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    • 23. 发明授权
    • Y-shaped carbon nanotubes as AFM probe for analyzing substrates with angled topography
    • Y型碳纳米管作为用于分析具有倾斜的地形的基底的AFM探针
    • US07368712B2
    • 2008-05-06
    • US11164792
    • 2005-12-06
    • Carol A. BoyeToshiharu FurukawaMark C. HakeySteven J. HolmesDavid V. HorakCharles W. Koburger, III
    • Carol A. BoyeToshiharu FurukawaMark C. HakeySteven J. HolmesDavid V. HorakCharles W. Koburger, III
    • G01N23/00G21K7/00
    • G01Q60/42G01Q70/12
    • A Y-shaped carbon nanotube atomic force microscope probe tip and methods comprise a shaft portion; a pair of angled arms extending from a same end of the shaft portion, wherein the shaft portion and the pair of angled arms comprise a chemically modified carbon nanotube, and wherein the chemically modified carbon nanotube is modified with any of an amine, carboxyl, fluorine, and metallic component. Preferably, each of the pair of angled arms comprises a length of at least 200 nm and a diameter between 10 and 200 nm. Moreover, the chemically modified carbon nanotube is preferably adapted to allow differentiation between substrate materials to be probed. Additionally, the chemically modified carbon nanotube is preferably adapted to allow fluorine gas to flow through the chemically modified carbon nanotube onto a substrate to be characterized. Furthermore, the chemically modified carbon nanotube is preferably adapted to chemically react with a substrate surface to be characterized.
    • Y型碳纳米管原子力显微镜探针头和方法包括轴部分; 一对成角度的臂,其从所述轴部的同一端延伸,其中所述轴部和所述一对成角度的臂包括化学改性的碳纳米管,并且其中所述化学改性的碳纳米管用胺,羧基,氟 ,和金属成分。 优选地,一对成角度的臂中的每一个包括至少200nm的长度和10和200nm之间的直径。 此外,化学改性的碳纳米管优选适于允许待探测的基底材料之间的分化。 此外,化学改性的碳纳米管优选适于使氟气通过化学改性的碳纳米管流动到待表征的基底上。 此外,化学改性的碳纳米管优选适于与要表征的基材表面发生化学反应。
    • 30. 发明授权
    • Method and structure for forming a trench in a semiconductor substrate
    • 在半导体衬底中形成沟槽的方法和结构
    • US06503813B1
    • 2003-01-07
    • US09595978
    • 2000-06-16
    • Charles W. Koburger, III
    • Charles W. Koburger, III
    • H01L2176
    • H01L21/763H01L21/3081H01L27/1087
    • A method and structure for forming a trench in a semiconductor substrate that includes a semiconductor material such as silicon. The method and structure may be used to form a deep trench or a shallow trench, without having a pad oxide in contact with the semiconductor substrate. The method for forming the deep trench forms a nitride layer on the semiconductor substrate, wherein the selectively etchable layer (e.g., a nitride layer) is selectively etchable with respect to the semiconductor substrate, and wherein there is no pad oxide between the selectively etchable layer and the semiconductor substrate. An erosion resistant layer (e.g., a hard mask oxide layer) is formed on the selectively etchable layer, wherein the erosion resistant layer is resistant to being etched by a reactive ion etch (RIE) process that etches the semiconductor substrate. Then the deep trench is formed by RIE through the erosion resistant layer, through the selectively etchable layer, and into the semiconductor substrate. The method for forming the shallow trench forms a nitride layer on the semiconductor substrate, wherein the selectively etchable layer (e.g., a nitride layer) is selectively etchable with respect to the semiconductor substrate, and wherein there is no pad oxide between the selectively etchable layer and the semiconductor substrate. Then the deep trench is formed by RIE through the selectively etchable layer and into the semiconductor substrate, followed by depositing and planarizing an insulative material in the shallow trench.
    • 一种用于在半导体衬底中形成沟槽的方法和结构,其包括半导体材料如硅。 该方法和结构可用于形成深沟槽或浅沟槽,而不会使衬垫氧化物与半导体衬底接触。 用于形成深沟槽的方法在半导体衬底上形成氮化物层,其中可选择的可蚀刻层(例如,氮化物层)可相对于半导体衬底选择性地蚀刻,并且其中在该可选择性蚀刻层 和半导体衬底。 在可选择的可蚀刻层上形成耐腐蚀层(例如,硬掩模氧化物层),其中抗腐蚀层耐腐蚀半导体衬底的反应离子蚀刻(RIE)工艺蚀刻。 然后,深沟通过RIE通过耐腐蚀层,通过选择性可蚀刻层形成并进入半导体衬底。 用于形成浅沟槽的方法在半导体衬底上形成氮化物层,其中可选择的可蚀刻层(例如,氮化物层)可相对于半导体衬底选择性地蚀刻,并且其中在该可选择性蚀刻层 和半导体衬底。 然后,深沟槽通过RIE通过选择性可蚀刻层形成并进入半导体衬底,然后沉积并平坦化浅沟槽中的绝缘材料。