FR66848E - Improvements to dry straighteners - Google Patents
Improvements to dry straightenersInfo
- Publication number
- FR66848E FR66848E FR66848DA FR66848E FR 66848 E FR66848 E FR 66848E FR 66848D A FR66848D A FR 66848DA FR 66848 E FR66848 E FR 66848E
- Authority
- FR
- France
- Prior art keywords
- straighteners
- dry
- dry straighteners
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
- H01L21/14—Treatment of the complete device, e.g. by electroforming to form a barrier
- H01L21/145—Ageing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
- H01L21/12—Application of an electrode to the exposed surface of the selenium or tellurium after the selenium or tellurium has been applied to the foundation plate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
- H01L21/14—Treatment of the complete device, e.g. by electroforming to form a barrier
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Gerontology & Geriatric Medicine (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3121649A GB683817A (en) | 1949-12-05 | 1949-12-05 | Improvements in or relating to dry contact rectifiers |
GB25094/51A GB702620A (en) | 1951-10-26 | 1951-10-26 | Improvements in or relating to dry contact rectifiers |
DES35730A DE975679C (en) | 1953-10-02 | 1953-10-02 | Process for the manufacture of selenium rectifiers |
Publications (1)
Publication Number | Publication Date |
---|---|
FR66848E true FR66848E (en) | 1957-09-10 |
Family
ID=27212568
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR66848D Expired FR66848E (en) | 1949-12-05 | 1954-10-01 | Improvements to dry straighteners |
FR67184D Expired FR67184E (en) | 1949-12-05 | 1954-10-08 | Improvements to dry straighteners |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR67184D Expired FR67184E (en) | 1949-12-05 | 1954-10-08 | Improvements to dry straighteners |
Country Status (1)
Country | Link |
---|---|
FR (2) | FR66848E (en) |
-
1954
- 1954-10-01 FR FR66848D patent/FR66848E/en not_active Expired
- 1954-10-08 FR FR67184D patent/FR67184E/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR67184E (en) | 1957-11-25 |
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