BE471989A - - Google Patents
Info
- Publication number
- BE471989A BE471989A BE471989DA BE471989A BE 471989 A BE471989 A BE 471989A BE 471989D A BE471989D A BE 471989DA BE 471989 A BE471989 A BE 471989A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P50/00—Etching of wafers, substrates or parts of devices
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8997/41A GB592659A (en) | 1941-07-16 | Improvements in crystal contacts of which one element is germanium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE471989A true BE471989A (en:Method) |
Family
ID=9863366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE471989D BE471989A (en:Method) | 1941-07-16 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2588008A (en:Method) |
| BE (1) | BE471989A (en:Method) |
| CH (1) | CH261491A (en:Method) |
| FR (1) | FR944003A (en:Method) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES207331A1 (es) * | 1952-01-21 | 1953-03-01 | Sogo Kenkyujo Zh Sekitan | Un método de recuperar germanio desde carbones |
| NL93089C (en:Method) * | 1953-02-03 | |||
| DE966879C (de) * | 1953-02-21 | 1957-09-12 | Standard Elektrik Ag | Verfahren zur Reinigung und/oder Abtragung von Halbleitermaterial, insbesondere von Germanium- und Siliziumsubstanz |
| US2809103A (en) * | 1953-11-10 | 1957-10-08 | Sylvania Electric Prod | Fabrication of semiconductor elements |
| DE1157709B (de) * | 1953-12-10 | 1963-11-21 | Siemens Ag | Verfahren zum Herstellen eines Halbleiterbauelementes mit Spitzenkontaktelektroden auf polierter und dann aufgerauhter Oberflaeche des einkristallinen Halbleiterkoerpers |
| US2827369A (en) * | 1953-12-23 | 1958-03-18 | Metallurg De Hoboken Soc Gen | Method of separating germanium from primary materials containing germanium and other, less volatile, elements |
| US2885364A (en) * | 1955-05-31 | 1959-05-05 | Columbia Broadcasting Syst Inc | Method of treating semiconducting materials for electrical devices |
| NL271850A (en:Method) * | 1961-02-03 | |||
| US3102786A (en) * | 1961-06-14 | 1963-09-03 | American Metal Climax Inc | Purification of germanium tetrachloride |
| CH413119A (de) * | 1964-09-22 | 1966-05-15 | Bbc Brown Boveri & Cie | Verfahren zur Herstellung von Halbleitergeräten |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1708571A (en) * | 1925-02-21 | 1929-04-09 | Carborundum Co | Rectifying element |
| GB523216A (en) * | 1938-12-28 | 1940-07-09 | Westinghouse Brake & Signal | Improvements relating to the manufacture of alternating current rectifiers |
| US2402661A (en) * | 1941-03-01 | 1946-06-25 | Bell Telephone Labor Inc | Alternating current rectifier |
| US2402839A (en) * | 1941-03-27 | 1946-06-25 | Bell Telephone Labor Inc | Electrical translating device utilizing silicon |
-
0
- BE BE471989D patent/BE471989A/xx unknown
-
1947
- 1947-03-10 CH CH261491D patent/CH261491A/de unknown
- 1947-03-27 FR FR944003D patent/FR944003A/fr not_active Expired
- 1947-07-29 US US764580A patent/US2588008A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR944003A (fr) | 1949-03-24 |
| CH261491A (de) | 1949-05-15 |
| US2588008A (en) | 1952-03-04 |