Abstract: The invention provides a micro-fluidic device that includes a pre-loaded sample that begins to flow only when a sample is provided in the device. In certain embodiments, the invention provides a micro-fluidic device including at least two paper flow path layers providing fluid flow in substantially parallel planar directions, and at least one valve positioned between the at least two paper flow paths, wherein the at least one valve for providing flow in a direction that is orthogonal to the substantially planar directions.

Abstract: A microfluidic valve system is disclosed that includes a matrix, a hydrophilic acceptor region a hydrophilic transfer region, and a hydrophobic gap between the acceptor region and the transfer region.

Abstract: A microfluidic valve system is disclosed that includes a matrix, a hydrophilic acceptor region a hydrophilic transfer region, and a hydrophobic gap between the acceptor region and the transfer region.

Abstract: A microfluidic valve system is disclosed that includes a matrix, a hydrophilic acceptor region a hydrophilic transfer region, and a hydrophobic gap between the acceptor region and the transfer region.

Abstract: The invention provides a micro-fluidic device that includes a pre-loaded sample that begins to flow only when a sample is provided in the device. In certain embodiments, the invention provides a micro-fluidic device including at least two paper flow path layers providing fluid flow in substantially parallel planar directions, and at least one valve positioned between the at least two paper flow paths, wherein the at least one valve for providing flow in a direction that is orthogonal to the substantially planar directions.

Abstract: A printhead and a method of manufacturing a printhead are provided. The printhead includes a polymeric substrate including a surface. Portions of the polymeric substrate define a liquid chamber. A material layer is disposed on the surface of the polymeric substrate. Portions of the material layer define a nozzle bore. The nozzle bore is in fluid communication with the liquid chamber.

Abstract: A method of manufacturing a printhead includes providing a polymeric substrate having a surface; providing a patterned material layer on the surface of the polymeric substrate; and removing at least some of the polymeric substrate not covered by the patterned material layer using an etching process.

Abstract: A continuous stream ink jet printer is provided having an ink droplet forming mechanism for ejecting a stream of ink droplets having a selected one of at least two different volumes toward a print medium and a droplet deflector and ink conduit which are integrally formed to the printhead for producing a flow of gas that interacts with the ink droplet stream to separate droplets having different volumes and collects all droplets not used for printing.

Abstract: PROBLEM TO BE SOLVED: To enhance ink ejection efficiency by deforming a diaphragm, constituting a part of an ink carrying path communicating with a nozzle at the forward end, gradually toward the nozzle from the rear of the ink carrying path thereby producing an unidirectional ink flow. SOLUTION: A diaphragm 55 constituting a part of an ink carrying path 51 communicating with a nozzle 54 and an electrode 72 facing the diaphragm are divided, between an ink supply chamber 52 and the nozzle 54, into a plurality of individual electrodes 72a-72c which are connected with a head ejection drive section 105 through respective terminals 74. The diaphragm 55 is displaced from the rear side by applying a voltage sequentially, at a constant time interval, to the individual electrodes 72a-72c starting from the rear electrode 72c close to the ink supply chamber 52.

Abstract: Disclosed is a process for imaging a media for receiving jetted ink, comprising a support bearing a predetermined array of three dimensional cells composed of hydrophobic cell walls and having a hydrophilic base, the cell walls being composed of a material that fused subsequent to printing to provide an overcoat layer.

Abstract: The present invention is related to a method for producing micromachined devices for use in Microelectromechanical Systems (MEMS), comprising the steps of providing a crystalline wafer, and processing from said wafer at least one micromachined device comprising at least one elongated opening and/or cavity, having a longitudinal axis, so that said longitudinal axis is at an angle to a direction which lies along the intersection of the front plane of the wafer and a cleavage plane, said cleavage plane being defined as a plane along which cleavage of the wafer is most likely to occur.

Abstract: The present invention is related to a method for producing micromachined devices for use in Microelectromechanical Systems (MEMS), comprising the steps of providing a crystalline wafer, and processing from said wafer at least one micromachined device comprising at least one elongated opening and/or cavity, having a longitudinal axis, so that said longitudinal axis is at an angle to a direction which lies along the intersection of the front plane of the wafer and a cleavage plane, said cleavage plane being defined as a plane along which cleavage of the wafer is most likely to occur.

Abstract: A virtual phase CCD is fabricated in a semiconductor substrate of n-type conductivity having a layer of silicon dioxide on a surface by first forming a channel region by the implantation of boron ions. Masking regions of polycrystalline silicon are then formed on the silicon dioxide over and spaced along the channel region. Boron ions are then implanted into the substrate between the masking regions. The size of the masking regions are then increased by the addition of portions of a first photoresist layer to decrease the spacing along the channel region between the masking regions. Arsenic ions are then implanted into the channel region between the masking regions to form virtual gate regions along the surface of the channel reigon. Boron ions are then implanted into the substrate between the masking regions. The size of the masking regions is then further increased by the addition of a second photoresist layer to further decrease the spacing between the masking regions along the channel region.

Abstract: A CCD image sensor has a plurality of elements, each such sensing element includes a doped semiconductor substrate, an insulator layer over the semiconductor substrate, and an electrode on the insulator layer which when potential is applied to the electrode creates a well in the bulk of the substrate which collects charge as a result of a photoelectric process. The insulator layer has a thin portion selected so as to allow excess charge collected in the channel to tunnel through the thin region to the electrode and thereby prevent blooming.