SU1433333A1 - Device for measurement of surface photo-emf of semiconductors - Google Patents

Device for measurement of surface photo-emf of semiconductors

Info

Publication number
SU1433333A1
SU1433333A1 SU4098373/25A SU4098373A SU1433333A1 SU 1433333 A1 SU1433333 A1 SU 1433333A1 SU 4098373/25 A SU4098373/25 A SU 4098373/25A SU 4098373 A SU4098373 A SU 4098373A SU 1433333 A1 SU1433333 A1 SU 1433333A1
Authority
SU
USSR - Soviet Union
Prior art keywords
output
input
controlled
electronic switch
controlled electronic
Prior art date
Application number
SU4098373/25A
Other languages
Russian (ru)
Inventor
Н.Г. Борзунов
В.В. Монич
Ю.В. Медведев
А.С. Петров
Л.Г. Лапатин
Original Assignee
Сибирский физико-технический институт им.В.Д.Кузнецова при Томском государственном университете им.В.В.Куйбышева
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 Сибирский физико-технический институт им.В.Д.Кузнецова при Томском государственном университете им.В.В.Куйбышева filed Critical Сибирский физико-технический институт им.В.Д.Кузнецова при Томском государственном университете им.В.В.Куйбышева
Priority to SU4098373/25A priority Critical patent/SU1433333A1/en
Application granted granted Critical
Publication of SU1433333A1 publication Critical patent/SU1433333A1/en

Links

Landscapes

  • Testing Of Individual Semiconductor Devices (AREA)

Abstract

FIELD: semiconductor technology. SUBSTANCE: the device has pulsed light source 1, capacitor cell 2 with a semitransparent electrode, pulse amplifier 3, indicator 4, synchronizer 5, test pulse generator 6, first controlled commutator 7 with reversal of output voltage polarity, second controlled commutators with reversal of output voltage polarity, comparison circuit 9, reference signal unit 10, comparator 11, resistor 12, first controlled electronic switch 13, second controlled electronic switch 14 and third controlled electronic switch 15. The pulse amplifier is made controllable, and its control input is connected to the comparison circuit output, and the output is additionally connected to the comparator input, whose output is connected to the control inputs of the first and second commutators. The inputs of the second and third controlled electronic switches are connected via the semitransparent electrode of the capacitor cell. The output of the third controlled electronic switch is connected to the input of the pulse amplifier. The synchronizer first output is connected to the synchronizing input of the test pulse generator, the second input - to the control inputs of all electronic switches, and the third output - to the synchronizing input of the pulsed light source. EFFECT: enhanced accuracy of measurement of value and determination of polarity of surface photo-emf. 1 dwg
SU4098373/25A 1986-07-30 1986-07-30 Device for measurement of surface photo-emf of semiconductors SU1433333A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4098373/25A SU1433333A1 (en) 1986-07-30 1986-07-30 Device for measurement of surface photo-emf of semiconductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4098373/25A SU1433333A1 (en) 1986-07-30 1986-07-30 Device for measurement of surface photo-emf of semiconductors

Publications (1)

Publication Number Publication Date
SU1433333A1 true SU1433333A1 (en) 1994-06-15

Family

ID=60536091

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4098373/25A SU1433333A1 (en) 1986-07-30 1986-07-30 Device for measurement of surface photo-emf of semiconductors

Country Status (1)

Country Link
SU (1) SU1433333A1 (en)

Similar Documents

Publication Publication Date Title
GB9818468D0 (en) Differential touch senors and control circuit therefor
ES465726A1 (en) Hall-effect integrated circuit switch
JPS5743296A (en) Measuring device having plural measuring points connected via cable
GB1276997A (en) Position sensing circuit
DE3785203D1 (en) MEASURING CIRCUIT.
GB1211921A (en) Improvements in or relating to ramp signal generators
SU1433333A1 (en) Device for measurement of surface photo-emf of semiconductors
BR9006192A (en) VOLTAGE MEASUREMENT DEVICE
FR2314502A1 (en) Electrical leakage measurement apparatus - applies high voltage across component and measures current using opto-electronic threshold detection circuit
JPS54138466A (en) Measuring method of sliding face width of trolley wires
KR830002251Y1 (en) High Sensitivity Touch Switch
DE3462951D1 (en) Measuring device to detect a temperature difference
SU668088A1 (en) Non-electric value-to-time interval converter
SU1615754A1 (en) Square voltage to frequency converter
JPS5529722A (en) Current measuring unit
SU580512A1 (en) Oscillograph synchronization device
SU725230A1 (en) Switch
SU505126A1 (en) Voltage-time converter
SU960661A1 (en) Analog converter
JPS6469962A (en) Detecting apparatus of contact resistance
SU1019625A1 (en) Voltage/time interval converter
GB953522A (en) Alternating signal translating circuit
SU1166146A1 (en) Logarithmic function generator
JPS54122182A (en) Reflection type photo electric detector
SU1188879A1 (en) Sensory electric switch