JPS5563768A - Threshold voltage measuring instrument - Google Patents
Threshold voltage measuring instrumentInfo
- Publication number
- JPS5563768A JPS5563768A JP13770178A JP13770178A JPS5563768A JP S5563768 A JPS5563768 A JP S5563768A JP 13770178 A JP13770178 A JP 13770178A JP 13770178 A JP13770178 A JP 13770178A JP S5563768 A JPS5563768 A JP S5563768A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- measured
- output
- threshold voltage
- input
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
PURPOSE: To perform an accurate and simple measurement of a threshold voltage by so constructing that, an element to be measured is provided at its input side with a counter and at its input and/or output sides with comparators.
CONSTITUTION: The up/down counter 10 holds a proper initial value. A start signal from the start switch 17 allows the counter 10 to start counting pluses from the clock pulse generater 20, superimposing them on the initial value. The output from the counter 10 is converted by the D/A converter 30 to an analogue quantity, amplified 40 as required, and enters the device to be measured 50. The comparator 62 compares the output voltage VOUT from the device to be measured 50 with the reference voltage VREF. If the output voltage VOUT exceeds the reference voltage VRFE, the comparator 62 immediately signals to stop the counter. Thus, this signal permits the counter 10 to stop counting and the voltmeter 80 to indicate the input voltage VIN of the element to be measured 50.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13770178A JPS5563768A (en) | 1978-11-08 | 1978-11-08 | Threshold voltage measuring instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13770178A JPS5563768A (en) | 1978-11-08 | 1978-11-08 | Threshold voltage measuring instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5563768A true JPS5563768A (en) | 1980-05-14 |
Family
ID=15204786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13770178A Pending JPS5563768A (en) | 1978-11-08 | 1978-11-08 | Threshold voltage measuring instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5563768A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6221078A (en) * | 1985-07-19 | 1987-01-29 | Yokogawa Hewlett Packard Ltd | Apparatus for measuring characteristics of circuit element |
JPS63138281A (en) * | 1986-11-29 | 1988-06-10 | Ando Electric Co Ltd | Threshold value measuring instrument |
JPH0511016A (en) * | 1991-07-04 | 1993-01-19 | Sharp Corp | Integrated circuit inspecting device |
JP2011516904A (en) * | 2008-02-11 | 2011-05-26 | クォルコム・メムズ・テクノロジーズ・インコーポレーテッド | Method and apparatus for detection, measurement or characterization of display elements integrated with a display drive mechanism, and systems and applications using the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53125771A (en) * | 1977-04-08 | 1978-11-02 | Toshiba Corp | Measuring unit for semiconductor |
-
1978
- 1978-11-08 JP JP13770178A patent/JPS5563768A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53125771A (en) * | 1977-04-08 | 1978-11-02 | Toshiba Corp | Measuring unit for semiconductor |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6221078A (en) * | 1985-07-19 | 1987-01-29 | Yokogawa Hewlett Packard Ltd | Apparatus for measuring characteristics of circuit element |
JPS63138281A (en) * | 1986-11-29 | 1988-06-10 | Ando Electric Co Ltd | Threshold value measuring instrument |
JPH0511016A (en) * | 1991-07-04 | 1993-01-19 | Sharp Corp | Integrated circuit inspecting device |
JP2011516904A (en) * | 2008-02-11 | 2011-05-26 | クォルコム・メムズ・テクノロジーズ・インコーポレーテッド | Method and apparatus for detection, measurement or characterization of display elements integrated with a display drive mechanism, and systems and applications using the same |
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