JPS5551366A - Measuring device for transistor power gain characteristic - Google Patents

Measuring device for transistor power gain characteristic

Info

Publication number
JPS5551366A
JPS5551366A JP12595978A JP12595978A JPS5551366A JP S5551366 A JPS5551366 A JP S5551366A JP 12595978 A JP12595978 A JP 12595978A JP 12595978 A JP12595978 A JP 12595978A JP S5551366 A JPS5551366 A JP S5551366A
Authority
JP
Japan
Prior art keywords
preheating
bias current
output
dut
measurement
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.)
Granted
Application number
JP12595978A
Other languages
Japanese (ja)
Other versions
JPS6153664B2 (en
Inventor
Unji Ashizawa
Isao Fujiki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12595978A priority Critical patent/JPS5551366A/en
Publication of JPS5551366A publication Critical patent/JPS5551366A/en
Publication of JPS6153664B2 publication Critical patent/JPS6153664B2/ja
Granted legal-status Critical Current

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Landscapes

  • Testing Of Individual Semiconductor Devices (AREA)

Abstract

PURPOSE: To secure a quick and accurate measurement for the power gain characteristics by giving the preheating via the bias current before measurement.
CONSTITUTION: The measurement is carried out in the order of intial value PG1, the preheating conduction and IAGC. First, the start signal switches change-over switch K211 to (a), and output variable power source 6 gives the initial bias current to DUT5. At that instant, output voltage Voa is referred to as PG1 to be held at sample holding circuit 12. Then switch K211 is opened, and the prescribed preheating current flows to DUT5 from power source 6. After this, source 6 generates the saw-tooth type voltage, and the gain of DUT5 and also output VOC are decreased according to increment of the bias current. Output VOC is then compared with Voa obtained previously through comparator 13. And when the coincidence is obtained through the comparison, output pulse SRB is generated. A comparison is given to the limit value to know in what range the bias current of that time exists. With such preheating, an accurate measurement is possible in a short time.
COPYRIGHT: (C)1980,JPO&Japio
JP12595978A 1978-10-12 1978-10-12 Measuring device for transistor power gain characteristic Granted JPS5551366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12595978A JPS5551366A (en) 1978-10-12 1978-10-12 Measuring device for transistor power gain characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12595978A JPS5551366A (en) 1978-10-12 1978-10-12 Measuring device for transistor power gain characteristic

Publications (2)

Publication Number Publication Date
JPS5551366A true JPS5551366A (en) 1980-04-15
JPS6153664B2 JPS6153664B2 (en) 1986-11-19

Family

ID=14923199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12595978A Granted JPS5551366A (en) 1978-10-12 1978-10-12 Measuring device for transistor power gain characteristic

Country Status (1)

Country Link
JP (1) JPS5551366A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636794U (en) * 1986-06-30 1988-01-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636794U (en) * 1986-06-30 1988-01-18

Also Published As

Publication number Publication date
JPS6153664B2 (en) 1986-11-19

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