公开(公告)号：DE69828578D1

公开(公告)日：2005-02-17

申请号：DE69828578

申请日：1998-06-26

Applicant: MOTOROLA INC

Inventor： CHALAMALA BABU ,  PACK P ,  ROWELL A

IPC: H01J1/304 ,  H01J1/30

Abstract: An electron emitter (121, 221, 321, 421) includes an electron emitter structure (118) having a passivation layer (120, 220, 320, 420) formed thereon. The passivation layer (120, 220, 320, 420) is made from an oxide selected from a group consisting of the oxides of Ba, Ca, Sr, In, Sc, Ti, Ir, Co, Sr, Y, Zr, Ru, Pd, Sn, Lu, Hf, Re, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Th, and combinations thereof. In the preferred embodiment, the electron emitter structure (118) is made from molybdenum, and the passivation layer (120, 220, 320, 420) is made from an emission-enhancing oxide having a work function that is less than the work function of the molybdenum.

公开(公告)号：DE69821232D1

公开(公告)日：2004-02-26

申请号：DE69821232

申请日：1998-02-06

Applicant: MOTOROLA INC

Inventor： PACK P ,  LUCERO RODOLFO ,  XIE CHENGGANG ,  TRUJILLO JOHANN ,  RUMBAUGH ROB

IPC: H01J29/02 ,  H01J29/86 ,  H01J31/12 ,  H01J1/88

Abstract: A field emission device (100, 200) includes an anode (190); a substrate (110); a plurality of spaced apart cathodes (120); a dielectric layer (124) disposed on the cathodes (120); a plurality of spacer pads (130, 230) disposed on the substrate (110) between adjacent cathodes (120) and including a spacer contact layer (142, 185) that defines the surfaces of the spacer pads (130, 230); a spacer (150) having a first edge (157), a second edge (155), and a conductive layer (152) disposed on the second edge (155), the first edge (157) contacting the anode (190), the conductive layer (152) contacting the spacer contact layer (142, 185) at the spacer pads (130, 230); and an electron emitter (170) disposed within the dielectric layer (124) and spaced apart from the second edge (155) of the spacer (150).

公开(公告)号：DE69828578T2

公开(公告)日：2005-12-29

申请号：DE69828578

申请日：1998-06-26

Applicant: MOTOROLA INC

Inventor： CHALAMALA BABU ,  PACK P ,  ROWELL A

IPC: H01J1/304 ,  H01J1/30

Abstract: An electron emitter (121, 221, 321, 421) includes an electron emitter structure (118) having a passivation layer (120, 220, 320, 420) formed thereon. The passivation layer (120, 220, 320, 420) is made from an oxide selected from a group consisting of the oxides of Ba, Ca, Sr, In, Sc, Ti, Ir, Co, Sr, Y, Zr, Ru, Pd, Sn, Lu, Hf, Re, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Th, and combinations thereof. In the preferred embodiment, the electron emitter structure (118) is made from molybdenum, and the passivation layer (120, 220, 320, 420) is made from an emission-enhancing oxide having a work function that is less than the work function of the molybdenum.

公开(公告)号：DE69821232T2

公开(公告)日：2004-12-02

申请号：DE69821232

申请日：1998-02-06

Applicant: MOTOROLA INC

Inventor： PACK P ,  LUCERO RODOLFO ,  XIE CHENGGANG ,  TRUJILLO JOHANN ,  RUMBAUGH ROB

IPC: H01J29/02 ,  H01J29/86 ,  H01J31/12 ,  H01J1/88

Abstract: A field emission device (100, 200) includes an anode (190); a substrate (110); a plurality of spaced apart cathodes (120); a dielectric layer (124) disposed on the cathodes (120); a plurality of spacer pads (130, 230) disposed on the substrate (110) between adjacent cathodes (120) and including a spacer contact layer (142, 185) that defines the surfaces of the spacer pads (130, 230); a spacer (150) having a first edge (157), a second edge (155), and a conductive layer (152) disposed on the second edge (155), the first edge (157) contacting the anode (190), the conductive layer (152) contacting the spacer contact layer (142, 185) at the spacer pads (130, 230); and an electron emitter (170) disposed within the dielectric layer (124) and spaced apart from the second edge (155) of the spacer (150).