SU1625263A1 - METHOD FOR OBTAINING SILICON EPITAXIAL LAYERS OF CONDUCTIVITY R-TYPE - Google Patents
METHOD FOR OBTAINING SILICON EPITAXIAL LAYERS OF CONDUCTIVITY R-TYPEInfo
- Publication number
- SU1625263A1 SU1625263A1 SU4678375/25A SU4678375A SU1625263A1 SU 1625263 A1 SU1625263 A1 SU 1625263A1 SU 4678375/25 A SU4678375/25 A SU 4678375/25A SU 4678375 A SU4678375 A SU 4678375A SU 1625263 A1 SU1625263 A1 SU 1625263A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- temperature
- epitaxy
- epitaxial layers
- gap
- silicon epitaxial
- Prior art date
Links
Abstract
Способ получения кремниевых эпитаксиальных слоев р-типа проводимости, включающий создание узкого зазора между подложкой и пластиной-источником на основе поликристаллического кремния, нагрев системы до температуры эпитаксии, введение в зазор насыщенного при температуре эпитаксии раствора кремния в расплаве алюминия, изотермическую выдержку системы в поле градиента температуры до полной перекристаллизации материала источника на подложку, отличающийся тем, что, с целью снижения удельного сопротивления слоев, в качестве источника используют материал состава Si(BO), где x=90-95 мас.%, ширину зазора устанавливают в пределах 30-60 мкм, эпитаксию ведут в диапазоне температур 1320-1470 K, причем дополнительно изменяют среднюю температуру относительно выбранной температуры эпитаксии на 5-10 K, с частотой 0,06-1 Гц.The method of obtaining silicon epitaxial layers of p-type conductivity, including the creation of a narrow gap between the substrate and the source plate based on polycrystalline silicon, heating the system to an epitaxy temperature, introducing into the gap an aluminum melt saturated at the temperature of epitaxy, isothermal holding the system in a gradient field temperature until complete recrystallization of the source material on the substrate, characterized in that, in order to reduce the resistivity of the layers, as a source of The material of the composition Si (BO), where x = 90-95 wt.%, is set, the width of the gap is set within 30-60 μm, the epitaxy is carried out in the temperature range 1320-1470 K, and the average temperature with respect to the selected epitaxy temperature is additionally changed by 5- 10 K, with a frequency of 0.06-1 Hz.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4678375/25A SU1625263A1 (en) | 1989-04-18 | 1989-04-18 | METHOD FOR OBTAINING SILICON EPITAXIAL LAYERS OF CONDUCTIVITY R-TYPE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4678375/25A SU1625263A1 (en) | 1989-04-18 | 1989-04-18 | METHOD FOR OBTAINING SILICON EPITAXIAL LAYERS OF CONDUCTIVITY R-TYPE |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1625263A1 true SU1625263A1 (en) | 2016-04-10 |
Family
ID=60529929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4678375/25A SU1625263A1 (en) | 1989-04-18 | 1989-04-18 | METHOD FOR OBTAINING SILICON EPITAXIAL LAYERS OF CONDUCTIVITY R-TYPE |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1625263A1 (en) |
-
1989
- 1989-04-18 SU SU4678375/25A patent/SU1625263A1/en active
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