JPS5568649A - Automatic sorter for diode pellet - Google Patents
Automatic sorter for diode pelletInfo
- Publication number
- JPS5568649A JPS5568649A JP14230978A JP14230978A JPS5568649A JP S5568649 A JPS5568649 A JP S5568649A JP 14230978 A JP14230978 A JP 14230978A JP 14230978 A JP14230978 A JP 14230978A JP S5568649 A JPS5568649 A JP S5568649A
- Authority
- JP
- Japan
- Prior art keywords
- pellets
- drum
- electrodes
- holder
- attraction
- 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
Links
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
PURPOSE: To sort pellets, by separating them from one another, attracting the pellets on the inside surface of a rotary drum, testing the characteristics of the pellets through electrodes reciprocating on the way of conveyance of the pellets, and selectively releasing the attraction of the pellets depending on the results of the test.
CONSTITUTION: Pellets 6 are supplied to an intermittently rotary drum 7 so that the pellets are attracted one by one on vacuum attraction holes 19 and conveyed upward with the rotation of the drum 7. A holder 10 having numerous electrodes 9 is provided on the way of the conveyance of the pellets. The holder 10 reciprocates cynchronously with the rotation of the drum 7 so that the holder comes nearest to the inside surface of the drum at the time of every stoppage of the drum. At that time, the electrodes 9 are thrusted by a constant spring forces on the pellets 6 attracted on the holes 19. The measurement of characteristics of the pellets is finished while the drum 7 is stopped. The pellets are then transferred to a sorting section. Air is selectively blown in through nozzles 14 and the vaccum attraction of the pellets is released depending on the results of the measurement so that the pellets are sorted down into a box 12 or 13. According to this constitution, the damage of the pellets due to their mutual friction is reduced and the sorting speed is raised.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14230978A JPS5568649A (en) | 1978-11-20 | 1978-11-20 | Automatic sorter for diode pellet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14230978A JPS5568649A (en) | 1978-11-20 | 1978-11-20 | Automatic sorter for diode pellet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5568649A true JPS5568649A (en) | 1980-05-23 |
| JPS6126222B2 JPS6126222B2 (en) | 1986-06-19 |
Family
ID=15312356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14230978A Granted JPS5568649A (en) | 1978-11-20 | 1978-11-20 | Automatic sorter for diode pellet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5568649A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5963435U (en) * | 1982-10-19 | 1984-04-26 | 日本電気株式会社 | Automatic sorting equipment for semiconductor devices |
| JPS60113939A (en) * | 1983-11-25 | 1985-06-20 | Nec Kyushu Ltd | Handling device |
-
1978
- 1978-11-20 JP JP14230978A patent/JPS5568649A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5963435U (en) * | 1982-10-19 | 1984-04-26 | 日本電気株式会社 | Automatic sorting equipment for semiconductor devices |
| JPS6328603Y2 (en) * | 1982-10-19 | 1988-08-02 | ||
| JPS60113939A (en) * | 1983-11-25 | 1985-06-20 | Nec Kyushu Ltd | Handling device |
| JPH0248140B2 (en) * | 1983-11-25 | 1990-10-24 | Kyushu Nippon Electric |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6126222B2 (en) | 1986-06-19 |
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