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    • 9. 发明授权
    • Electrically programmable read-only memory cell
    • 电可编程只读存储单元
    • US5621233A
    • 1997-04-15
    • US462410
    • 1995-06-05
    • Umesh SharmaMichael P. Woo
    • Umesh SharmaMichael P. Woo
    • H01L21/8247H01L29/788H01L29/76
    • H01L27/11521
    • EPROM cells include T-shaped floating gates (61, 171) and control gates that surround virtually all of the floating gates (61, 171) except for the portion of the floating gates (61, 171) that lie on a gate dielectric layer (51, 151). The EPROM cells may include customized well regions (22, 122) to allow flash erasing or individual cell erasing for electrically erasable EPROMs. Many different configurations of the memory cells are possible. The configurations of the source regions, drain regions, and well regions (22, 122) may be determined by how a user of the memory cells wants to program or erase the memory cells.
    • EPROM单元包括除了浮置栅极(61,171)的位于栅介质层上的部分以外的实际上围绕所有浮动栅极(61,171)的T形浮动栅极(61,171)和控制栅极( 51,151)。 EPROM单元可以包括定制的阱区域(22,122),以允许电擦除EPROM的闪存擦除或单独的单元擦除。 存储单元的许多不同配置是可能的。 源极区域,漏极区域和阱区域(22,122)的配置可以由存储器单元的用户想如何编程或擦除存储器单元来确定。
    • 10. 发明授权
    • Process for forming an electrically programmable read-only memory cell
    • 用于形成电可编程只读存储器单元的工艺
    • US5498560A
    • 1996-03-12
    • US311162
    • 1994-09-16
    • Umesh SharmaMichael P. Woo
    • Umesh SharmaMichael P. Woo
    • H01L21/8247
    • H01L27/11521
    • EPROM cells include T-shaped floating gates (61, 171) and control gates that surround virtually all of the floating gates (61, 171) except for the portion of the floating gates (61, 171) that lie on a gate dielectric layer (51, 151). The EPROM cells may include customized well regions (22, 122) to allow flash erasing or individual cell erasing for electrically erasable EPROMs. Many different configurations of the memory cells are possible. The configurations of the source regions, drain regions, and well regions (22, 122) may be determined by how a user of the memory cells wants to program or erase the memory cells.
    • EPROM单元包括除了浮置栅极(61,171)的位于栅介质层上的部分以外的实际上围绕所有浮动栅极(61,171)的T形浮动栅极(61,171)和控制栅极( 51,151)。 EPROM单元可以包括定制的阱区域(22,122),以允许电擦除EPROM的闪存擦除或单独的单元擦除。 存储单元的许多不同配置是可能的。 源极区域,漏极区域和阱区域(22,122)的配置可以由存储器单元的用户想如何编程或擦除存储器单元来确定。