摘要:
Slurry compositions and chemically activated CMP methods for polishing a substrate having a silicon carbide surface using such slurries. In such methods, the silicon carbide surface is contacted with a CMP slurry composition that comprises i) a liquid carrier and ii) a plurality of particles having at least a soft surface portion, wherein the soft surface portion includes a transition metal compound that provides a Mohs hardness
摘要:
An epitaxial article includes a substrate having a substrate surface having a substrate surface composition including crystalline defect or amorphous regions and crystalline non-defect regions. The crystalline defect or amorphous regions are recessed from the substrate surface by surface recess regions. A capping material fills the surface recess regions to provide capped defects that extend from a top of the defect regions to the substrate surface. The capping material is compositionally different from the substrate surface composition. An epitaxial layer over the substrate surface provides an average crystalline defect density in at least one area having a size ≧0.5 μm2 that is ≧ two times lower than an average crystalline defect density in that area at or below the substrate surface.
摘要:
The present invention provides an application specific integrated circuit and a method of operation thereof. In one advantageous embodiment, the application specific integrated circuit includes a programmable logic core having an array of dynamically configurable arithmetic logic units. This particular embodiment further includes a network interface subsystem that includes a media access controller. The network interface is configured to employ a first portion of the programmable logic core that interfaces with the media access controller and that is configurable to process control data. This embodiment further includes a data transmission subsystem associated with a memory device, and configured to employ a second portion of the programmable logic core that stores received data from the network interface subsystem to the memory device and sends transmission data from the memory device to the network interface subsystem in response to an instruction from a host system.
摘要:
A method of forming a crystalline thin film from an amorphous semiconductor thin film such as amorphous silicon, by providing a generally planar nucleation inducing member, such as a crystalline silicon wafer, having a number of micro-scale surface contact points and with a hardness equal to or greater than the hardness of the amorphous semiconductor thin film, contacting under pressure the surface contact points of the nucleation inducing member with the exposed surface of the amorphous thin film to form an assembly, annealing the assembly at between 300 to 700 degrees C. for 1 to 24 hours to crystallize the amorphous thin film, and removing the nucleation inducing member.
摘要:
A method of producing an improved adherent interface between a film or coating and a substrate of metal, ceramic, or composite material by laser treatment of the surface. Semi-periodic microscale surface structures of less than 200 microns in magnitude are made by laser radiation of at least 50 pulses with an energy density of 0.01 to 15 J/cm.sup.2 and a duration of 100 femtoseconds to 1 millisecond on each surface area treated.
摘要翻译:一种通过激光处理表面在金属,陶瓷或复合材料的膜或涂层和基底之间产生改善的粘附界面的方法。 小于200微米的半周期微尺度表面结构的幅度通过至少50个脉冲的激光辐射,每个表面处理的能量密度为0.01至15J / cm 2,持续时间为100飞秒至1毫秒。
摘要:
A method of chemical-mechanical fabrication (CMF) for forming articles having tilted surface features. A substrate is provided having a patterned surface including two different layer compositions or a non-planar surface having at least one protruding or recessed feature, or both. The patterned surface are contacted with a polishing pad having a slurry composition, wherein a portion of surface being polished polishes at a faster polishing rate as compared to another portion to form at least one tilted surface feature. The tilted surface feature has at least one surface portion having a surface tilt angle from 3 to 85 degrees and a surface roughness
摘要:
A slurry includes a plurality of particles and at least one selective adsorption additive. The particles are preferably composite particles including a core surrounded by a shell provided by the selective adsorption additive. The slurry can be used to polish a structure including silicon dioxide or a low K dielectric film and a silicon nitride containing film, such as to form a shallow trench isolation (STI) structure or a metal-dielectric structure. The silicon nitride containing film surface substantially adsorbs the selective adsorption additive, whereas the silicon dioxide or low K dielectric film shows non-substantial adsorption characteristics to the adsorption additive. In another embodiment of the invention, silicon dioxide or low K dielectric film shows non-substantial adsorption of the selective adsorption additive at a pressure above a predetermined first pressure, and substantial adsorption of the selective adsorption additive for pressures below a predetermined second pressure, where the first pressure is greater than the second pressure.
摘要:
A method for increasing the surface area and roughness of metals, ceramics and composites on a micro-scale, and the surfaces themselves, is disclosed whereby a laser beam having a radiation wavelength of from UV to infrared is pulsed onto the surface of the material. The energy density of the radiation is between 0.01 to 15 J/cm.sup.2 and at least 50 pulses of radiation having duration of from 1 picosecond to 1 millisecond are used on each area. The surface structures formed are semi-periodic and are from 1/4 to several hundred microns in magnitude.
摘要翻译:公开了一种用于增加微尺度上的金属,陶瓷和复合材料的表面积和粗糙度以及表面本身的方法,由此将具有从UV到红外的辐射波长的激光束脉冲到材料的表面上。 辐射的能量密度在0.01至15J / cm 2之间,并且在每个区域上使用持续时间为1皮秒至1毫秒的至少50个脉冲的辐射。 所形成的表面结构是半周期性的,其数量级为1/4至几百微米。
摘要:
A method of chemically-mechanically polishing a substrate having a Group III-nitride surface includes providing a chemical-mechanical polishing slurry composition. The slurry composition includes a slurry solution including a liquid carrier and an oxidizer including a transition metal or a per-based compound. The slurry solution includes at least one component that reacts with the Group III-nitride surface to form a softened Group III-nitride surface. The Group III-nitride comprising surface is contacted with the slurry composition by a pad to form the softened Group III-nitride surface. The pad is moved relative to the softened Group III-nitride surface, wherein at least a portion of the softened Group III-nitride surface is removed.
摘要:
A solid state light source includes a substrate having a top surface and a bottom surface, and at least one optically active layer on the top surface of the substrate. At least one of the top surface, the bottom surface, the optically active layer or an emission surface on the optically active layer includes a patterned surface that includes a plurality of tilted surface features that have a high elevation portion and a low elevation portion that define a height (h), and wherein the plurality of tilted surface features define a minimum lateral dimension (r). The plurality of tilted surface features provide at least one surface portion that has a surface tilt angle from 3 to 85 degrees. The patterned surface has a surface roughness