1. An image forming apparatus comprising:
a source document feed platform for holding a source document that is fed automatically;
a source document ejection platform for holding a source document fed from said source document feed platform and ejected, positioned below said source document feed platform;
a sheet ejection platform for holding a printed sheet on which an image of said source document has been formed and that is ejected onto an uppermost part of an apparatus main body, positioned above said source document feed platform; and
a source document ejection section that ejects a source document onto said source document ejection platform so that an ejection direction downstream edge of said source document ejected onto said source document ejection platform faces an ejection direction downstream-side position of said source document ejection platform rather than a source document feeding direction upstream edge of said source document feed platform.
2. The image forming apparatus according to claim 1, wherein an ejection direction downstream edge of a printed sheet placed on said sheet ejection platform and an ejection direction downstream edge of a source document placed on said source document ejection platform are ejected so as to be mutually positionally displaced in an ejection direction.
3. The image forming apparatus according to claim 1, wherein said printed sheet placed on said sheet ejection platform and a source document placed on said source document ejection platform are ejected so as to be mutually positionally displaced in a direction orthogonal to an ejection direction.
4. The image forming apparatus according to claim 1, wherein said source document feed platform is displaced upward.
5. The image forming apparatus according to claim 1, wherein:
said source document ejection platform has a curved section that causes an ejection direction downstream edge of a source document ejected onto said source document ejection platform to be curved upward; and
said source document feed platform and said sheet ejection platform are provided with a cutaway section at a position opposite said curved section in a vertical direction.
6. An image forming apparatus comprising:
a source document feed platform for holding a source document;
a source document ejection platform for holding a source document fed from said source document feed platform and ejected, positioned above said source document feed platform; and
a sheet ejection platform for holding a printed sheet on which an image of said source document has been formed and that is ejected onto an uppermost part of an apparatus main body, positioned above said source document feed platform;
wherein a source document placed on said source document ejection platform and said printed sheet placed on said sheet ejection platform are ejected so that their respective front and rear sides are opposite.
7. The image forming apparatus according to claim 6, wherein an ejection direction downstream edge of a printed sheet placed on said sheet ejection platform and an ejection direction downstream edge of a source document placed on said source document ejection platform are ejected so as to be mutually positionally displaced in an ejection direction.
8. The image forming apparatus according to claim 6, wherein an ejection direction downstream edge of said printed sheet placed on said sheet ejection platform and an ejection direction downstream edge of a source document placed on said source document ejection platform are ejected so as to be mutually positionally displaced in an a direction orthogonal to an ejection direction.
9. The image forming apparatus according to claim 6, wherein said source document feed platform is displaced upward.
10. The image forming apparatus according to claim 6, wherein:
said source document ejection platform has a curved section that causes an ejection direction downstream edge of a source document ejected onto said source document ejection platform to be curved upward; and
said source document feed platform and said sheet ejection platform are provided with a cutaway section at a position opposite said curved section in a vertical direction.
11. An automatic document feeder positioned on a top part of a main body of an image forming apparatus provided with an image forming section that performs image forming on a sheet based on source document image information, said automatic document feeder comprising:
a source document feed platform for holding said source document;
a source document feeding section that feeds said source document placed on said source document feed platform;
a source document reading section that reads image information of said source document fed by said source document feeding section;
a source document ejection section that ejects said source document from which said image information has been read by said source document reading section;
a source document ejection platform for holding said source document ejected by said source document ejection section, positioned below said source document feed platform;
a sheet ejection section that transports to above said source document feed platform and ejects a printed sheet on which image forming has been performed by said image forming section; and
a sheet ejection platform for holding said printed sheet ejected by said sheet ejection section, positioned above said source document feed platform;
wherein said source document ejection section ejects a source document onto said source document ejection platform so that an ejection direction downstream edge of said source document ejected onto said source document ejection platform faces an ejection direction downstream-side position of said source document ejection platform rather than a source document feeding direction upstream edge of said source document feed platform.
12. An automatic document feeder positioned on a top part of a main body of an image forming apparatus provided with an image forming section that performs image forming on a sheet based on source document image information, said automatic document feeder comprising:
a source document feed platform for holding said source document;
a source document feeding section that feeds said source document placed on said source document feed platform;
a source document reading section that reads image information of said source document fed by said source document feeding section;
a source document reverse ejection section that takes said source document from which said image information has been read by said source document reading section as a source document and ejects that source document with front and rear sides reversed;
a source document ejection platform for holding said source document ejected by said source document reverse ejection section, positioned above said source document feed platform;
a sheet ejection section that transports to above said source document feed platform and ejects a printed sheet on which image forming has been performed by said image forming section; and
a sheet ejection platform for holding said printed sheet ejected by said sheet ejection section, positioned above said source document feed platform.
13. An image forming apparatus comprising:
a source document feed platform for holding a source document that is fed automatically;
a source document ejection platform for holding a source document fed from said source document feed platform and ejected, positioned below said source document feed platform;
a sheet ejection platform for holding a printed sheet on which an image of said source document has been formed and that is ejected onto an uppermost part of an apparatus main body, positioned above said source document feed platform; and
a source document ejection section that ejects said source document onto said source document ejection platform;
wherein cutaway sections of said source document feed platform and said sheet ejection platform are provided at positions vertically opposite part of a peripheral part of a source document placed on said source document ejection platform.
14. An image forming apparatus comprising:
a source document feed platform for holding a source document that is fed automatically;
a source document ejection platform for holding a source document ejected from said source document feed platform; and
a sheet ejection platform for holding a printed sheet on which an image of said source document has been formed, said source document feed platform, source document ejection platform and sheet ejection platform being provided along a vertical line,
wherein an interval between the source document ejection platform and the sheet ejection platform is set in a dimension that enables a user to use one hand and hold the source document placed in the source document ejection platform and the printed sheet placed in the sheet ejection platform together between fingers of said one hand; and
wherein cutaway sections are provided in mutually vertically opposite areas in the source document ejection platform and the sheet ejection platform to allow entry of the fingers of the user, so as to enable the user to use one hand and hold the source document placed in the source document ejection platform and the printed sheet placed in the sheet ejection platform in a state in which the two documents overlie upon one another in said one hand of the user.
15. The image forming apparatus according to claim 14, wherein at least one of the cutaway sections is made by cutting away a part of the source document ejection platform or the sheet ejection platform.
16. The image forming apparatus of claim 14, wherein at least one of the source document ejection platform and the sheet ejection platform comprises two adjoining planes that form at least one of the cutaway sections.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for fabricating a silicon (Si) nanotip electroluminescence (EL) diode, the method comprising:
forming a plurality of Si nanotip diodes, where each nanotip diode is pn junction nanotip structure, as follows:
forming a reactive ion etching (RIE)-induced polymer grass overlying a top surface of the substrate;
using the RIE-induced polymer grass as a mask, etching areas of the substrate not covered by the mask as follows:
etching using SF6 and C4F8 chemistries;
etching exposed portions of a Si n+ layer; and
exposing regions of the underlying Si p-well; and
forming the nanotip diodes in areas of the substrate covered by the mask;
forming a Si oxide phosphor layer overlying the nanotip diodes as follows:
following the exposure of underlying regions of the p-well, removing the remaining RIE-induced polymer grass, exposing n+ Si regions;
thermally oxidizing the exposed n+ and exposed p-well Si regions;
growing 1 to 5 nanometers (nm) of silicon oxide; and
depositing silicon oxide overlying the thermally grown silicon oxide; and
forming a top electrode overlying the Si phosphor layer.
2. The method of claim 1 wherein forming the nanotip diodes includes:
prior to forming the RIE-induced polymer grass, forming a Si p-well; and,
forming an n+ layer of Si, having a thickness in the range of 30 to 300 nanometers (nm), overlying the Si p-well as follows:
doping the Si substrate with a density in the range of 1\xd71016 to 1\xd71018 per cubic centimeter (cm3); and
implanting an ion selected from the group including phosphorus and arsenic at an energy in the range of 20 keV to 100 keV.
3. The method of claim 2 wherein forming the RIE-induced polymer grass includes:
introducing a mixture of oxygen and carbon tetrafluoride;
exciting the mixture using a radio frequency (RF); and
etching the Si substrate for a time in the range of 10 seconds to 5 minutes.
4. The method of claim 1 wherein exposing regions of the underlying p-well includes etching into the p-well a depth greater than about 2 nanometers (nm).
5. The method of claim 1 wherein forming the phosphor layer includes forming a rare earth element-doped insulator where the rare earth is selected from the group including erbium (Er), ytterbium (Yb), cerium (Ce), praseodymium (Pr), and terbium (Tb), and the insulator is a material selected from the group including Si oxide and Si nitride.
6. The method of claim 5 wherein forming the phosphor layer includes:
depositing an insulator with a ram earth doping density in the range of 1 at % (atomic weight %) to 5 at %; and
thermal annealing at a temperature in the range of 600\xb0 C. to 1200\xb0 C. for a time in the range of 10 to 200 minutes.
7. The method of claim 1 wherein forming nanotip diodes includes forming nanotip diodes with ends; and
the method further comprising:
following the forming of the phosphor layer, chemical-mechanical polishing (CMPing) the phosphor layer, exposing the nanotip diode ends.
8. The method of claim 1 wherein forming the top electrode includes forming a top electrode from a material selected from the group including indium tin oxide (ITO), Zinc oxyfluoride, and conductive plastics.
9. The method of claim 1 wherein forming nanotip diodes includes forming nanotip diodes having a base size of about 50 nanometers, or less.
10. The method of claim 1 wherein forming the nanotip diodes includes forming nanotip diodes having a height in the range of 50 to 500 nm.
11. The method of claim 1 wherein forming the nanotip diodes includes forming nanotip diodes having a density of greater than 100 per square micrometer.
12. The method of claim 1 wherein forming the plurality of Si nanotip diodes includes forming a plurality of isolated regions, each region including a plurality of nanotip diodes;
wherein forming the phosphor layer overlying the nanotip diodes includes forming a phosphor layer legion overlying each region of nanotip diodes; and
wherein forming a top electrode overlying the phosphor layer includes forming an isolated top electrode overlying each phosphor layer region.