SU987712A1 - Method of measuring surface generation-recombination - Google Patents
Method of measuring surface generation-recombination Download PDFInfo
- Publication number
- SU987712A1 SU987712A1 SU813256161A SU3256161A SU987712A1 SU 987712 A1 SU987712 A1 SU 987712A1 SU 813256161 A SU813256161 A SU 813256161A SU 3256161 A SU3256161 A SU 3256161A SU 987712 A1 SU987712 A1 SU 987712A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- intensity
- recombination
- luminescence
- measuring
- negative luminescence
- Prior art date
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Description
(54) СПОСОБ ИЗМЕРЕНИЯ СКОРОСТИ ПОВЕРХ1ЮСТНОЙ ГЕНЕРАЦИИ-РЕКОМБИНАЦИИ(54) METHOD OF MEASURING THE SPEED OF SURFACE GENERATION-RECOMBINATION
1one
Изобретение относитс к полупроводниковой технике и может быть использовано дл контрол электрофизических параметров полупроводниковых пластин, используемых при изготовлении полупроводниковых пртборов .The invention relates to semiconductor technology and can be used to control the electrophysical parameters of semiconductor wafers used in the manufacture of semiconductor devices.
Известен способ измерени скорости поверхностной рекомбинации, основанный на помещении образца в скрещенные злектрическое и магнитное пол , облучении светом с знергией квантов, превышающей ишрину запрещенной зоны, измерении зависимости интенсивности люминесценции от величины напр женности электрического пол , вычислении скорости поверхностной реком&шации 11.A known method for measuring the surface recombination rate is based on placing a sample in a crossed electric and magnetic field, irradiating light with quantum energy exceeding the band gap, measuring the dependence of the luminescence intensity on the intensity of the electric field, calculating the speed of the surface recom. 11.
Недостатки этого способа - низка точность , обусловленна погрещност ми при определении абсолютных значений интенсивности люминесценции, его непригодность дл определени больцшх скоростей поверхностной рекомбинации.The disadvantages of this method are low accuracy due to faults in determining the absolute values of the luminescence intensity, its unsuitability for determining the highest rates of surface recombination.
Наиболее близким к предлагаемому вл етс способ измерени скорости поверхностной генерации-рекомбинации, основанный на измерении интенсивности отрицательной люминесценции полупроводниковой пластины, помещенной во взаимно перпендикул рные электрическое и магнитное пол , при изменении напр женности одного из полей при посто нной напр женности другого пол I2J.The closest to the present invention is a method of measuring the rate of surface generation-recombination, based on measuring the intensity of the negative luminescence of a semiconductor wafer placed in mutually perpendicular electric and magnetic fields, while changing the intensity of one of the fields with a constant intensity of the other field I2J.
Недостатками зтого .способа вл ютс низка точность и узкий диапазон измер емых скоростей поверхностной генерации-рекомбииации .The disadvantages of this method are low accuracy and a narrow range of measured rates of surface generation-recombination.
Цель изобретени - повышение точности и расширение диапазсжа измер емых скоростей поверхностной генерации-рекомбинации.The purpose of the invention is to improve the accuracy and expand the range of measured rates of surface generation-recombination.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813256161A SU987712A1 (en) | 1981-03-06 | 1981-03-06 | Method of measuring surface generation-recombination |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813256161A SU987712A1 (en) | 1981-03-06 | 1981-03-06 | Method of measuring surface generation-recombination |
Publications (1)
Publication Number | Publication Date |
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SU987712A1 true SU987712A1 (en) | 1983-01-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU813256161A SU987712A1 (en) | 1981-03-06 | 1981-03-06 | Method of measuring surface generation-recombination |
Country Status (1)
Country | Link |
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SU (1) | SU987712A1 (en) |
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1981
- 1981-03-06 SU SU813256161A patent/SU987712A1/en active
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