Low voltage triggering semiconductor controlled rectifiers
    63.
    发明授权
    Low voltage triggering semiconductor controlled rectifiers 失效
    低电压触发半导体受控整流器

    公开(公告)号:US5465189A

    公开(公告)日:1995-11-07

    申请号:US289983

    申请日:1994-08-12

    IPC分类号: H01L27/02 H02H9/04

    CPC分类号: H01L27/0259 H01L29/87

    摘要: A new semiconductor controlled rectifier which may be used to provide on-chip protection against ESD stress applied at the input, output, power supply pins or between any arbitrary pair of pins of an integrated circuit is disclosed. The structure which has the lowest breakdown voltage for a given technology is incorporated into the SCR enabling a SCR trigger voltage determined by the lowest breakdown-structure.

    摘要翻译: 公开了一种新的半导体可控整流器,其可用于提供片上保护以防止在输入,输出,电源引脚或集成电路的任意任意一对引脚之间施加的ESD应力。 对于给定技术具有最低击穿电压的结构被并入到SCR中,使得能够由最低击穿结构确定的SCR触发电压。

    Programmable interconnect or cell using silicided MOS transistors
    64.
    发明授权
    Programmable interconnect or cell using silicided MOS transistors 失效
    使用硅化MOS晶体管的可编程互连或单元

    公开(公告)号:US5068696A

    公开(公告)日:1991-11-26

    申请号:US574981

    申请日:1990-08-29

    IPC分类号: H01L29/10 H01L29/78

    CPC分类号: H01L29/78 H01L29/1033

    摘要: A programmable device (10) is formed from a silicided MOS transistor. The transistor (10) is formed at a face of a semiconductor layer (12), and includes a diffused drain region (17, 22) and a source region (19, 24) that are spaced apart by a channel region (26). At least the drain region (22) has a surface with a silicided layer (28) formed on a portion thereof. The application of a programming voltage in the range of ten to fifteen volts from the drain region (17, 22) to the source region (19, 24) has been discovered to reliably form a melt filament (40) across the channel region (26). A gate voltage (V.sub.g) may be applied to the insulated gate (14) over the channel region (26) such that a ten-volt programming voltage (V.sub.PROG) will cause melt filaments to form in those transistors to which the gate voltage is applied, but will not cause melt filaments to form in the remaining transistors (10) of an array.

    摘要翻译: 可编程器件(10)由硅化MOS晶体管形成。 晶体管(10)形成在半导体层(12)的表面,并且包括由沟道区域(26)间隔开的扩散漏极区域(17,22)和源极区域(19,24)。 至少漏极区域(22)具有在其一部分上形成有硅化物层(28)的表面。 已经发现,从漏区(17,22)到源区(19,24)的施加从十到十五伏的范围内的编程电压可靠地在通道区域(26)上形成熔丝(40) )。 栅极电压(Vg)可以在沟道区域(26)上施加到绝缘栅极(14),使得十伏编程电压(VPROG)将在施加栅极电压的晶体管中形成熔丝 ,但不会在阵列的剩余晶体管(10)中形成熔丝。

    Efficient ESD input protection scheme
    65.
    发明授权
    Efficient ESD input protection scheme 失效
    高效的ESD输入保护方案

    公开(公告)号:US4896243A

    公开(公告)日:1990-01-23

    申请号:US287427

    申请日:1988-12-20

    IPC分类号: H01L27/02 H01L29/8605

    CPC分类号: H01L29/8605 H01L27/0251

    摘要: An efficient ESD protection circuit is provided having a resistor (18) disposed between an input pin (12) and the functioning circuitry (22) of an integrated circuit package. A primary switching device (28) is electrically connected between the input pin (12) and a reference voltage pin (14). The resistor (18) comprises an N- well (48) formed within the P- substrate (44) and an N+ diffused reion (50) formed within the N- well (48). A silicided layer (52) is formed over the N+ region (50). The primary switching device (28) is constructed to share the same PN junction (54) utilized by the resistor (18). In constructing the primary switching device (28), a P+ region (70) is formed within the N- well (48). Further, an N+ region (68) is formed within the P- substrate (44). Thus, the primary switching device (40) includes three PN junctions (72, 54, 74) which will conduct at a time prior to, or contemporaneous with, the breakdown of resistor (18).

    摘要翻译: 提供了一种高效的ESD保护电路,其具有设置在集成电路封装的输入引脚(12)和功能电路(22)之间的电阻器(18)。 主开关装置(28)电连接在输入引脚(12)和参考电压引脚(14)之间。 电阻器(18)包括形成在P-衬底(44)内的N阱(48)和形成在N阱(48)内的N +扩散的ion(50)。 在N +区域(50)上形成硅化物层(52)。 主开关器件(28)被构造成共享由电阻器(18)使用的相同的PN结(54)。 在构成初级开关器件(28)时,在N阱(48)内形成有P +区(70)。 此外,在P-衬底(44)内形成N +区(68)。 因此,初级开关器件(40)包括三个PN结(72,54,74),其将在电阻器(18)的击穿之前或同时进行的时间传导。

    SRAM cell parameter optimization
    66.
    发明授权
    SRAM cell parameter optimization 有权
    SRAM单元参数优化

    公开(公告)号:US09059032B2

    公开(公告)日:2015-06-16

    申请号:US13097370

    申请日:2011-04-29

    摘要: An integrated circuit having an SRAM cell includes a pair of cross-coupled inverters with first driver and load transistors connected to provide a first storage node and second driver and load transistors connected to provide a second storage node. The SRAM cell also includes first and second pass gate transistors controlled by at least one word line and respectively connected between a first bit line and the first storage node and a second bit line and the second storage node; wherein a first driver transistor threshold voltage is different than a second driver transistor threshold voltage and one of the first and second driver threshold voltages is different than a pass gate transistor threshold voltage. Alternately, a threshold voltage of the first and second driver transistors is different than a symmetrical pass gate transistor threshold voltage. Additionally, methods of manufacturing an integrated circuit having an SRAM cell are provided.

    摘要翻译: 具有SRAM单元的集成电路包括一对交叉耦合的反相器,其中第一驱动器和负载晶体管被连接以提供第一存储节点和第二驱动器以及连接到第二存储节点的负载晶体管。 SRAM单元还包括由至少一个字线控制并分别连接在第一位线和第一存储节点之间的第一和第二通过栅极晶体管以及第二位线和第二存储节点; 其中第一驱动晶体管阈值电压不同于第二驱动晶体管阈值电压,并且第一和第二驱动器阈值电压中的一个不同于通过栅极晶体管阈值电压。 或者,第一和第二驱动晶体管的阈值电压不同于对称的通过栅极晶体管阈值电压。 另外,提供了具有SRAM单元的集成电路的制造方法。

    Intentional pocket shadowing to compensate for the effects of cross-diffusion in SRAMs
    68.
    发明授权
    Intentional pocket shadowing to compensate for the effects of cross-diffusion in SRAMs 有权
    有意义的口袋阴影以补偿SRAM中交叉扩散的影响

    公开(公告)号:US07795085B2

    公开(公告)日:2010-09-14

    申请号:US11451264

    申请日:2006-06-12

    IPC分类号: H01L21/8238

    CPC分类号: H01L27/1104 H01L27/11

    摘要: Methods are disclosed for forming an SRAM cell having symmetrically implanted active regions and reduced cross-diffusion therein. One method comprises patterning a resist layer overlying a semiconductor substrate to form resist structures about symmetrically located on opposite sides of active regions of the cell, implanting one or more dopant species using a first implant using the resist structures as an implant mask, rotating the semiconductor substrate relative to the first implant by about 180 degrees, and implanting one or more dopant species into the semiconductor substrate with a second implant using the resist structures as an implant mask. A method of performing a symmetric angle implant is also disclosed to provide reduced cross-diffusion within the cell, comprising patterning equally spaced resist structures on opposite sides of the active regions of the cell to equally shadow laterally opposed first and second angled implants.

    摘要翻译: 公开了用于形成具有对称注入的有源区并在其中减少的交叉扩散的SRAM单元的方法。 一种方法包括图案化覆盖在半导体衬底上的抗蚀剂层,以形成对称地位于电池的有源区的相对侧上的抗蚀剂结构,使用第一注入使用抗蚀剂结构作为注入掩模注入一种或多种掺杂物种, 衬底,相对于第一注入约180度,以及使用抗蚀剂结构作为植入掩模,用第二注入将一种或多种掺杂剂物质注入到半导体衬底中。 还公开了执行对称角度注入的方法,以在电池内提供减小的交叉扩散,包括在电池的有源区域的相对侧上图案化等间隔的抗蚀剂结构,以同样地遮蔽横向相对的第一和第二倾斜植入物。

    Application of Different Isolation Schemes for Logic and Embedded Memory
    69.
    发明申请
    Application of Different Isolation Schemes for Logic and Embedded Memory 有权
    不同隔离方案在逻辑和嵌入式存储器中的应用

    公开(公告)号:US20090258471A1

    公开(公告)日:2009-10-15

    申请号:US12489223

    申请日:2009-06-22

    IPC分类号: H01L21/8244 H01L21/762

    摘要: The present invention facilitates semiconductor device fabrication by providing mechanisms for utilizing different isolation schemes within embedded memory and other logic portions of a device. The isolation mechanism of the embedded memory portion is improved relative to other portions of the device by increasing dopant concentrations or reducing the depth of the dopant profiles within well regions of the embedded memory array. As a result, smaller isolation spacing can be employed thereby permitting a more compact array. The isolation mechanism of the logic portion is relatively less than that of the embedded memory portion, which permits greater operational speed for the logic.

    摘要翻译: 本发明通过提供用于在嵌入式存储器和设备的其他逻辑部分中利用不同隔离方案的机制来促进半导体器件制造。 嵌入式存储器部分的隔离机构相对于器件的其它部分通过增加掺杂剂浓度或降低嵌入式存储器阵列的阱区域内的掺杂剂分布的深度来改进。 因此,可以采用更小的隔离间隔,从而允许更紧凑的阵列。 逻辑部分的隔离机制相对小于嵌入式存储器部分的隔离机制,这允许逻辑的更高的操作速度。

    Method of manufacturing gate sidewalls that avoids recessing
    70.
    发明授权
    Method of manufacturing gate sidewalls that avoids recessing 有权
    制造避免凹陷的栅极侧壁的方法

    公开(公告)号:US07514331B2

    公开(公告)日:2009-04-07

    申请号:US11422952

    申请日:2006-06-08

    IPC分类号: H01L21/336

    摘要: A method of manufacturing a semiconductor device comprising removing a first oxide layer deposited over a semiconductor substrate, thereby exposing source and drain regions of the substrate. The first oxide layer is configured as an etch-stop for forming silicon nitride sidewall spacers of a gate structure located adjacent to the source and drain regions. The method further comprises depositing a second oxide layer selectively on the exposed source and drain regions and then removing lateral segments of the silicon nitride sidewall spacers.

    摘要翻译: 一种制造半导体器件的方法,包括去除沉积在半导体衬底上的第一氧化物层,从而暴露衬底的源极和漏极区域。 第一氧化物层被配置为用于形成邻近源极和漏极区的栅极结构的氮化硅侧壁间隔物的蚀刻停止。 该方法还包括在暴露的源极和漏极区上选择性地沉积第二氧化物层,然后去除氮化硅侧壁间隔物的侧向部分。