公开(公告)号：EP0985222A4

公开(公告)日：2006-04-19

申请号：EP98928822

申请日：1998-05-27

Applicant: CANDESCENT INTELLECTUAL PROP

Inventor： HAVEN DUANE A ,  BARTON ROGER W ,  SPINDT CHRISTOPHER J ,  KNALL N JOHAN ,  OBERG STEPHANIE J

IPC: H01J1/304 ,  H01J31/12 ,  H01J1/30 ,  H01J3/02 ,  H01J3/18 ,  H01J9/02 ,  H01J9/14 ,  H01J19/24 ,  H01J29/46 ,  H01J29/62

CPC classification number: H01J3/022 ,  H01J9/148 ,  H01J29/467

Abstract: An electron-emitting device contains an electron focusing system (37 or 37A) formed with a base focusing structure (38 or 38A) and a focus coating (39 or 39A) that penetrates, preferably only pathway, into a focus opening (40) extending through the base focusing structure. The focus coating, normally of lower resistivity than the base focusing structure, is typically formed by an angled deposition technique. An access conductor (106 or 106A) is preferably electrically coupled to the lower surface of the focus coating. A potential for controlling the focusing of electrons that travel through the focus opening is provided to the focus coating via the access conductor.

公开(公告)号：EP0985220A4

公开(公告)日：2002-11-27

申请号：EP98924767

申请日：1998-05-26

Applicant: CANDESCENT INTELLECTUAL PROP

Inventor： SPINDT CHRISTOPHER J ,  OBERG STEPHANIE J ,  HAVEN DUANE A ,  BARTON ROGER W ,  LEARN ARTHUR J ,  BASCOM VICTORIA A

IPC: H01J3/18 ,  H01J1/304 ,  H01J3/02 ,  H01J9/02 ,  H01J9/50 ,  H01J31/12

CPC classification number: H01J9/025 ,  H01J3/022 ,  H01J2329/00

Abstract: An electron-emitting device utilizes an emitter electrode (12) shaped like a ladder in which a line of emitter openings (18) extend through the electrode. In fabricating the device, the emitter openings can be utilized to self-align certain edges, such as edges (38C) of a focusing system (37), to other edges, such as edges (28C) of control electrodes (28), to obtain desired lateral spacings. The self-alignment is typically achieved with the assistance of a backside photolithographic exposure operation. The ladder shape of the emitter electrode also facilitates the removal of short-circuit defects involving the electrode.

公开(公告)号：EP0966499A4

公开(公告)日：2002-04-10

申请号：EP98911394

申请日：1998-02-27

Applicant: CANDESCENT INTELLECTUAL PROP ,  HEWLETT PACKARD CO

Inventor： PORTER JOHN D ,  CRANE SCOTT J ,  OBERG STEPHANIE J ,  JOHNSON ANTHONY W ,  SPINDT CHRISTOPHER J ,  MACAULAY JOHN M

IPC: C08J3/05 ,  C08J3/09 ,  C08J5/18 ,  C08L69/00 ,  H01J9/02 ,  B05D3/02 ,  B05D3/12 ,  B05D5/00 ,  B05D5/06 ,  H01J9/00

CPC classification number: C08J3/096 ,  C08J3/09 ,  C08J5/18 ,  C08J2369/00 ,  H01J9/025 ,  H01J2329/00

Abstract: A liquid chemical formulation suitable for making a thin solid polycarbonate film contains polycarbonate material and a liquid typically capable of dissolving the polycarbonate to a concentration of at least 1 %. The liquid also typically has a boiling point of at least 80 °C. Examples of the liquid include pyridine, a ring-substituted pyridine derivative, pyrrole, a ring-substituted pyrrole derivative, pyrrolidine, a pyrrolidine derivative, chlorobenzene, and cyclohexanone. A liquid film (36A) of the liquid chemical formulation is formed over a substructure (30) and processed to remove the liquid. In subsequent steps, the resultant solid polycarbonate film can serve as a track layer through which charged particles (70) are passed to form charged-particle tracks (72). Apertures (74) are created through the track layer by a process that entails etching along the tracks. The aperture-containing polycarbonate track layer is typically employed in fabricating a gated electron-emitting device.