Claims
- 1. A method of emitting electrons by applying a voltage between a voltage application electrode and a target to be irradiated with the electrons emitted from an electron emission electrode with a conical portion in an electron emission device comprising said electron emission electrode, the voltage application electrode formed to oppose the electron emission electrode so as to sandwich an insulating layer therebetween and the target, wherein a charge of the electron emission electrode which is lost by electron emission during an electron emission operation is supplied after the electron emission operation is completed.
- 2. A method of emitting electrons according to claim 1, wherein the electron emission electrode is supplied with the charge in a pulse form.
- 3. A method of emitting electrons according to claim 2, wherein the electron emission quantity is changed by varying an interval of the pulses.
Priority Claims (10)
Number |
Date |
Country |
Kind |
62-024872 |
Feb 1987 |
JPX |
|
62-024873 |
Feb 1987 |
JPX |
|
62-038075 |
Feb 1987 |
JPX |
|
62-038076 |
Feb 1987 |
JPX |
|
62-047816 |
Mar 1987 |
JPX |
|
62-050344 |
Mar 1987 |
JPX |
|
62-052113 |
Mar 1987 |
JPX |
|
62-067892 |
Mar 1987 |
JPX |
|
62-070467 |
Mar 1987 |
JPX |
|
62-073601 |
Mar 1987 |
JPX |
|
Parent Case Info
This application is a division of application Ser. No. 07/746,154 filed Aug. 14, 1991, which is a continuation of Application Ser. No. 07/463,783, filed on Jan. 8, 1990, abandoned which is a divisional of Application Ser. No. 07/151,961, filed on Feb. 3, 1988, abandoned.
US Referenced Citations (17)
Foreign Referenced Citations (7)
Number |
Date |
Country |
1261911 |
Sep 1989 |
CAX |
0150885 |
Aug 1985 |
EPX |
0172089 |
Feb 1986 |
EPX |
63-239928 |
Oct 1988 |
JPX |
63-239932 |
Oct 1988 |
JPX |
64-42117 |
Feb 1989 |
JPX |
1-187875 |
Jul 1989 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Journal Of Applied Physics, vol. 47, No. 12, Dec. 1976, Spindt, C., et al., "Physical Properties of Thin-Film Field Emission Cathodes With Molybdenum Cones." |
Divisions (2)
|
Number |
Date |
Country |
Parent |
746154 |
Aug 1991 |
|
Parent |
151961 |
Feb 1988 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
463783 |
Jan 1990 |
|