JPS5468172A - Diode selector - Google Patents

Diode selector

Info

Publication number
JPS5468172A
JPS5468172A JP13465477A JP13465477A JPS5468172A JP S5468172 A JPS5468172 A JP S5468172A JP 13465477 A JP13465477 A JP 13465477A JP 13465477 A JP13465477 A JP 13465477A JP S5468172 A JPS5468172 A JP S5468172A
Authority
JP
Japan
Prior art keywords
diodes
spare
dropped
control signal
inlet
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
Application number
JP13465477A
Other languages
Japanese (ja)
Inventor
Mutsuyo Kanetani
Kazuhiko Kimura
Hiroyuki Nakajima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13465477A priority Critical patent/JPS5468172A/en
Publication of JPS5468172A publication Critical patent/JPS5468172A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Individual Semiconductor Devices (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)

Abstract

PURPOSE: To perform the selection of high accuracy diodes, by providing the coil constituting the oscillation circuit with the inlet of diodes, detecting the diodes dropped with the change in the oscillated frequency and detecting the agreement of the result of detection with the control signal.
CONSTITUTION: Diodes arranged on the magnet stocker 1 are sequentially fed with the diode handler 2 and the performance measurement is made with the measuring contact 3. With the result of measurement, the control signal is fed, the spare classification tube 4 is revolved for the dropping outlet 7 according to the inlet 8 of the spare classification shelf 5 with the pulse motor 6 and it is set to the predetermined inlet and diodes are dropped. The diodes dropped are detected with the change in the oscillation frequency of the oscillation circuit of the capacitor separately provided with the coil provided internal surface of the spare classifying shelf 8. Further, the frequency change and the control signal are compared and the distribution shutter 9 is opened with the agreement and diodes are contained with a given containing bin 13 through the rotary cylindrical shelf 10.
COPYRIGHT: (C)1979,JPO&Japio
JP13465477A 1977-11-11 1977-11-11 Diode selector Pending JPS5468172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13465477A JPS5468172A (en) 1977-11-11 1977-11-11 Diode selector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13465477A JPS5468172A (en) 1977-11-11 1977-11-11 Diode selector

Publications (1)

Publication Number Publication Date
JPS5468172A true JPS5468172A (en) 1979-06-01

Family

ID=15133418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13465477A Pending JPS5468172A (en) 1977-11-11 1977-11-11 Diode selector

Country Status (1)

Country Link
JP (1) JPS5468172A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6279186U (en) * 1985-11-05 1987-05-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6279186U (en) * 1985-11-05 1987-05-20
JPH051832Y2 (en) * 1985-11-05 1993-01-18

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