JPS52137267A - Sorting method for transistors and its device - Google Patents
Sorting method for transistors and its deviceInfo
- Publication number
- JPS52137267A JPS52137267A JP5326476A JP5326476A JPS52137267A JP S52137267 A JPS52137267 A JP S52137267A JP 5326476 A JP5326476 A JP 5326476A JP 5326476 A JP5326476 A JP 5326476A JP S52137267 A JPS52137267 A JP S52137267A
- Authority
- JP
- Japan
- Prior art keywords
- transistors
- sorting method
- unacceptable
- pellet
- sorting
- 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
- Paints Or Removers (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
PURPOSE: To permit easy sorting and thereby improve workability by coating a marking agent for magnetic sorting on an unacceptable pellet, curing the agent by the irradiation of ultraviolet rays followed by dicing and removing only the unacceptable pellet by means of a magnet.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5326476A JPS52137267A (en) | 1976-05-12 | 1976-05-12 | Sorting method for transistors and its device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5326476A JPS52137267A (en) | 1976-05-12 | 1976-05-12 | Sorting method for transistors and its device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52137267A true JPS52137267A (en) | 1977-11-16 |
JPS5412392B2 JPS5412392B2 (en) | 1979-05-22 |
Family
ID=12937899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5326476A Granted JPS52137267A (en) | 1976-05-12 | 1976-05-12 | Sorting method for transistors and its device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52137267A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55103736A (en) * | 1979-02-01 | 1980-08-08 | Toshiba Corp | Hardening method of proving ink for semiconductor wafer |
JPS6224637A (en) * | 1985-07-24 | 1987-02-02 | Matsushita Electronics Corp | Wafer making |
-
1976
- 1976-05-12 JP JP5326476A patent/JPS52137267A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55103736A (en) * | 1979-02-01 | 1980-08-08 | Toshiba Corp | Hardening method of proving ink for semiconductor wafer |
JPS628937B2 (en) * | 1979-02-01 | 1987-02-25 | Tokyo Shibaura Electric Co | |
JPS6224637A (en) * | 1985-07-24 | 1987-02-02 | Matsushita Electronics Corp | Wafer making |
Also Published As
Publication number | Publication date |
---|---|
JPS5412392B2 (en) | 1979-05-22 |
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