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    • 6. 发明授权
    • Radiation hardening method for shallow trench isolation in CMOS
    • CMOS中浅沟槽隔离的辐射硬化方法
    • US06890832B1
    • 2005-05-10
    • US10292787
    • 2002-11-12
    • David B. KerwinBradley J Larsen
    • David B. KerwinBradley J Larsen
    • H01L21/762H01L21/8234H01L21/76
    • H01L21/76237H01L21/823481Y10S438/911
    • A radiation-hardened STI process includes implanting a partially formed wafer with a fairly large dose (1013 to 1017 ions/cm2) of a large atom group III element, such as B, Al, Ga or In at an energy between about 30 and 500 keV. The implant is followed by an implant of a large group V element, such as P, As, Sb, or Bi using similar doses and energies to the group III element. The group V element compensates the group III element. The combination of the two large atoms decreases the diffusivity of small atoms, such as B, in the implanted areas. Furthermore, the combination of the group III and group V elements in roughly equal proportions creates recombination sites and electron traps in the field oxide, resulting in a radiation hardened semiconductor device.
    • 辐射硬化的STI工艺包括以相当大的剂量(10×13×10〜17×2 / cm 2)注入部分形成的晶片 大的原子组III元素,例如B,Al,Ga或In,其能量在约30和500keV之间。 随后,使用与III族元素相似的剂量和能量,植入大的V族元素,例如P,As,Sb或Bi。 V族元素补偿第III族元素。 两个大原子的组合降低了植入区域中小原子(如B)的扩散性。 此外,III族和V族元素的组合大致相等地在场氧化物中产生复合位点和电子陷阱,导致辐射硬化的半导体器件。
    • 7. 发明授权
    • Energy sensitive direct conversion radiation detector
    • 能量敏感直接转换辐射探测器
    • US07589327B2
    • 2009-09-15
    • US12121480
    • 2008-05-15
    • David B. Kerwin
    • David B. Kerwin
    • H01J47/00
    • G01T1/242G01T1/28
    • An x-ray detector capable of directly converting x-ray radiation into electrical signals utilizes the radiation induced conductivity of various solid, electrically insulating materials. The detector is configured comprising one or more anodes and cathodes separated by various thicknesses of dielectric material wherein ionization occurs primarily in the electrodes of such detector structure. The radiation induced conductivity of the dielectric material can be modulated by controlling the size, orientation and composition of the electrodes and the dielectric materials as well as the electrical bias between anode and cathode.
    • 能够将x射线辐射直接转换为电信号的X射线检测器利用各种固体电绝缘材料的辐射诱导电导率。 检测器被配置为包括由各种厚度的介电材料分离的一个或多个阳极和阴极,其中电离主要发生在这种检测器结构的电极中。 可以通过控制电极和介电材料的尺寸,取向和组成以及阳极和阴极之间的电偏压来调节介电材料的辐射诱导电导率。