SU120673A1 - Method for determining the type of conductivity in Germany - Google Patents

Method for determining the type of conductivity in Germany

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Publication number
SU120673A1
SU120673A1 SU605309A SU605309A SU120673A1 SU 120673 A1 SU120673 A1 SU 120673A1 SU 605309 A SU605309 A SU 605309A SU 605309 A SU605309 A SU 605309A SU 120673 A1 SU120673 A1 SU 120673A1
Authority
SU
USSR - Soviet Union
Prior art keywords
conductivity
determining
type
germany
germanium
Prior art date
Application number
SU605309A
Other languages
Russian (ru)
Inventor
Ю.А. Концевой
Original Assignee
Ю.А. Концевой
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ю.А. Концевой filed Critical Ю.А. Концевой
Priority to SU605309A priority Critical patent/SU120673A1/en
Application granted granted Critical
Publication of SU120673A1 publication Critical patent/SU120673A1/en

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  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Description

Изобретение относитс  к способам определени  типа проводимост1г монокристаллического германи  по знаку термоэлектродвижущей силы при помощи термозонда.The invention relates to methods for determining the type of conductance of monocrystalline germanium by the sign of a thermoelectromotive force using a thermal probe.

Известные подобные способы, основанные на использовании нагретого термозонда, не обеспечивают необходимой точности определени  при исследовании образцов, проводимость которых близка к собственной проводимости германи .The known similar methods, based on the use of a heated thermal probe, do not provide the necessary accuracy of determination in the study of samples whose conductivity is close to the intrinsic conductivity of germanium.

Дл  устранени  этого недостатка предлагаетс  вместо нагретого зонда использовать охлажденный термозонд. Охлаждение термозонда может быть осуществлено холодильным термоэлементом, льдом, жидкими газами, например азотом, и другими известными способами. При охлаждении зонда в точке измерени  концентраци  носителей, обусловленных собственной проводимостью, резко уменьшаетс  и знак термоэлектродвижущей силы определ етс  только примесной проводимостью . При использовании охлажденного зонда можно задавать больщий градиент температуры. Кроме того, удельна  термоэлектродвижуща  сила образцов, проводимость которых близка к собственной проводимости германи , возрастает при охлаждении. Все это повыщает точность измерений и позвол ет четко и безошибочно определ ть наличие избытка концентрации доноров или акцепторов в слитках германи .To eliminate this drawback, it is proposed to use a cooled thermal probe instead of a heated probe. The cooling of the thermal probe can be carried out by a refrigerating thermoelement, ice, liquid gases, for example nitrogen, and other known methods. When the probe is cooled at the point of measurement, the concentration of carriers due to intrinsic conductivity decreases sharply and the sign of thermoelectromotive force is determined only by impurity conductivity. When using a cooled probe, a large temperature gradient can be set. In addition, the specific thermoelectromotive force of samples whose conductivity is close to the intrinsic conductivity of germanium increases with cooling. All this increases the accuracy of measurements and makes it possible to accurately and accurately determine the presence of an excess concentration of donors or acceptors in germanium ingots.

Предлагаемый способ может быть использован дл  контрол  технологического процесса при производстве чистого германи .The proposed method can be used to control the technological process in the production of pure germanium.

Предмет изобретени Subject invention

Способ определени  типа проводимости германи  термозондом по знаку электродвижущей силы, отличающийс  тем, что, с целью иовыщени  точности измерени , примен ют охлажденный термозонд, вместо нагретого, причем охлаждение его осуществл ют холодильным термоэлементом, сухим льдом, жидкими газами или другими известными приемами.The method of determining the type of germanium conductivity by using a thermal probe according to the sign of an electromotive force, characterized in that, in order to improve the measurement accuracy, a cooled thermal probe is used instead of heated, and it is cooled by a refrigeration thermoelement, dry ice, liquid gases or other known techniques.

SU605309A 1958-08-01 1958-08-01 Method for determining the type of conductivity in Germany SU120673A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU605309A SU120673A1 (en) 1958-08-01 1958-08-01 Method for determining the type of conductivity in Germany

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU605309A SU120673A1 (en) 1958-08-01 1958-08-01 Method for determining the type of conductivity in Germany

Publications (1)

Publication Number Publication Date
SU120673A1 true SU120673A1 (en) 1958-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU605309A SU120673A1 (en) 1958-08-01 1958-08-01 Method for determining the type of conductivity in Germany

Country Status (1)

Country Link
SU (1) SU120673A1 (en)

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