公开(公告)号：MXPA02000664A

公开(公告)日：2002-07-02

申请号：MXPA02000664

申请日：2000-06-21

Applicant: EXTREME DEVICES INC

Inventor： GORSKI RICH

IPC: H01J9/44 ,  H01J1/304 ,  H01J3/02 ,  H01J3/18 ,  H01J9/02 ,  H01J29/04

Abstract: Un canon de electrones compacto incluye un catodo (12) de emision por efecto de campo, un electrodo (18) tipo Pierce, una capa (14) de compuerta, una capa (16) de lente convergente, una lente (20) convergente, y un embudo (22) de convergencia.

公开(公告)号：DE69709817D1

公开(公告)日：2002-02-28

申请号：DE69709817

申请日：1997-09-29

Applicant: NEC CORP

Inventor： MAKISHIMA HIDEO

IPC: H01J1/304 ,  H01J3/02 ,  H01J23/06 ,  H01J3/18 ,  H01J1/30

Abstract: In a field emission cathode type electron gun, a plurality of cathode segments and a plurality of gate control circuits (5-1, 5'-1) are provided. Each of the gate control circuits is connected to one of the cathode segments. Each of the cathode segments includes a cathode electrode, a gate electrode (14-1, 14-2, ...), an insulating layer therebetween, and a plurality of cone-shaped emitters (15) formed within openings perforated in the gate electrode and the insulating layer. Each of the gate control circuits detects a current flowing through one of the cathode segments and controlling a voltage of the gate electrode of the respective cathode segments in accordance with the detected current, so that the detected current is brought close to a definite value.

公开(公告)号：DE10114353A1

公开(公告)日：2002-01-10

申请号：DE10114353

申请日：2001-03-22

Applicant: LG ELECTRONICS INC

Inventor： TOMII KAORU

IPC: H01J29/04 ,  H01J1/30 ,  H01J1/304 ,  H01J3/02 ,  H01J3/18 ,  H01J29/48

Abstract: The present invention relates to a field emission type cold cathode structure and an electron gun using the cathode which is capable of preventing electron emission error due to impurities etc. by emitting the electron with the field, the present invention comprises a fusible metal layer formed between a base electrode and each emitter chip, a focus electrode formed on the upper portion of a gate electrode with an insulating layer between them, and a control electrode formed on the upper portion of a focus electrode with an insulating layer between them, accordingly the present invention can reduce power for heating the cathode, display data and a picture instantly on a screen, simplify a structure of an electron lens etc. focusing an electron beam, and improving precision in electron gun assembly.

公开(公告)号：SG83687A1

公开(公告)日：2001-10-16

申请号：SG1998003685

申请日：1998-09-17

Applicant: MITSUI CHEMICALS INC

Inventor： TSUYOSHI FUJIMOTO ,  YUMI NAITO ,  ATSUSHI OKUBO ,  YOSHIKAZU YAMADA

IPC: H01L33/00 ,  H01S5/20 ,  H01S5/22 ,  H01S5/223 ,  H01S5/343 ,  H01J3/18

Abstract: In a self-aligned structure semiconductor laser in which a pair of optical guide layers (23, 28) are respectively formed on both faces of an active layer (25), the optical guide layers having a bandgap which is wider than that of the active layer (25), a pair of cladding layers (22, 29) are formed so as to sandwich the active layer (25) and the optical guide layers (23, 28), the cladding layers having a bandgap which is wider than bandgap of the optical guide layers (23, 28), a pair of carrier blocking layers (24, 26) are respectively formed between the active layer (25) and the optical guide layers (23, 28), the carrier blocking layers having a bandgap which is wider than bandgaps of the active layer (25) and the optical guide layers (23, 28), and a current blocking layer (27) having a stripe-like window is embedded in at least one of the optical guide layers (23, 28), the current blocking layer (27) is formed by selective growth. In this way, a window of a current blocking layer can be accurately formed and the fabrication yield can be improved while avoiding maleffects on other layers.

公开(公告)号：ID29277A

公开(公告)日：2001-08-16

申请号：ID20002296

申请日：2000-03-08

Applicant: MATSUSHITA ELECTRIC IND CO LTD

Inventor： WADA NAOKI ,  NORIKANE TETSUYA ,  NAKAI TADASHI

IPC: H01J1/304 ,  H01J3/18 ,  H01J9/02 ,  H01L27/04 ,  H01J21/16

Abstract: A field emission device (FED) comprising an amorphous substrate; impurity diffusion preventing layer; FET formed on a formation surface of a semiconductor layer made of amorphous silicon or polycrystalline silicon; one or more emitters made by etching the semiconductor layer of the FET drain region; and extraction electrode. The semiconductor layer is made by CVD process. The emitter array is formed within a ring or polygonal FET drain region, and surrounded by the ring or polygonal gate electrode and source electrode. The entire FET region is covered with an insulation layer and metal layer. This configuration provides uniform current emission characteristics among emitter chips, and achieves uniform electron emissions to all directions. Application of present FED to a flat panel display device achieves high picture quality, low power consumption, and low manufacturing cost.

公开(公告)号：GB0107108D0

公开(公告)日：2001-05-09

申请号：GB0107108

申请日：2001-03-21

Applicant: LG ELECTRONICS INC

IPC: H01J29/04 ,  H01J1/30 ,  H01J1/304 ,  H01J3/02 ,  H01J3/18

Abstract: The present invention relates to a field emission type cold cathode structure and an electron gun using the cathode which is capable of preventing electron emission error due to impurities etc. by emitting the electron with the field, the present invention comprises a fusible metal layer formed between a base electrode and each emitter chip, a focus electrode formed on the upper portion of a gate electrode with an insulating layer between them, and a control electrode formed on the upper portion of a focus electrode with an insulating layer between them, accordingly the present invention can reduce power for heating the cathode, display data and a picture instantly on a screen, simplify a structure of an electron lens etc. focusing an electron beam, and improving precision in electron gun assembly.

公开(公告)号：CA2384506A1

公开(公告)日：2001-01-25

申请号：CA2384506

申请日：2000-06-21

Applicant: EXTREME DEVICES INC

Inventor： JAMISON KEITH D ,  GORSKI RICH

IPC: H01J9/44 ,  H01J1/304 ,  H01J3/02 ,  H01J3/18 ,  H01J9/02 ,  H01J29/04

Abstract: A compact electron gun includes a field emission cathode (12), a Pierce-like electrode (18), a gate layer (14), a focus lens layer (16), a focus lens (20 ), and a convergence cup (22).

公开(公告)号：FR2758905B1

公开(公告)日：1999-08-13

申请号：FR9800888

申请日：1998-01-28

Applicant: FUTABA DENSHI KOGYO KK

Inventor： ITOH SHIGEO ,  MAKITA YOSHIO ,  HONDA KENICHI ,  YAMAURA TATSUO

IPC: H01J29/87 ,  H01J1/52 ,  H01J3/18 ,  H01J5/03 ,  H01J7/18 ,  H01J29/02 ,  H01J29/06 ,  H01J29/62 ,  H01J29/82 ,  H01J29/94 ,  H01J31/12 ,  H01J1/88

公开(公告)号：FR2769751A1

公开(公告)日：1999-04-16

申请号：FR9712826

申请日：1997-10-14

Applicant: COMMISSARIAT ENERGIE ATOMIQUE

Inventor： PERRIN AIME ,  MONTMAYEUL BRIGITTE ,  MEYER ROBERT

IPC: H01J3/18 ,  H01J1/304 ,  H01J3/02 ,  H01J9/02 ,  H01J9/14 ,  H01J29/04 ,  H01J29/62 ,  H01J31/12 ,  H01J1/30

Abstract: The upper focussing layer is set back from the extraction layer with a series of curved formations providing good focussing.

公开(公告)号：DE69407015D1

公开(公告)日：1998-01-08

申请号：DE69407015

申请日：1994-09-20

Applicant: HEWLETT PACKARD CO

Inventor： KUO HUEI-PEI

IPC: H01J3/18 ,  H01J1/304 ,  H01J3/02 ,  H01J3/30 ,  H01J29/62 ,  H01J29/74 ,  H01J31/12 ,  H01J21/20

Abstract: Apparatus (100) and methods of focusing and to steering a group of electrons emitted from an electron source (112) to a shield (102). In a preferred embodiment, the apparatus (100) includes an electron source controlled by one or more voltages to emit electrons, a first electrode (114) adjacent to one side of the source (112), and a second electrode (108), insulated from the first electrode (114), adjacent to an opposite side of the source (112). The shield (102) has a shield voltage. The first (114) and the second (108) electrode have a first and a second voltage respectively to focus and steer a substantial portion of the emitted electrons towards the shield (102). One application of the present invention is in the area of flat panel displays with the shield (102) being a screen.