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    • 53. 发明授权
    • Method for manufacturing memory device
    • 制造存储器件的方法
    • US08399321B2
    • 2013-03-19
    • US13111745
    • 2011-05-19
    • Ping HsuYi-Nan ChenHsien-Wen Liu
    • Ping HsuYi-Nan ChenHsien-Wen Liu
    • H01L21/8242H01L21/336H01L21/425
    • H01L27/10867H01L21/26586H01L27/10873H01L29/1083H01L29/66659
    • The method for manufacturing a memory device is provided. The method includes: implanting a first impurity into the substrate adjacent to the gate conductor structure to form a source region on a first side of the gate conductor structure and a drain region on a second side of the gate conductor structure; implanting a second impurity into the substrate to form a halo implantation region disposed adjacent to the source region, wherein the halo implantation region has a doping concentration which does not degrade a data retention time of the memory device; and performing an annealing process to the drain region, forming a diffusion region under the drain region, wherein the process temperature of the annealing process is controlled to ensure that the diffusion region has a doping concentration substantially equal to a threshold concentration which maintains an electrical connection between the drain and the deep trench capacitor.
    • 提供了一种用于制造存储器件的方法。 该方法包括:将第一杂质注入到与栅极导体结构相邻的衬底中,以在栅极导体结构的第一侧上形成源极区,在栅极导体结构的第二侧上形成漏极区; 将第二杂质注入到所述衬底中以形成邻近所述源极区设置的卤素注入区,其中所述晕圈注入区具有不降解所述存储器件的数据保留时间的掺杂浓度; 对所述漏极区进行退火处理,在所述漏极区域下方形成扩散区域,其中,控制所述退火处理的工艺温度,以确保所述扩散区域的掺杂浓度基本上等于保持电连接的阈值浓度 在漏极和深沟槽电容器之间。