Oscillator and switch-over control circuit for a high-voltage generator

    公开(公告)号:US6147566A

    公开(公告)日:2000-11-14

    申请号:US995667

    申请日:1997-12-22

    IPC分类号: H02M3/07 H03K3/03 H03R5/24

    CPC分类号: H02M3/073 H03K3/0315

    摘要: An oscillator circuit produces first and second oscillating logic signals that are of a same frequency and are non-overlapping in a first logic state. This oscillator includes a flip-flop circuit to produce third and fourth oscillating logic signals of opposite polarities, this flip-flop circuit being driven by first and second driving logic signals. First and second logic gates receive the third and fourth logic signals and produce the first and second logic signals, the logic state transitions in the first and second logic signals being produced as a function of the logic state transitions of the third and fourth logic signals. The first and second logic gates are organized so as to introduce a delay into the transitions from a second logic state to the first logic state, in the first and second logic signals, with respect to transitions in the third and fourth logic signals. First and second RC type circuits produce the first and second driving signals to control the transitions in the third and fourth logic signals. The oscillator circuit can be used in a switch-over control circuit for a load pump type of high-voltage generator.

    Electronic structure comprising high and low voltage transistors, and a corresponding fabrication method
    2.
    发明授权
    Electronic structure comprising high and low voltage transistors, and a corresponding fabrication method 有权
    包括高压和低压晶体管的电子结构及相应的制造方法

    公开(公告)号:US06268633B1

    公开(公告)日:2001-07-31

    申请号:US09222568

    申请日:1998-12-28

    IPC分类号: H01L2976

    摘要: A structure of electronic devices integrated in a semiconductor substrate with a first type of conductivity comprising at least a first HV transistor and at least a second LV transistor, each having a corresponding gate region. Said first HV transistor has lightly doped drain and source regions with a second type of conductivity, and said second LV transistor has respective drain and source regions with the second type of conductivity, each including a lightly doped portion adjacent to the respective gate region and a second portion which is more heavily doped and comprises a silicide layer.

    摘要翻译: 集成在具有第一类型导电性的半导体衬底中的电子器件的结构,其包括至少第一HV晶体管和至少第二LV晶体管,每个具有相应的栅极区域。 所述第一HV晶体管具有具有第二类型导电性的轻掺杂漏极和源极区,并且所述第二LV晶体管具有具有第二类型导电性的各自的漏极和源极区,每个包含与相应栅极区相邻的轻掺杂部分, 第二部分是更重掺杂的并且包括硅化物层。

    Manufacturing process for a flash memory and flash memory thus produced
    3.
    发明授权
    Manufacturing process for a flash memory and flash memory thus produced 有权
    这样制造的闪速存储器和闪速存储器的制造过程

    公开(公告)号:US07183160B2

    公开(公告)日:2007-02-27

    申请号:US10763044

    申请日:2004-01-22

    IPC分类号: H01L21/336

    摘要: The invention relates to a production process for a flash memory from a semi-conductor substrate fitted with at least two adjacent rows of precursor stacks of floating gate transistors, the precursor stacks being at least partially covered by a protective resin and being separated by a formation zone for a source line. The process includes forming a trench in the formation zone for the source line by an attack of this zone and of the protective resin. The result of the attack step includes a deposit of residue from the resin below the precursor stacks. The residue deposit is removed. A source line is implanted in the formation zone below the precursor stacks. This process enables the time needed for erasing the memory to be reduced.

    摘要翻译: 本发明涉及一种用于从半导体衬底制造的闪存的制造方法,所述半导体衬底装配有至少两排相邻的浮动栅极晶体管的前驱叠层,所述前体叠层至少部分地被保护树脂覆盖并由地层 源线的区域。 该方法包括通过该区域和保护树脂的攻击在源极线的形成区域中形成沟槽。 攻击步骤的结果包括从前体堆叠下面的树脂沉积残留物。 残留物沉积物被去除。 将源极线植入在前体叠层下方的形成区域中。 该过程使得能够减少擦除存储器所需的时间。

    Manufacturing process for a flash memory and flash memory thus produced
    4.
    发明申请
    Manufacturing process for a flash memory and flash memory thus produced 有权
    这样制造的闪速存储器和闪速存储器的制造过程

    公开(公告)号:US20050087816A1

    公开(公告)日:2005-04-28

    申请号:US10763044

    申请日:2004-01-22

    摘要: The invention relates to a production process for a flash memory from a semi-conductor substrate fitted with at least two adjacent rows of precursor stacks of floating gate transistors, the precursor stacks being at least partially covered by a protective resin and being separated by a formation zone for a source line. The process includes forming a trench in the formation zone for the source line by an attack of this zone and of the protective resin. The result of the attack step includes a deposit of residue from the resin below the precursor stacks. The residue deposit is removed. A source line is implanted in the formation zone below the precursor stacks. This process enables the time needed for erasing the memory to be reduced.

    摘要翻译: 本发明涉及一种用于从半导体衬底制造的闪存的制造方法,所述半导体衬底装配有至少两排相邻的浮动栅极晶体管的前驱叠层,所述前体叠层至少部分地被保护树脂覆盖并由地层 源线的区域。 该方法包括通过该区域和保护树脂的攻击在源极线的形成区域中形成沟槽。 攻击步骤的结果包括从前体堆叠下面的树脂沉积残留物。 残留物沉积物被去除。 将源极线植入在前体叠层下方的形成区域中。 该过程使得能够减少擦除存储器所需的时间。

    Oscillator and switch-over control circuit for a high-voltage generator
    5.
    发明授权
    Oscillator and switch-over control circuit for a high-voltage generator 有权
    用于高压发生器的振荡器和切换控制电路

    公开(公告)号:US06373311B1

    公开(公告)日:2002-04-16

    申请号:US09578778

    申请日:2000-05-25

    IPC分类号: H03K300

    CPC分类号: H02M3/073 H03K3/0315

    摘要: An oscillator circuit produces first and second oscillating logic signals that are of a same frequency and are non-overlapping in a first logic state. This oscillator includes a flip-flop circuit to produce third and fourth oscillating logic signals of opposite polarities, this flip-flop circuit being driven by first and second driving logic signals. First and second logic gates receive the third and fourth logic signals and produce the first and second logic signals, the logic state transitions in the first and second logic signals being produced as a function of the logic state transitions of the third and fourth logic signals. The first and second logic gates are organized so as to introduce a delay into the transitions from a second logic state to the first logic state, in the first and second logic signals, with respect to transitions in the third and fourth logic signals. First and second RC type circuits produce the first and second driving signals to control the transitions in the third and fourth logic signals. The oscillator circuit can be used in a switch-over control circuit for a load pump type of high-voltage generator.

    摘要翻译: 振荡器电路产生第一和第二振荡逻辑信号,它们具有相同的频率并且在第一逻辑状态下不重叠。 该振荡器包括用于产生具有相反极性的第三和第四振荡逻辑信号的触发器电路,该触发器电路由第一和第二驱动逻辑信号驱动。 第一和第二逻辑门接收第三和第四逻辑信号并产生第一和第二逻辑信号,第一和第二逻辑信号中的逻辑状态转变是根据第三和第四逻辑信号的逻辑状态转换产生的。 第一和第二逻辑门被组织以便相对于第三和第四逻辑信号中的转变,在第一和第二逻辑信号中从第二逻辑状态到第一逻辑状态的转变引入延迟。 第一和第二RC型电路产生第一和第二驱动信号以控制第三和第四逻辑信号中的转变。 振荡电路可用于负载泵式高压发生器的切换控制电路。