摘要:
A method of fabricating a grayscale reticle includes preparing a quartz wafer substrate; depositing a layer of SRO on the top surface of the quartz substrate; patterning and etching the SRO to form an initial microlens pattern using step-over lithography; patterning and etching the SRO to form a recessed pattern in the SRO; depositing an opaque film on the SRO; patterning and etching the opaque film; depositing and planarizing a planarizing layer; cutting the quartz wafer into rectangular pieces sized to be smaller than a selected blank reticle; bonding the a piece a to selected reticle blank to form a grayscale reticle; and using the grayscale reticle to form a microlens array on a photoimager.
摘要:
A method for electorless plating of a substrate such as magnesium, aluminium, titanium or an alloy, comprises the steps of forming a very thin film of oxide on the substrate by plasma electrolytic oxidation before depositing a layer comprising nickel on the substrate by electroless nickel deposition.
摘要:
A method, and corresponding transistor structure are provided for protecting the gate electrode from an underlying gate insulator. The method comprises: forming a gate insulator overlying a channel region; forming a first metal barrier overlying the gate insulator, having a thickness of less than 5 nanometers (nm); forming a second metal gate electrode overlying the first metal barrier, having a thickness of greater than 10 nm; and, establishing a gate electrode work function exclusively responsive to the second metal. The second metal gate electrode can be one of the following materials: elementary metals such as p+ poly, n+ poly. Ta, W, Re, RuO2, Pt, Ti, Hf, Zr, Cu, V, Ir, Ni, Mn, Co, NbO, Pd, Mo, TaSiN, and Nb, and binary metals such as WN, TaN, and TiN. The first metal barrier can be a binary metal, such as TaN, TiN, or WN.
摘要:
This invention discloses a ventilation system for an MRI system, including: a hydrodynamic rotating device, a primary coolant water pipe, a secondary coolant water pipe, a fan and air outlet; the water outlet of the primary coolant water pipe is connected to the water inlet of the hydrodynamic rotating device, while the water inlet of the secondary coolant water pipe is connected to the water outlet of the hydrodynamic rotating device; with the impetus provided by the coolant water from the primary coolant water pipe, the hydrodynamic rotating device drives the fan near the air outlet to rotate, discharging the coolant water into the secondary coolant water pipe. Furthermore, the invention discloses a ventilation method for an MRI system. Ventilation efficiency is improved significantly with the system and method provided by this invention.
摘要:
Methods of using genetically-transformed plants in the phytoremediation of lead are described. Unlike many organisms in which only 10-kDa ACBPs have been identified, there exists a family of six ACBPs in the model plant Arabidopsis. Other than a function in mediating the transfer of acyl-CoA esters in plant lipid metabolism, all six Arabidopsis ACBPs can bind the heavy metal lead and are therefore applicable for phytoremediation. These methods of phytoremediation will provide a cheap, simple and efficient method in the removal of contaminating lead from soil/water/environment by the growth of the ACBP-overexpressing genetically-transformed plants in the contaminated environment. There is also provided a method to remove lead from contaminated water.
摘要:
A method of fabricating a grayscale mask includes preparing a quartz wafer; depositing a layer of Si3N4 on the quartz wafer; depositing a layer of titanium/TEOS directly on the Si3N4 layer on the backside of the quartz wafer; removing the layer of Si3N4 from the front side of the quartz wafer; depositing a layer of SRO directly on the front side of the quartz wafer; patterning a microlens array on the SRO layer; etching the SRO layer to form a microlens array in the SRO layer; depositing a layer of titanium; patterning and etching the titanium layer; depositing a layer of SiOxNy on the SRO microlens array; CMP to planarize the layer of SiOxNy removing the titanium/TEOS layer from the backside of the quartz wafer; bonding the planarized SiOxNy to a quartz reticle plate; and etching to remove Si3N4 from the bonded structure to form a grayscale mask reticle.
摘要翻译:制造灰度掩模的方法包括制备石英晶片; 在石英晶片上沉积一层Si 3 N 4 N 4; 在石英晶片的背面上的Si 3 N 4 N 4层上直接沉积钛/ TEOS层; 从石英晶片的正面去除Si 3 N 4 N 4层; 在石英晶片的正面上直接沉积SRO层; 在SRO层上构图微透镜阵列; 蚀刻SRO层以在SRO层中形成微透镜阵列; 沉积一层钛; 图案化和蚀刻钛层; 在SRO微透镜阵列上沉积一层SiO 2 x N y O; CMP以平坦化从石英晶片的背面去除钛/ TEOS层的SiO 2 x N y层; 将平坦化的SiO x N N y N键合到石英光罩板上; 以及蚀刻以从结合结构去除Si 3 N 4 N 4以形成灰度掩模掩模版。
摘要:
A method of fabricating a grayscale mask includes preparing a silicon wafer; depositing a layer of Si3N4 directly on the silicon wafer; implanting H+ ions into the silicon wafer to form a defect layer; depositing a first layer of SiOxNy directly on the Si3N4 layer; depositing a layer of SRO directly on the first layer of SiOxNy; patterning and etching the SRO layer to form a microlens array in the SRO layer; depositing a second layer of SiOxNy on the SRO microlens array; CMP to planarize the second layer of SiOxNy; bonding and cleaving the planarized SiOxNy to a quartz plate to form a graymask reticle; etching to remove silicon from the bonded structure; etching to remove SiOxNy and Si3N4 from the bonded structure; and cleaning and drying the graymask reticle.
摘要翻译:制造灰度掩模的方法包括制备硅晶片; 在硅晶片上直接沉积一层Si 3 N 4 N 4; 将H +离子注入到硅晶片中以形成缺陷层; 在Si 3 N 4 N层上直接沉积第一层SiO x N y Y y; 在第一SiO 2层上沉积SRO层; 图案化和蚀刻SRO层以在SRO层中形成微透镜阵列; 在SRO微透镜阵列上沉积第二层SiO x N N y O; CMP以使第二层SiO 2平面化; 将平坦化的SiO x N N y键合并切割成石英板以形成灰色掩模掩模版; 蚀刻以从结合结构去除硅; 蚀刻以从结合的结构去除SiO 2和N 3 N 4和S 3 N 4 N 4; 并清理并干燥灰色掩模。
摘要:
A method of fabricating a grayscale reticle includes preparing a quartz wafer substrate; depositing a layer of SRO on the top surface of the quartz substrate; patterning and etching the SRO to form an initial microlens pattern using step-over lithography; patterning and etching the SRO to form a recessed pattern in the SRO; depositing an opaque film on the SRO; patterning and etching the opaque film; depositing and planarizing a planarizing layer; cutting the quartz wafer into rectangular pieces sized to be smaller than a selected blank reticle; bonding the a piece a to selected reticle blank to form a grayscale reticle; and using the grayscale reticle to form a microlens array on a photoimager.
摘要:
A method of fabricating an electroluminescent device includes, on a prepared substrate, depositing a rare earth-doped silicon-rich layer on gate oxide layer as a light emitting layer; and annealing and oxidizing the structure to repair any damage caused to the rare earth-doped silicon-rich layer; and incorporating the electroluminescent device into a CMOS IC. An electroluminescent device fabricated according to the method of the invention includes a substrate, a rare earth-doped silicon-rich layer formed on the gate oxide layer for emitting a light of a pre-determined wavelength; a top electrode formed on the rare earth-doped silicon-rich layer; and associated CMOS IC structures fabricated thereabout.
摘要:
A frequency synthesizer with a single PLL and multiple SSB mixers is presented. The frequency synthesizer includes a single PLL outputting a reference signal that is fed to a plurality of dividers coupled in sequence. The outputs from the dividers are mixed by the SSB mixers to produce signals with different frequencies. These signals with different frequencies can be selected through use of multiple selectors.