BE438468A - - Google Patents
Info
- Publication number
- BE438468A BE438468A BE438468DA BE438468A BE 438468 A BE438468 A BE 438468A BE 438468D A BE438468D A BE 438468DA BE 438468 A BE438468 A BE 438468A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/18—Vacuum locks ; Means for obtaining or maintaining the desired pressure within the vessel
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Sources, Ion Sources (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2266218X | 1939-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE438468A true BE438468A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=7993013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE438468D BE438468A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1939-05-08 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2266218A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
| BE (1) | BE438468A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE474126A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1942-12-01 | |||
| NL263646A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1960-04-16 | |||
| US3299308A (en) * | 1963-07-19 | 1967-01-17 | Temescal Metallurgical Corp | Electron beam traverse of narrow aperture in barrier separating regions of differentpressure |
| US3809899A (en) * | 1972-08-17 | 1974-05-07 | Tektronix Inc | Electron-beam tube including a thermionic-field emission cathode for a scanning electron microscope |
| DE3407050A1 (de) * | 1984-02-27 | 1985-09-05 | Siemens AG, 1000 Berlin und 8000 München | Korpuskelbeschleunigende elektrode |
| US5376799A (en) * | 1993-04-26 | 1994-12-27 | Rj Lee Group, Inc. | Turbo-pumped scanning electron microscope |
-
0
- BE BE438468D patent/BE438468A/xx unknown
-
1940
- 1940-05-13 US US334965A patent/US2266218A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2266218A (en) | 1941-12-16 |