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    • 7. 发明授权
    • Method of forming dielectric layer of flash memory device
    • 形成闪存器件介电层的方法
    • US07507644B2
    • 2009-03-24
    • US11489230
    • 2006-07-19
    • Jae Hyoung Koo
    • Jae Hyoung Koo
    • H01L21/20
    • H01L21/28273H01L29/513
    • A method of manufacturing a flash memory device, wherein according to one embodiment, when a high dielectric material is formed by a remote plasma atomic layer deposition method, first and second dielectric layers are formed by one process at the same time using silicate as the first dielectric layer and the high dielectric layer formed on the silicate as the second dielectric layer. Accordingly, cost can be saved since the process is shortened, a film quality better than that of the existing dielectric layer structure can be obtained, and a film with improved step coverage can be formed. Furthermore, capacitance and insulating breakdown voltage can be increased by using silicate having a high dielectric constant and a high dielectric layer.
    • 一种制造闪存器件的方法,其中根据一个实施例,当通过远程等离子体原子层沉积方法形成高电介质材料时,通过一个工艺同时使用硅酸盐作为第一电介质层形成第一和第二电介质层 电介质层和形成在硅酸盐上的高介电层作为第二介电层。 因此,可以节省成本,因为缩短了工艺,可以获得比现有的电介质层结构更好的膜质量,并且可以形成具有改善的台阶覆盖率的膜。 此外,通过使用具有高介电常数和高介电层的硅酸盐,可以提高电容和绝缘击穿电压。