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    • 3. 发明授权
    • Process for direct integration of a thin-film silicon p-n junction diode with a magnetic tunnel junction
    • 用于将薄膜硅p-n结二极管与磁性隧道结直接集成的工艺
    • US06828180B2
    • 2004-12-07
    • US10260067
    • 2002-09-27
    • Daniel ToetThomas W. Sigmon
    • Daniel ToetThomas W. Sigmon
    • H01L2184
    • H01L27/224B82Y10/00H01L29/861Y10S438/979
    • A process for direct integration of a thin-film silicon p-n junction diode with a magnetic tunnel junction for use in advanced magnetic random access memory (MRAM) cells for high performance, non-volatile memory arrays. The process is based on pulsed laser processing for the fabrication of vertical polycrystalline silicon electronic device structures, in particular p-n junction diodes, on films of metals deposited onto low temperature-substrates such as ceramics, dielectrics, glass, or polymers. The process preserves underlayers and structures onto which the devices are typically deposited, such as silicon integrated circuits. The process involves the low temperature deposition of at least one layer of silicon, either in an amorphous or a polycrystalline phase on a metal layer. Dopants may be introduced in the silicon film during or after deposition. The film is then irradiated with short pulse laser energy that is efficiently absorbed in the silicon, which results in the crystallization of the film and simultaneously in the activation of the dopants via ultrafast melting and solidification. The silicon film can be patterned either before or after crystallization.
    • 用于直接集成薄膜硅p-n结二极管与磁性隧道结的方法,用于高性能,非易失性存储器阵列的高级磁随机存取存储器(MRAM)单元。 该方法基于用于在沉积到诸如陶瓷,电介质,玻璃或聚合物的低温基底上的金属的膜上制造垂直多晶硅电子器件结构,特别是p-n结二极管的脉冲激光处理。 该过程保留了典型地沉积器件的底层和结构,例如硅集成电路。 该方法涉及在金属层上的无定形或多晶相中的至少一层硅的低温沉积。 在沉积期间或之后,可以在硅膜中引入掺杂剂。 然后用有效吸收在硅中的短脉冲激光能量照射该膜,这导致膜的结晶并且同时通过超快熔化和固化来激活掺杂剂。 可以在结晶之前或之后对硅膜进行图案化。
    • 5. 发明授权
    • Process for direct integration of a thin-film silicon p-n junction diode with a magnetic tunnel junction
    • 用于将薄膜硅p-n结二极管与磁性隧道结直接集成的工艺
    • US06933530B2
    • 2005-08-23
    • US10943475
    • 2004-09-17
    • Daniel ToetThomas W. Sigmon
    • Daniel ToetThomas W. Sigmon
    • H01L21/8246H01L27/22H01L29/861H01L29/04
    • H01L27/224B82Y10/00H01L29/861Y10S438/979
    • A process for direct integration of a thin-film silicon p-n junction diode with a magnetic tunnel junction for use in advanced magnetic random access memory (MRAM) cells for high performance, non-volatile memory arrays. The process is based on pulsed laser processing for the fabrication of vertical polycrystalline silicon electronic device structures, in particular p-n junction diodes, on films of metals deposited onto low temperature-substrates such as ceramics, dielectrics, glass, or polymers. The process preserves underlayers and structures onto which the devices are typically deposited, such as silicon integrated circuits. The process involves the low temperature deposition of at least one layer of silicon, either in an amorphous or a polycrystalline phase on a metal layer. Dopants may be introduced in the silicon film during or after deposition. The film is then irradiated with short pulse laser energy that is efficiently absorbed in the silicon, which results in the crystallization of the film and simultaneously in the activation of the dopants via ultrafast melting and solidification. The silicon film can be patterned either before or after crystallization.
    • 用于直接集成薄膜硅p-n结二极管与磁性隧道结的方法,用于高性能,非易失性存储器阵列的高级磁随机存取存储器(MRAM)单元。 该方法基于用于在沉积到诸如陶瓷,电介质,玻璃或聚合物的低温基底上的金属的膜上制造垂直多晶硅电子器件结构,特别是p-n结二极管的脉冲激光处理。 该过程保留了典型地沉积器件的底层和结构,例如硅集成电路。 该方法涉及在金属层上的无定形或多晶相中的至少一层硅的低温沉积。 在沉积期间或之后,可以在硅膜中引入掺杂剂。 然后用有效吸收在硅中的短脉冲激光能量照射该膜,这导致膜的结晶并且同时通过超快熔化和固化来激活掺杂剂。 可以在结晶之前或之后对硅膜进行图案化。