摘要:
An apparatus and method for cooling a large-area, pass-through projection mask for excimer ablation. In a preferred embodiment, a laser-transparent window is spaced apart from the projection mask to provide a thermal escape path. The thermal escape path receives a liquid flow which is in direct contact with patterned masking material of the projection mask. The liquid, preferably deionized water, is caused to flow in a laminar fashion. The liquid intersects the laser energy of the excimer laser. In a second embodiment, the liquid flow is along the periphery of the patterned masking material.
摘要:
In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form tapered inkjet orifices. The nozzle member is then mounted to a substrate containing heating elements, each heating element being associated with a single orifice. In a preferred method, the orifices are formed by Excimer laser ablation.In other aspects of the invention, vaporization chambers as well as ink channels, providing fluid communication between an ink reservoir and the orifices, are also formed by Excimer laser ablation.
摘要:
In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form inkjet orifices, ink channels, and vaporization chambers in the unitary nozzle member. The nozzle member is then mounted to a substrate containing heating elements associated with each orifice. In a preferred method, the orifices, ink channels, and vaporization chambers are formed using an Excimer laser.
摘要:
A novel, wide inkjet printhead and method of forming said inkjet printhead is disclosed, wherein a pattern of orifices are formed, using a step-and-repeat process, in a flexible tape using laser ablation or other suitable etching devices. The location of the orifices corresponds to where ink will be ejected from the inkjet printhead. The pattern of orifices may extend to any length without difficulty in aligning the orifices, since the tape may be continuous along the entire length of the printhead.
摘要:
In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form inkjet orifices, ink channels, and vaporization chambers in the unitary nozzle member. The nozzle member is then mounted to a substrate containing heating elements associated with each orifice. In a preferred method, the orifices, ink channels, and vaporization chambers are formed using an Excimer laser.
摘要:
Disclosed is an integral ink jet print head having an improved design. An ink reservoir wall at the base of print head guides a flow of ink from a remote reservoir. Ink is drawn by capillary action past flow restrictors and an ink channel into an ink heating zone. The ink heating zone is a chamber residing below an integrated ink heating structure which has been fabricated, using processes including photolithography, directly on the underside of an orifice plate. An orifice is located to one side of the ink heating zone. The ink heating structure housing the ink heating zone is a combination of thin layers deposited directly on the orifice plate. The multilayered structure includes an insulating layer of silicon dioxide, a resistive layer of tantalum aluminum alloy, and a top conductive layer formed of gold. The invention provides a single integrated print head that combines the separate elements of the previous designs into one unit having many ink jets on one ink jet print head.
摘要:
An electron emitter that includes a metal film having a set of layers that are selected and arranged to adhere the metal film to a remainder of a structure of the electron emitter while avoiding electron loss in the metal film. A multiple layer metal film according to the present techniques enables a balance among adhesion properties, metal diffusion, and oxide properties that might otherwise hinder the performance of an electron emitter.
摘要:
An electron emission device with nano-protrusions is described. Electrons are emitted from the nano-protrusions and directed by one or more conductors into beams. The beams may be shaped to be collimated, diverged, or converged. The shaped beams from one or more nano-protrusions may be focused onto a target spot through the use of additional electron optics.
摘要:
A method is presented for forming pores within a central area of a semi-conductive or conductive surface. The method includes forming a semi-conductive or conductive surface on a substrate. This semi-conductive or conductive surface is formed in a manner ensuring that upon application of an electric field at the semi-conductive or conductive surface an intensity of the electric field at a central area of the surface is at least as great as an intensity of the electric field at a perimeter of the surface. Finally, the method includes anodizing the semi-conductive or conductive surface by generating the electric field at the semi-conductive or conductive surface to form a porous region within the semi-conductive or conductive surface.
摘要:
A process of forming a mandrel for manufacturing inkjet orifice plates and the like includes the steps of providing an electrically-conductive layer on a substrate, providing a pattern of electrically conductive surfaces on the conductive layer, and surface treating the pattern of conductive surfaces to reduce adhesion of a subsequently applied electroplated film to the pattern of conductive surfaces. The mandrel includes a substrate, a pattern of electrically conductive surfaces on the substrate and an oxide layer on the pattern of conductive surfaces for reducing adhesion of an electroplated film to the pattern of conductive surfaces. The pattern of conductive surfaces can be an electro-deposited layer of nickel, and the release means can be a nickel oxide and/or nickel hydroxide film on the layer of nickel.