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    • 49. 发明申请
    • Printed circuit heaters with ultrathin low resistivity materials
    • 具有超薄低电阻率材料的印刷电路加热器
    • US20040075528A1
    • 2004-04-22
    • US10278184
    • 2002-10-22
    • OAK-MITSUI, Inc.
    • Derek C. CarbinJeffrey T. GrayJohn A. Andresakis
    • H01C001/012
    • H01C17/003H01C17/2412H01C17/2416H05B3/262H05B2203/003H05K1/167H05K3/025H05K2201/0355H05K2203/0361
    • A printed circuit heater and process for forming a printed circuit heater are described. The printed circuit heater is formed by depositing a thin metal layer onto a surface of a metal carrier foil, forming a composite. The thin metal layer has a thickness of about 0.1 nullm to about 2 nullm. The composite is attached to a substrate such that the thin metal layer is in contact with the substrate, forming a laminate. At least a portion of the metal carrier foil is selectively removed from portions of the laminate. The thin metal layer is patterned and etched such that the etched thin metal layer has a heat density of from about 0.5 watts/in2 to about 20 watts/in2 at working voltages from about 3 volts to about 600 volts. The remaining portions of the metal carrier foil, if any, can be selectively removed to thereby provide low resistance busses within the circuit, thus eliminating the need for multiple external connections, and to facilitate evenness of heat distribution.
    • 描述印刷电路加热器和用于形成印刷电路加热器的工艺。 印刷电路加热器通过在金属载体箔的表面上沉积薄金属层而形成复合材料。 薄金属层的厚度为约0.1μm至约2μm。 复合材料附着在基材上,使得薄金属层与基材接触,形成叠层。 金属载体箔的至少一部分从层压体的部分选择性地去除。 薄金属层被图案化和蚀刻,使得蚀刻的薄金属层在约3伏至约600伏的工作电压下具有约0.5瓦特/平方英寸至约20瓦特/平方英寸的热密度。 金属载体箔的剩余部分(如果有的话)可以被选择性地去除,从而在电路内提供低电阻总线,从而消除对多个外部连接的需要,并且便于热分布的均匀性。
    • 50. 发明申请
    • Low temperature coefficient resistor
    • 低温系数电阻
    • US20040004535A1
    • 2004-01-08
    • US10615039
    • 2003-07-08
    • LSI Logic Corporation
    • Robindranath Banerjee
    • H01C001/012
    • H01L28/20H01C7/006H01C7/008H01L27/0802
    • A resistor having a desired temperature coefficient of resistance and a total electrical resistance. A first resistor segment has a first temperature coefficient of resistance and a first electrical resistance. A second resistor segment has a second temperature coefficient of resistance and a second electrical resistance. The first resistor segment is electrically connected in series with the second resistor segment, and the total electrical resistance equals a sum of the first electrical resistance and the second electrical resistance. The desired temperature coefficient of resistance is determined at least in part by the first temperature coefficient of resistance and the first electrical resistance of the first resistor and the second temperature coefficient of resistance and the second electrical resistance of the second resistor. Thus, in this manner the desired temperature coefficient of resistance of the resistor can be tailored to a desired value by selecting the resistance and temperature coefficients of resistance of the first and second resistor segments that are connected in series. The desired temperature coefficient of resistance can selectively be a positive value, a negative value, or a zero value, depending upon the selection of the material and the resulting resistance values and temperature coefficient of resistance values for the first and second resistor segments.
    • 具有期望的电阻温度系数和总电阻的电阻器。 第一电阻器段具有第一温度系数电阻和第一电阻。 第二电阻器段具有第二电阻温度系数和第二电阻。 第一电阻器段与第二电阻器段串联电连接,总电阻等于第一电阻和第二电阻之和。 期望的电阻温度系数至少部分地由第一电阻温度系数和第一电阻器的第一电阻以及第二电阻温度系数和第二电阻器的第二电阻确定。 因此,以这种方式,通过选择串联连接的第一和第二电阻器段的电阻和电阻温度系数,可以将电阻器的期望温度系数调整到期望值。 取决于材料的选择和所得到的电阻值和第一和第二电阻器段的电阻值的温度系数,所需的电阻温度系数可以选择性地为正值,负值或零值。