High performance BiFET complementary emitter follower logic circuit
    2.
    发明授权
    High performance BiFET complementary emitter follower logic circuit 失效
    高性能BiFET互补射极跟随逻辑电路

    公开(公告)号:US5245225A

    公开(公告)日:1993-09-14

    申请号:US874273

    申请日:1992-04-24

    CPC分类号: H03K19/09448

    摘要: A high performance bipolar, field effect transistor (BiFET) logic circuit has minimal power supply requirements, allowing the circuit to be manufactured in higher density devices than current switched emitter follower (CSEF). BiFET logic circuit has a plurality of input lines and first and second output lines. A plurality of FET devices are connected in parallel each having a gate connected to a corresponding one of the input lines. Two bipolar transistors are connected as a differential pair, the parallel connection of said FET devices providing an input to the base of the first bipolar transistor while the base of the second bipolar transistor is supplied with a reference voltage. Output bipolar transistors connected as emitter followers drive the first and second output lines respectively. One of these output bipolar transistors is driven by the first bipolar transistor of the differential pair, while the other of the output bipolar transistors is driven by the second bipolar transistor of the differential pair. By dotting the collectors of the differential pair, as is commonly done in CSEF circuits, additional logic functions are obtained; however, the number of additional logic functions obtained is greater than that obtainable in CSEF circuits. Thus, the BiFET has the additional advantage of providing additional logic function and flexibility as compared with CSEF circuits.

    摘要翻译: 高性能双极性场效应晶体管(BiFET)逻辑电路具有最小的电源要求,允许电路以比当前开关射极跟随器(CSEF)更高密度的器件制造。 BiFET逻辑电路具有多个输入线和第一和第二输出线。 多个FET器件并联连接,每个FET器件具有连接到相应的一个输入线的栅极。 两个双极晶体管作为差分对连接,所述FET器件的并联连接在第二双极晶体管的基极被提供参考电压时向第一双极晶体管的基极提供输入。 作为发射极跟随器连接的输出双极晶体管分别驱动第一和第二输出线。 这些输出双极晶体管中的一个由差分对的第一双极晶体管驱动,而另一个输出双极晶体管由差分对的第二双极晶体管驱动。 通过点击差分对的集电极,如CSEF电路中通常所做的那样,获得额外的逻辑功能; 然而,获得的附加逻辑函数的数量大于CSEF电路中可获得的附加逻辑函数的数量。 因此,与CSEF电路相比,BiFET具有提供附加逻辑功能和灵活性的额外优点。

    Integrated circuit employing inverse transistors
    4.
    发明授权
    Integrated circuit employing inverse transistors 失效
    采用反相晶体管的集成电路

    公开(公告)号:US5317208A

    公开(公告)日:1994-05-31

    申请号:US881595

    申请日:1992-05-12

    摘要: Relatively constant current sources and current mirrors are formed with vertical bipolar transistors operated in the inverse mode. In one embodiment of the invention, an integrated circuit current mirror includes a dual collector vertical NPN bipolar transistor having first and second regions of one conductivity type defining first and second collector regions, respectively, formed within a common third region of opposite conductivity type defining the base of the transistor. The third region is formed within a fourth region defining the emitter of the transistor. The structure of the dual collector vertical transistor is very compact since the two collectors share the same base region which is embedded in a common emitter (inverse collector) pocket. The "inverse" mode vertical transistor can function as a relatively constant current source with a voltage drop (VCEi) across its collector-to-emitter which is substantially less than that of a bipolar transistor operated in a normal mode. Transistors embodying the invention may be used to provide relatively constant current sources to numerous utilization means, such as logic or analog circuits. Due to the low VCEi of the "inverse" mode transistor, the resultant circuits can be operated at a lower operating voltage than prior art circuits. This results in a decrease of power dissipation.

    摘要翻译: 相对恒定的电流源和电流镜由以反向模式工作的垂直双极晶体管形成。 在本发明的一个实施例中,集成电路电流镜包括双集电极垂直NPN双极晶体管,其具有分别形成在相反导电类型的公共第三区域内的一种导电类型的第一和第二区域,限定第一和第二集电极区域, 晶体管的基极。 第三区域形成在限定晶体管的发射极的第四区域内。 双集电极垂直晶体管的结构非常紧凑,因为两个集电极共享相同的基极区域,该基极区域嵌入共同的发射极(反向集电极)口袋中。 “逆”模式垂直晶体管可以用作相对恒定的电流源,其电压降(VCEi)跨越其集电极到发射极,其基本上小于在正常模式下工作的双极晶体管的电压降。 体现本发明的晶体管可以用于向诸如逻辑或模拟电路的许多使用装置提供相对恒定的电流源。 由于“反”型晶体管的低VCEi,所得到的电路可以在比现有技术电路低的工作电压下工作。 这导致功耗的降低。

    BICMOS ECL circuit suitable for delay regulation
    5.
    发明授权
    BICMOS ECL circuit suitable for delay regulation 失效
    BICMOS ECL电路适用于延时调节

    公开(公告)号:US5254891A

    公开(公告)日:1993-10-19

    申请号:US870654

    申请日:1992-04-20

    CPC分类号: H03K19/00323 H03K19/00369

    摘要: CMOSFETs control the power in a bipolar logic gate to regulate its operating speed and hence its delay. In a specific embodiment of the invention, an n-channel CMOSFET controls the constant current through an emitter-coupled current switch, comprised of a pair of bipolar integrated circuit transistors. A p-channel CMOSFET, in series with each collector of the switch pair, establishes the collector voltage so as to maintain constant the output swing of the gate as the power through the gate is varied in order to regulate the gate delay. An error signal, indicative of factors that can cause variations in gate delay and the inverse of the error signal are generated by an on-chip circuit. The error signal is coupled to the n-channel CMOSFET and the inverse of the error signal is coupled to the p-channel CMOSFET. Thus, as the switch current is decreased in order to increase the gate delay, the collector impedance is simultaneously increased so the collector voltage, and hence the gate swing, remains constant. Similarly, when the switch current is increased, the collector impedance is decreased.

    摘要翻译: CMOSFET控制双极逻辑门中的功率来调节其工作速度,从而调节其延迟。 在本发明的具体实施例中,n沟道CMOSFET通过由一对双极集成电路晶体管组成的发射极耦合电流开关来控制恒定电流。 与开关对的每个集电极串联的p沟道CMOSFET建立集电极电压,以便通过栅极的功率变化来保持栅极的输出摆幅恒定,以便调节栅极延迟。 指示可能导致门延迟变化的因素和误差信号的反相的误差信号由片上电路产生。 误差信号耦合到n沟道CMOSFET,并且误差信号的反相耦合到p沟道CMOSFET。 因此,随着开关电流减小以增加栅极延迟,集电极阻抗同时增加,因此集电极电压,因此栅极摆动保持恒定。 类似地,当开关电流增加时,集电极阻抗减小。

    Complementary cascoded logic circuit
    6.
    发明授权
    Complementary cascoded logic circuit 失效
    互补级联逻辑电路

    公开(公告)号:US4709166A

    公开(公告)日:1987-11-24

    申请号:US865700

    申请日:1986-05-22

    摘要: Disclosed is a Complementary Cascoded Logic (C.sup.2 L) Circuit which performs the AND-INVERT (AI) (or NAND) function. The AND function is implemented with input PNP transistors and the invert function is implemented with a first NPN transistor. An inverted NPN transistor serves as a current source for the first NPN. A first low voltage Schottky diode is serially connected between the emitter of the first NPN transistor and the emitter of the inverted NPN current source transistor. The first Schottky diode precludes, under certain conditions, simultaneous conduction of the first NPN transistor and the inverted transistor. Oppositely poled second and third low voltage Schottky diodes are utilized via an emitter follower output to provide an output voltage swing of V.sub.R .+-.V.sub.F, where V.sub.R is a reference voltage and V.sub.F is the potential drop across a Schottky diode. The low power high speed logic circuit (C.sup.2 L) has particular utility in redundant circuit applications.

    摘要翻译: 公开了一种执行AND-INVERT(AI)(或NAND)功能的互补Cascoded Logic(C2L)电路。 AND功能由输入PNP晶体管实现,反相功能由第一NPN晶体管实现。 反向NPN晶体管用作第一NPN的电流源。 第一低电压肖特基二极管串联连接在第一NPN晶体管的发射极和反相NPN电流源晶体管的发射极之间。 第一肖特基二极管阻止了在某些条件下第一NPN晶体管和反相晶体管的同时导通。 通过射极跟随器输出使用相对极化的第二和第三低电压肖特基二极管,以提供VR +/- VF的输出电压摆幅,其中VR是参考电压,VF是肖特基二极管上的电位降。 低功率高速逻辑电路(C2L)在冗余电路应用中具有特殊的用途。

    NOR.sub.i circuit/bias generator combination compatible with CSEF
circuits
    7.
    发明授权
    NOR.sub.i circuit/bias generator combination compatible with CSEF circuits 失效
    NORI电路/偏置发生器组合兼容CSEF电路

    公开(公告)号:US5241223A

    公开(公告)日:1993-08-31

    申请号:US881592

    申请日:1992-05-12

    IPC分类号: H03K19/003 H03K19/086

    CPC分类号: H03K19/00376 H03K19/086

    摘要: NOR logic performed by a half current switch emitter follower ("HCSEF") circuit utilizing a transistor operated in the inverse active mode as its current source and having logic levels compatible with those of current switch emitter follower ("CSEF") circuitry is combined with a novel reference bias generator that controls the logic low voltage level by controlling the voltage drop across the current source. The NOR.sub.i circuit utilizes less power than CSEF circuits, has a natural threshold equal to the threshold of CSEF circuits to which it is coupled, has a delay skew of approximately 1:1, and maintains minimum signal levels with respect to variations on V.sub.cc. The reference bias generator compensates for temperature, process variables and variations in the NOR.sub.i circuit and in the power supply.

    摘要翻译: 利用以反向有功模式操作的晶体管作为其电流源并具有与电流开关射极跟随器(“CSEF”)电路的逻辑电平兼容的逻辑电平的由半电流开关射极跟随器(“HCSEF”)电路执行的NOR逻辑与 一种新颖的参考偏置发生器,通过控制电流源上的电压降来控制逻辑低电压电平。 NORi电路使用比CSEF电路更少的功率,具有等于其耦合到的CSEF电路的阈值的自然阈值,具有约1:1的延迟偏差,并且相对于Vcc上的变化保持最小信号电平。 参考偏置发生器补偿NORi电路和电源中的温度,过程变量和变化。

    Diode-transistor active pull up driver
    8.
    发明授权
    Diode-transistor active pull up driver 失效
    二极管 - 三极管主动上拉驱动器

    公开(公告)号:US4417159A

    公开(公告)日:1983-11-22

    申请号:US293830

    申请日:1981-08-18

    摘要: A driver circuit for a capacitively loaded line employs the charge storage capacitance of a diode for raising the base of a driver transistor above the circuit power supply voltage level so as to pull up the line to within a transistor base-emitter voltage drop of the power supply voltage level. The driver is easily fabricated in integrated circuit form, as no capacitors, either on or off chip, are required.The driver circuit includes a driver transistor, the collector of which is connected to the power supply and the emitter of which is connected to the line. A switching transistor has an input voltage applied between its base and emitter. A diode is connected between the switching and driver transistors, the anode being connected to the base of the driver transistor, and the cathode being connected to the collector of the switching transistor.In response to a first input signal, the switching transistor turns on, forward biasing the diode and building up a voltage thereon as a result of the diode's charge storage capacitance. In response to a second input signal, the switching transistor turns off, raising the anode to the power supply voltage, and raising the cathode (and the base of the driver transistor connected thereto) to a voltage higher than the power supply voltage. The emitter of the driver transistor (and the line connected thereto) is thus pulled up to a value nominally approaching the power supply voltage, despite the base-emitter voltage drop of the driver transistor.

    摘要翻译: 用于电容负载线路的驱动器电路采用用于将驱动晶体管的基极升高到电路电源电压电平以上的二极管的电荷存储电容,以便将线上拉到功率的晶体管基极 - 发射极电压降内 电源电压电平。 驱动器易于以集成电路形式制造,因为不需要电源或芯片上的电容器。 驱动器电路包括驱动晶体管,其集电极连接到电源,其发射极连接到线路。 开关晶体管具有施加在其基极和发射极之间的输入电压。 二极管连接在开关晶体管和驱动晶体管之间,阳极连接到驱动晶体管的基极,阴极连接到开关晶体管的集电极。 响应于第一输入信号,开关晶体管导通,由于二极管的电荷存储电容,正向偏置二极管并在其上建立电压。 响应于第二输入信号,开关晶体管截止,将阳极升高到电源电压,并将阴极(以及连接到其的驱动晶体管的基极)升高到高于电​​源电压的电压。 因此,尽管驱动晶体管的基极 - 发射极电压降,驱动晶体管(及其连接的线)的发射极被上拉到标称接近电源电压的值。

    Power control means for eliminating circuit to circuit delay differences
and providing a desired circuit delay
    9.
    发明授权
    Power control means for eliminating circuit to circuit delay differences and providing a desired circuit delay 失效
    功率控制装置,用于消除电路与电路延迟差异并提供所需的电路延迟

    公开(公告)号:US4346343A

    公开(公告)日:1982-08-24

    申请号:US150762

    申请日:1980-05-16

    摘要: An on chip delay regulator circuit which varies the power in logic or array circuits on the chip so as to minimize, or eliminate, chip to chip circuit speed differences caused by power supply variations and/or lot to lot process differences, temperature, etc.The on chip delay regulator accomplishes this by comparing a reference signal to an on chip generated signal which is sensitive to power supply changes, lot to lot process changes, temperature, etc. The comparison creates an error signal which is used to change the power (current or voltage) supplied to the on chip circuits. By changing the circuit power, the circuit speed (gate delay) is increased or decreased as necessary to maintain a relatively constant circuit speed on each chip.For example, a plurality of integrated circuit chips each contain an on chip delay regulator. The on chip delay regulator on each chip of said plurality of integrated circuit chips receives and responds to the same signal (or clock). Each chip provides a discrete on chip generated signal related to the parameters of the chip. The gate delay (or speed) of the circuitry on each chip is determined by its on chip delay regulator under control of the common reference signal (or clock).

    摘要翻译: 一种片上延迟调节器电路,其改变芯片上的逻辑或阵列电路中的功率,以便最小化或消除由电源变化和/或批处理差异,温度等引起的芯片对芯片电路速度差异。 片上延迟调节器通过将参考信号与对电源变化敏感的片上产生信号进行比较来实现,这些信号对于批次处理变化,温度等是很敏感的。比较产生用于改变功率的误差信号( 电流或电压)提供给片上电路。 通过改变电路功率,根据需要增加或减小电路速度(门延迟),以在每个芯片上保持相对恒定的电路速度。 例如,多个集成电路芯片各自包含片上延迟调节器。 所述多个集成电路芯片的每个芯片上的片上延迟调节器接收并响应相同的信号(或时钟)。 每个芯片提供与芯片参数相关的离散片上产生的信号。 每个芯片上的电路的门延迟(或速度)由其片上延迟调节器在公共参考信号(或时钟)的控制下确定。

    Method and resulting structure for selective multiple base width
transistor structures
    10.
    发明授权
    Method and resulting structure for selective multiple base width transistor structures 失效
    选择性多基宽度晶体管结构的方法和结果

    公开(公告)号:US4535531A

    公开(公告)日:1985-08-20

    申请号:US360730

    申请日:1982-03-22

    摘要: A process is described which permits the fabrication of very narrow base width bipolar transistors in selected areas of an integrated circuit chip and bipolar transistors of wider base width on other selected areas of the same integrated circuit chip. The ability to selectively vary the transistor characteristics from one region of an integrated circuit chip to another provides a degree of freedom for design of integrated circuits which is valuable. The bipolar transistors on an integrated circuit chip are processed up to the point of emitter formation using conventional techniques. But, prior to the emitter formation, the base area which is to be the emitters of the selected region having the very narrow base transistors is dry etched using reactive ion etching. The existing silicon nitride/silicon dioxide layers with the emitter opening therein are used as the etching mask for this reactive ion etching procedure. Once the etching is completed to the desired depth, the normal processing is resumed to form the emitter and rest of the metallization.

    摘要翻译: 描述了一种方法,其允许在集成电路芯片的选定区域中制造非常窄的基极宽度双极晶体管,并且在同一集成电路芯片的其它选定区域上制造宽基极宽度的双极晶体管。 将晶体管特性从集成电路芯片的一个区域选择性地变化到另一个区域的能力提供了有价值的集成电路设计的自由度。 使用常规技术将集成电路芯片上的双极晶体管加工成发射点形成点。 但是,在发射极形成之前,将使用反应离子蚀刻干法蚀刻作为具有非常窄的基极晶体管的选定区域的发射极的基极区域。 将其中具有发射极开口的现有氮化硅/二氧化硅层用作该反应离子蚀刻程序的蚀刻掩模。 一旦蚀刻完成到期望的深度,则恢复正常处理以形成发射器和金属化的其余部分。