公开(公告)号：JPH11340582A

公开(公告)日：1999-12-10

申请号：JP12519899

申请日：1999-04-30

Applicant: XEROX CORP

Inventor： FLOYD PHILIP D ,  HOFSTETTER DANIEL

IPC: H01L33/00 ,  H01S5/00 ,  H01S5/02 ,  H01S5/183 ,  H01S5/22 ,  H01S5/323 ,  H01S5/343 ,  H01S3/18

Abstract: PROBLEM TO BE SOLVED: To provide a structure of a monolithic vertical cavity surface-emitting laser which emits spectral light of wavelength in the range of 390 to 430 nm (blue range) and is independently addressable. SOLUTION: In a laser structure 200 being composed almost exclusively of gallium nitride, a laser heterostructure 230 is formed on a terminal 216 of an n-GaN layer 210. Laser is emitted from a quantum well active layer 222. The n-GaN layer 210 is grown epitaxially laterally on a DBR 206 and since this is a region with few crystal defects, a blue spectral vertical cavity surface H emitting laser can be emitted with high efficiency to be emitted.

公开(公告)号：JP2000108400A

公开(公告)日：2000-04-18

申请号：JP26933499

申请日：1999-09-22

Applicant: XEROX CORP

Inventor： PEETERS ERIC ,  NOOLANDI JAAN ,  APTE RAJ B ,  FLOYD PHILIP D ,  SMALL JONATHAN A ,  KOVACS GREGORY J ,  LEAN MENG H ,  VOLKEL ARMIN R ,  BOLTE STEVEN B ,  SHI AN-CHANG ,  ENDICOTT FREDERICK J ,  ANDERSON GREGORY B ,  HAYS DAN A ,  KUBBY JOEL A ,  JACKSON WARREN B ,  KAREN A MOFFAT ,  MCANENEY BRIAN T ,  VEREGIN RICHARD P N ,  MCDOUGALL MARIA N V ,  BOILS DANIELLE C ,  PAUL D SZABO ,  ANDREW A BERLIN ,  G A NAVIL CONELL

IPC: B41J2/385 ,  B41J2/01 ,  B41J2/14 ,  B41J2/21

Abstract: PROBLEM TO BE SOLVED: To provide a print head capable of high quality and high speed print ing. SOLUTION: There is disclosed a print head 34 used in a printer. In the print head 34, a propelling medium flows in a fluid passage toward a printing medium 38 and a printing material such as ink or toner is controlled to be introduced into the propelling medium flow such that sufficient energy for moving to the printing medium 38 is supplied to the them. A plurality of fluid passages for directing the propelling medium flow and printing material enable high quality and high resolution printing. The plurality of printing materials are introduced into the passage to be mixed in the fluid passage before printing on the printing medium 38. The printing materials are mixed and superposed on the printing medium 38 without executing aligning of a registor. One embodiment of a full-color printer having a single fluid passage is disclosed.

公开(公告)号：JP2000108339A

公开(公告)日：2000-04-18

申请号：JP26928899

申请日：1999-09-22

Applicant: XEROX CORP

Inventor： PEETERS ERIC ,  NOOLANDI JAAN ,  APTE RAJ B ,  FLOYD PHILIP D ,  LEAN MENG H ,  VOLKEL ARMIN R

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/14

Abstract: PROBLEM TO BE SOLVED: To provide a print head for high quality high speed printing. SOLUTION: In a print head 34 for printer, propellant flows through a channel toward a material 38 to be printed and a printing substance, e.g. ink or toner, is introduced into the propellant while being regulated and kinetic energy sufficient for reaching the material 38 to be printed is imparted to the printing substance. High speed high resolution printing is realized by means of a plurality of channels for directing the propellant and the printing substance. Before being introduced the channel and printed onto the material 38 to be printed, a plurality of printing substances are not mixed in the channel or registered again but mixed or superposed on the material 38 to be printed.

公开(公告)号：JPH10163194A

公开(公告)日：1998-06-19

申请号：JP32327697

申请日：1997-11-25

Applicant: XEROX CORP

Inventor： SUN DECAI ,  FLOYD PHILIP D

IPC: H01L21/18 ,  H01L21/316 ,  H01L33/00 ,  H01S5/183 ,  H01S5/20 ,  H01S5/22 ,  H01S5/32

Abstract: PROBLEM TO BE SOLVED: To demarcate the boundary of an oxidation area parallel to a substrate and demarcate and control the area to be oxidated of a semiconductor hetero structure, by arranging an AlAs layer between two AlGaAs layers poor in aluminum content. SOLUTION: After sticking of an AlGaA layer 102, a layer rich in aluminum content such as an AlAs layer 104 is made. This AlAs layer 104 has silicon doping of generally 5×10 cm or larger than this, and this gives an impurity source for irregularization of the layer. Here, the AlAS layer 104 is used, but an AlGaAs layer richer in aluminum content than the aluminum content of adjacent AlGaAs layers 102 and 106 can also be used. Generally, molar fraction of about 90% or larger than that is used to the layer rich in aluminum content.