do see table).

After a year of hard work, the project undertaker drafted a draft standard, comments on the standard working group, part of the standard is still "alliance national semiconductor lighting project set up standardization coordination to promote the work of the group" to solicit opinions. The organizer according to the feedback of the standard was revised, completed the draft standard and related information, and publicity in the Chinese Electronics Standardization Association website, comments to the community. After the end of the publicity period, did not receive feedback from the China Association of electronic industry standardization technology.

According to the relevant procedures for the development of the electronic industry standards, in late September, we organized the relevant experts in the industry, held in Guiyang, the standards will be reviewed, the seven standards were reviewed. The meeting of experts carefully reviewed the standards, made the following conclusions:

The preparation of standard to perform the relevant program of electronic industry standards, audit material kitting.

The preparation of standards in accordance with the national standard GB/T1.1 - 2000 "standardization work guidelines for unit first: drafting and presentation of the first part of the standard: the relevant provisions of the basic provisions of the preparation of the standard".

The standard is consistent with the actual content of technology and science and technology development direction of our country; technical regulations advanced, safe and reliable, economical and reasonable; in accordance with laws, regulations and policies of our country, to harmonize with the relevant national standards and industry standards and the same level.

Meeting of experts at the same time put forward some amendments to these seven standards and recommendations.

The meeting agreed to approve the seven standards. After the meeting, the preparation of the standard group will be in accordance with the spirit of the meeting to further revise and improve the draft, the formation of the draft standards for approval and approval of the sets of information submitted to the relevant departments.

Which seven standards, to build semiconductor lighting standard system of 2 neutron fields (LED chip, including the midstream LED devices, LED module / component) standard system plays an important role in promoting the development of the industry, to play a role in promoting, to regulate the market to play a certain role to ensure. At the same time, these seven standards are also involved in the upstream materials industry: substrate and phosphor. Here is a brief introduction to these seven criteria:

1 semiconductor lighting terminology: including basic terminology, related to the semiconductor lighting light measurement terminology, color measurement terminology, thermoelectric measurement terminology, epitaxy, chip, packaging and lighting applications, terms and definitions, a total of more than and 140 terms. The standard also through the cross strait Information Industry Technical Standards Forum, this platform to seek the views of the Taiwan, and the preparation of the semiconductor lighting terminology on the lighting table draft.

2 sapphire substrate for gallium nitride based light emitting diodes: parameters, test methods, geometric dimensions, test methods and quality assurance requirements of sapphire substrate for GaN based light-emitting diodes are provided.

3 fluorescent powder for semiconductor light-emitting diodes: the performance requirements, test methods, inspection rules and signs, packaging, transportation, storage, etc.. The standard includes 5 grades of aluminate phosphors and silicate phosphor powder of the 7 grades, for the current new nitride phosphor, taking into account its technology and production will be greatly improved, yet included.

4 power semiconductor light-emitting diode chip technical specification: the provisions of the 100mA high power light-emitting diode chip quality assurance procedures, test / inspection items and methods.

The 5 semiconductor light-emitting diode chip test method: Test Method of photometry and colorimetry, and electrical, thermal and other main parameters including semiconductor light-emitting diode chip. The test block diagram, test procedures and test conditions are specified.

6 semiconductor optoelectronic devices Detail Specification for small power LEDs: quality assurance procedures, test / inspection items and methods for LEDs with current below 100mA. With the previous display with LED standard is different, added the parameters of the main wavelength, chromaticity characteristics of color index, color temperature, chromaticity coordinates and lighting related.

7 semiconductor light-emitting diode product series spectrum: the provisions of the visible light (including white light) semiconductor light-emitting diode standard series and varieties, as well as the selection and application of the guidelines. Its application areas include display, graphics and / or text display, decorative display / lighting, general lighting, etc.. LED selected spectrum principle is: performance index is applied to a variety of applications, and has great application scope, structure, assembly and function has produced a variety of repetition; its design has been finalized, material and technology is verified, and the quality control measures for the test, have good experiences and use; varieties are being developed and to be developed is necessary for the development of semiconductor lighting standards in the field of general goods.

In particular, it is mentioned that, in the semiconductor light-emitting diode with fluorescent powder, the standard, the first proposed the use of "external quantum efficiency" instead of "relative brightness" as an indicator of evaluation of luminous efficiency of phosphors. Since each phosphor product has its own absolute quantum efficiency value, it is not necessary to compare with the standard phosphor in the test