SU786728A1 - Method for measuring charge value at the interface of film structures - Google Patents

Method for measuring charge value at the interface of film structures Download PDF

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Publication number
SU786728A1
SU786728A1 SU792755605A SU2755605A SU786728A1 SU 786728 A1 SU786728 A1 SU 786728A1 SU 792755605 A SU792755605 A SU 792755605A SU 2755605 A SU2755605 A SU 2755605A SU 786728 A1 SU786728 A1 SU 786728A1
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SU
USSR - Soviet Union
Prior art keywords
charge
interface
voltage
film structures
operational amplifier
Prior art date
Application number
SU792755605A
Other languages
Russian (ru)
Inventor
В.И. Поляков
П.И. Перов
Л.А. Авдеева
Б.Г. Игнатов
Original Assignee
Ордена Трудового Красного Знамени Институт Радиотехники И Электроники
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Priority to SU792755605A priority Critical patent/SU786728A1/en
Application granted granted Critical
Publication of SU786728A1 publication Critical patent/SU786728A1/en

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Description

(54) СПОСОБ ОПРЕДЕЛЕНИЯ ВЕЛИЧИНЫ ЗАРЯДА НА ГРАНИЦЕ РАЗДЕЛА В ПЛЕНОЧНЫХ СТРУКТУРАХ(54) METHOD FOR DETERMINING THE CHARGE VALUE AT THE SECTION BORDER IN FILM STRUCTURES

Claims (1)

Форм у ла и з о б р е т еи и яForms and samples Способ определения величины заряда на границе раздела в пленочных структурах, основанный на заряде исследуемой структуры от источника постоянного напряжения, измерении напряжения на эталонном конденсаторе и вычислении подвижного и захватываемого заряда, отличающийся тем, что, с целью повышения точности и расширения функциональных возможно4 стен способа, после зарядки исследуемой структуры ее переключают от источника постоянного напряжения к входу операционного усилителя, измеряют напряжение 5 на выходе операционного усилителя и вычисляют величину заряда на дранице раздела по формуле:A method for determining the charge at the interface in film structures, based on the charge of the investigated structure from a constant voltage source, measuring the voltage at the reference capacitor and calculating the movable and trapped charge, characterized in that, in order to increase the accuracy and expand the functional, 4 possible walls of the method, after charging the investigated structure it is switched from a constant voltage source to the input of the operational amplifier, measure the voltage 5 at the output of the operational amplifier and subtract use the charge on the section page according to the formula: Q„+Q.„ - U0C0 (1 +K~l)-Qp, ю где Q^-f- Q ss —величина подвижного Q и захватываемого Qss зарядов;Q „+ Q.„ - U 0 C 0 (1 + K ~ l ) -Q p , where Q ^ -f-Q ss is the magnitude of the moving Q and the captured Q ss charges; Uo — напряжение на выходеU o - output voltage 15 операционного усилителя, равное напряжению на эталонном конденсаторе в цепи обратной связи усилителя после разряда иссле20 дуемой структуры;15 operational amplifier, equal to the voltage at the reference capacitor in the feedback circuit of the amplifier after the discharge of the investigated structure; К — коэффициент усиления усилителя;K is the gain of the amplifier; Со — емкость эталонного конденсатора;With about - the capacity of the reference capacitor; 25 Qp — заряд паразитной емкости.25 Q p - charge parasitic capacitance.
SU792755605A 1979-04-20 1979-04-20 Method for measuring charge value at the interface of film structures SU786728A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU792755605A SU786728A1 (en) 1979-04-20 1979-04-20 Method for measuring charge value at the interface of film structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU792755605A SU786728A1 (en) 1979-04-20 1979-04-20 Method for measuring charge value at the interface of film structures

Publications (1)

Publication Number Publication Date
SU786728A1 true SU786728A1 (en) 1982-04-23

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Family Applications (1)

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SU792755605A SU786728A1 (en) 1979-04-20 1979-04-20 Method for measuring charge value at the interface of film structures

Country Status (1)

Country Link
SU (1) SU786728A1 (en)

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