Abstract:
A printed mask derived from a composition comprised of at least one compound including at least one alkaline-hydrolyzable group, and at least one compound including at least one ethylene oxide group. The printed mask is removable using an alkaline solution in about 30 seconds or less.
Abstract:
A method of forming a pattern includes forming a first layer on a substrate, forming a second layer on the first layer, depositing a multi-temperature phase-change material on the second layer, patterning the second layer using the multi-temperature phase-change material as a mask, reflowing the multi-temperature phase-change material, and patterning the first layer using the reflowed multi-temperature phase-change material as a mask.
Abstract:
A method of forming a fluid ejector includes forming a recess well into a silicon wafer on a first side of the silicon wafer, and filling the recess well with a sacrificial material. A thin layer structure is deposited onto the first side of a silicon wafer covering the filled recess well. Then a thin film piezoelectric is bonded or deposited to the thin layer structure, and a hole is formed in the thin layer structure exposing at least a portion of the sacrificial material. The sacrificial material is removed from the recess well, wherein the hole in the thin layer in the recess well with the sacrificial material removed, form a fluid inlet. An opening area in the silicon wafer is formed on a second side of the silicon wafer. Then a nozzle plate is formed having a recess portion and an aperture within the recess portion. The nozzle plate is attached to the second side of the silicon wafer, with the recess portion positioned within the open area. The thin layer structure and the recess portion of the nozzle plate define a depth of a fluid cavity defined by the thin layer structure, the recess portion of the nozzle plate and the sidewalls of the silicon wafer.
Abstract:
A method of jet-printing smooth micro-scale features is presented. The desired feature prior to being printed is masked by various decimation filters and the decimation is performed at various pitches. The subsequently printed image is then scanned and analyzed to determine the roughness of the lines. The optimum decimation pitch is determined by the feature that exhibits the least amount of droplet spreading and has the lowest edge roughness. The optimum decimation pitch may also be calculated from the material properties and the dynamics of fluids.
Abstract:
A method of forming a pattern includes forming a first layer on a substrate, forming a second layer on the first layer, depositing a multi-temperature phase-change material on the second layer, patterning the second layer using the multi-temperature phase-change material as a mask, reflowing the multi-temperature phase-change material, and patterning the first layer using the reflowed multi-temperature phase-change material as a mask.
Abstract:
A system for transporting particles includes a substrate and a plurality of spaced electrically conductive electrodes carried by the substrate. Further included is a carrier medium adapted for the retention and migration of particles disposed therein, wherein the carrier medium is in operational contact with the electrodes, and a vibration generator is positioned in relation to the substrate to impart vibrations into the carrier medium. In an alternative embodiment, the vibration generator is configured to generate an acoustic traveling wave, which includes a vibration component and a motivation component.
Abstract:
A method for producing a semiconductor wafer (1) with one or more micro-mirrors (5) formed in a membrane layer (2) which is supported on a handle layer (3) with a buried oxide layer (6) between the membrane and handle layers (2,3) which avoids rupturing of tethers (7) which support the micro-mirrors (5) in the membrane layer (2) and also avoids bowing of the micro-mirrors (5). After trenches (14) are formed in the membrane layer (2) for defining the micro-mirrors (5) and the tethers (7), and prior to forming of through bores (9) through the handle layer (3) to the micro-mirrors (5), a support layer (20) of oxide is deposited on the exposed surface (12) of the membrane layer (2) over the micro-mirrors (5) and the tethers (7) and is back filled into the trenches (14) for supporting bridging portions (16) of the buried oxide layer (6). The buried oxide layer (6) acts as an etch stop layer for the through bores (9), and stresses which are induced in exposed portions (19) of the buried oxide layer (6) exposed by the through bores (9) during etching of the through bores (9) are counteracted by the support layer (20) which prevents rupturing of the bridging portions (16), thereby preventing rupturing of the tethers (7). By counteracting the stresses induced in the exposed portions (19) of the buried oxide layer (6) bowing of the exposed portions (19) is avoided and thus bowing of the micro-mirrors (5) is also avoided.
Abstract:
A system and method for in-process yield evaluation and correction in an array type of device are provided. The system and method include measuring electrical resistance between individual GATE lines, DATA lines, a DATA bus I/O pad, and a GATE bus I/O pad; and analyzing the measured electrical resistance to identify at least one of the following: GATE line open defects, GATE line bridge defects, DATA line open defects, DATA line bridge defects, and interlayer shunt defects.
Abstract:
A method of forming a fluid ejector includes forming a recess well into a silicon wafer on a first side of the silicon wafer, and filling the recess well with a sacrificial material. A thin layer structure is deposited onto the first side of a silicon wafer covering the filled recess well. Then a thin film piezoelectric is bonded or deposited to the thin layer structure, and a hole is formed in the thin layer structure exposing at least a portion of the sacrificial material. The sacrificial material is removed from the recess well, wherein the hole in the thin layer in the recess well with the sacrificial material removed, form a fluid inlet. An opening area in the silicon wafer is formed on a second side of the silicon wafer. Then a nozzle plate is formed having a recess portion and an aperture within the recess portion. The nozzle plate is attached to the second side of the silicon wafer, with the recess portion positioned within the open area. The thin layer structure and the recess portion of the nozzle plate define a depth of a fluid cavity defined by the thin layer structure, the recess portion of the nozzle plate and the sidewalls of the silicon wafer.
Abstract:
A method of forming a pattern includes forming a first layer on a substrate, forming a second layer on the first layer, depositing a multi-temperature phase-change material on the second layer, patterning the second layer using the multi-temperature phase-change material as a mask, reflowing the multi-temperature phase-change material, and patterning the first layer using the reflowed multi-temperature phase-change material as a mask.