RU2009130823A - METHOD FOR MANUFACTURING OMIC CONTACT TO GaAs BASED ON THIN FILMS Ge and Cu - Google Patents
METHOD FOR MANUFACTURING OMIC CONTACT TO GaAs BASED ON THIN FILMS Ge and Cu Download PDFInfo
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- RU2009130823A RU2009130823A RU2009130823/28A RU2009130823A RU2009130823A RU 2009130823 A RU2009130823 A RU 2009130823A RU 2009130823/28 A RU2009130823/28 A RU 2009130823/28A RU 2009130823 A RU2009130823 A RU 2009130823A RU 2009130823 A RU2009130823 A RU 2009130823A
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Abstract
1. Способ изготовления омического контакта к GaAs на основе тонких пленок Ge и Cu, включающий создание на поверхности пластины n-GaAs маски для реализации процесса обратной литографии, послойное осаждение пленок Ge и Сu на поверхность пластины n-GaAs, первую термообработку в едином вакуумном цикле с процессом осаждения слоев, извлечение пластины n-GaAs из вакуумной камеры, удаление маски и вторую термообработку, отличающийся тем, что первую термообработку производят в атмосфере атомарного водорода при температуре от 150 до 460°С и плотности потока атомов водорода на поверхность пластины n-GaAs, равной 1013-1016 ат·см2 с-1. ! 2. Способ изготовления омического контакта к GaAs по п.1, отличающийся тем, что осаждение металлизации и первую термообработку проводят в вакуумной камере при давлении остаточной атмосферы менее 5·10-6 торр. ! 3. Способ изготовления омического контакта к GaAs по п.1 или 2, отличающийся тем, что сначала на поверхность пластины n-GaAs осаждают пленку Cu, а затем пленку Ge. ! 4. Способ изготовления омического контакта к GaAs по п.3, отличающийся тем, что толщины пленок Cu и Ge выбирают таким образом, что массовое содержание Ge в двухслойной композиции составляет 20-45%. ! 5. Способ изготовления омического контакта к GaAs по п.1 или 2, отличающийся тем, что осаждение на поверхность пластины n-GaAs пленок Сu и Ge производят одновременно, либо из сплава CuGex, либо из двух независимых источников Сu и Ge с образованием пленки CuGex, где х=0,2-0,45. 1. A method of manufacturing an ohmic contact to GaAs based on thin Ge and Cu films, comprising creating a mask on the surface of the n-GaAs plate for the reverse lithography process, layer-by-layer deposition of Ge and Cu films on the surface of the n-GaAs plate, the first heat treatment in a single vacuum cycle with the process of deposition of the layers, removing the n-GaAs plate from the vacuum chamber, removing the mask and the second heat treatment, characterized in that the first heat treatment is carried out in an atmosphere of atomic hydrogen at a temperature of from 150 to 460 ° C and atomic flux density hydrogen on the surface of the n-GaAs wafer, equal to 1013-1016 at · cm2 s-1. ! 2. A method of manufacturing an ohmic contact to GaAs according to claim 1, characterized in that the metallization deposition and the first heat treatment are carried out in a vacuum chamber at a residual atmosphere pressure of less than 5 · 10-6 torr. ! 3. A method of manufacturing an ohmic contact to GaAs according to claim 1 or 2, characterized in that first a Cu film is deposited on the surface of the n-GaAs plate, and then a Ge film. ! 4. A method of manufacturing an ohmic contact to GaAs according to claim 3, characterized in that the thicknesses of the Cu and Ge films are selected so that the mass content of Ge in the two-layer composition is 20-45%. ! 5. A method of manufacturing an ohmic contact to GaAs according to claim 1 or 2, characterized in that the deposition on the surface of the n-GaAs wafer of Cu and Ge films is performed simultaneously, either from a CuGex alloy or from two independent sources of Cu and Ge to form a CuGex film where x = 0.2-0.45.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2009130823/28A RU2422941C2 (en) | 2009-08-12 | 2009-08-12 | METHOD OF MAKING OHMIC CONTACT TO GaAs BASED ON THIN Ge AND Cu FILMS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2009130823/28A RU2422941C2 (en) | 2009-08-12 | 2009-08-12 | METHOD OF MAKING OHMIC CONTACT TO GaAs BASED ON THIN Ge AND Cu FILMS |
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RU2009130823A true RU2009130823A (en) | 2011-02-20 |
RU2422941C2 RU2422941C2 (en) | 2011-06-27 |
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RU2009130823/28A RU2422941C2 (en) | 2009-08-12 | 2009-08-12 | METHOD OF MAKING OHMIC CONTACT TO GaAs BASED ON THIN Ge AND Cu FILMS |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2458429C1 (en) * | 2011-03-10 | 2012-08-10 | Закрытое акционерное общество "Научно-производственная фирма "Микран" | Method of obtaining thin-film copper-germanium joint |
RU2460172C1 (en) * | 2011-05-30 | 2012-08-27 | Закрытое акционерное общество "Научно-производственная фирма "Микран" | Transistor based on semiconductor compound and method of its manufacturing |
-
2009
- 2009-08-12 RU RU2009130823/28A patent/RU2422941C2/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2458429C1 (en) * | 2011-03-10 | 2012-08-10 | Закрытое акционерное общество "Научно-производственная фирма "Микран" | Method of obtaining thin-film copper-germanium joint |
RU2460172C1 (en) * | 2011-05-30 | 2012-08-27 | Закрытое акционерное общество "Научно-производственная фирма "Микран" | Transistor based on semiconductor compound and method of its manufacturing |
Also Published As
Publication number | Publication date |
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RU2422941C2 (en) | 2011-06-27 |
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