Abstract:
A semiconductor device includes a region of semiconductor material with first and second isolation trenches formed therein. The first isolation trench is lined with a first material having a low oxygen diffusion rate and is filled with an insulating material. The second isolation trench is not lined with the first material but is filled with an insulating material. A first transistor is formed adjacent the first isolation region and a second transistor formed adjacent the second isolation region.
Abstract:
A semiconductor device comprises a substrate. In addition, the semiconductor device comprises an active region and an isolation region. The active region is in the substrate and comprises a semiconductor material. The isolation region is also in the substrate, adjacent the active region and comprises an insulating material. The active region and isolation region form a surface having a step therein. The semiconductor further comprises a dielectric material formed over the step. The dielectric material has a dielectric constant greater than about 8.
Abstract:
A semiconductor chip includes a semiconductor substrate 126, in which first and second active regions are disposed. A resistor 124 is formed in the first active region and the resistor 124 includes a doped region 128 formed between two terminals 136. A strained channel transistor 132 is formed in the second active region. The transistor includes a first and second stressor 141, formed in the substrate oppositely adjacent a strained channel region 143.
Abstract:
An automatic dust-removing eraser of a rolling-friction type for use on a blackboard includes: a casing body having an open section or cavity in the central portion; a plurality of different guiding slots vertically formed at both ends of the side walls defining the open section; a spare space provided at each end portion with an escape clack valve and a discharge door respectively disposed in the opposing side walls defining the spare spaces; a pair of supporting members each having integrally-linked parallel plates respectively secured in the guiding slots of the casing body; and a plurality of master rollers and slave rollers mounted within the cavity in interrelated coupling; so that, by means of the matched rotation of the master and slave rollers and the unilateral check action effected from the supporting members, the chalk dust gathered by the master rollers over the surface of the blackboard is automatically removed through self-brushing and discharging action of the slave rollers.
Abstract:
An electromagnetic shielding composite includes a polymer and a carbon nanotube film structure. The carbon nanotube structure includes a number of carbon nanotubes disposed in the polymer. The number of carbon nanotubes are parallel with each other.
Abstract:
Proton exchange membrane compositions having high proton conductivity are provided. The proton exchange membrane composition includes a hyper-branched polymer, wherein the hyper-branched polymer has a DB (degree of branching) of more than 0.5. A polymer with high ion conductivity is distributed uniformly over the hyper-branched polymer, wherein the hyper-branched polymer has a weight ratio equal to or more than 5 wt %, based on the solid content of the proton exchange membrane composition.
Abstract:
A solar cell with a molybdenum back electrode layer and a molybdenum selenide ohmic contact layer over the molybdenum back electrode, is provided. The molybdenum selenide layer includes an accurately controlled thickness. A distinct interface exists between the molybdenum back electrode layer and the molybdenum silicide layer. The molybdenum silicide layer is produced by forming a molybdenum layer or a molybdenum nitride layer or a molybdenum oxide layer over an initially formed molybdenum layer such that an interface exists between the two layers. A selenization and sulfurization process is carried out to selectively convert the molybdenum-containing layer to molybdenum selenide but not the original molybdenum back electrode layer which remains as a molybdenum layer.
Abstract:
The present invention relates to an apparatus for spraying an etchant and a method for manufacturing a printed circuit board. In one exemplary embodiment the apparatus includes a manifold, a plurality of feed pipes in fluid communication with the manifold, each of the feed pipes having a plurality of spray nozzles mounted thereon, the feed pipes cooperatively constitute a spray region, and a pressure-boosting device configured for increasing a spray pressure of the spray nozzles which are located at a central area of the spray region. The apparatus can overcome “the puddle effect” on an upper surface of the printed circuit board.
Abstract:
A method of fabricating a solar cell includes forming a front contact layer over a substrate, and the front contact layer is optically transparent at specified wavelengths and electrically conductive. A first scribed area is scribed through the front contact layer to expose a portion of the substrate. A buffer layer doped with an n-type dopant is formed over the front contact layer and the first scribed area. An absorber layer doped with a p-type dopant is formed over the buffer layer. A back contact layer that is electrically conductive is formed over the absorber layer.
Abstract:
A multilayer printed circuit board includes a first printed circuit board, a second printed circuit board, an adhesive film, and a function layer. The adhesive film is sandwiched between the first printed circuit board and the second printed circuit board. The function layer is disposed between the first printed circuit board and the second printed circuit board for blocking water from passing therethrough and for screening electromagnetic interference between the first printed circuit board and the second printed circuit board.