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    • 1. 发明授权
    • Semiconductor resistor using back-to-back zener diodes
    • 半导体电阻采用背对背齐纳二极管
    • US5760450A
    • 1998-06-02
    • US828238
    • 1997-03-31
    • Godefridus A. M. HurkxJan W. SlotboomAndreas H. Montree
    • Godefridus A. M. HurkxJan W. SlotboomAndreas H. Montree
    • H01L27/04H01L21/822H01L23/64H01L27/08H01L29/8605H01L29/866H01L29/78
    • H01L29/866H01L27/0814H01L29/8605
    • Very high resistance values may be necessary in integrated circuits, for example in the gigaohm range, for example for realizing RC times of 1 ms to 1 s. Such resistance values cannot or substantially not be realized by known methods in standard i.c. processes because of the too large space occupation. In addition, known embodiments are usually strongly dependent on the temperature. According to the invention, therefore, two zener diodes (10, 4; 11, 4) connected back-to-back are used as the resistor. The current through each zener diode is mainly determined by band--band tunneling when the voltage is not too high, for example up to approximately 0.2 V. This current has a value such that resistors in the giga range can be readily realized on a small surface area. Since the current is mainly determined by intrinsic material properties of silicon, the temperature dependence is very small. The resistor may furthermore be manufactured in any standard CMOS process or bipolar process.
    • 在集成电路中可能需要非常高的电阻值,例如在高戈范围内,例如用于实现1ms至1s的RC时间。 这种电阻值不能或基本上不能通过标准电流中的已知方法来实现。 因为占用空间太大。 此外,已知的实施方案通常强烈地依赖于温度。 因此,根据本发明,使用背对背连接的两个齐纳二极管(10,4; 11,4)作为电阻器。 通过每个齐纳二极管的电流主要由电压不太高(例如高达约0.2V)时的带带隧穿确定。该电流具有这样的值,使得可以在小的表面上容易地实现千兆范围内的电阻 区。 由于电流主要取决于硅的固有材料性质,因此温度依赖性非常小。 此外,电阻器可以以任何标准CMOS工艺或双极工艺制造。
    • 4. 发明授权
    • Charge carrier stream generating electronic device and method
    • 电荷载流子流生成电子器件及方法
    • US08362821B2
    • 2013-01-29
    • US12743400
    • 2008-11-12
    • Tony VanhouckeGodefridus A. M. HurkxJan W. Slotboom
    • Tony VanhouckeGodefridus A. M. HurkxJan W. Slotboom
    • H03K17/00H03K17/60
    • G11C13/0004
    • An electronic device comprising a generator for generating a stream of charge carriers. The generator comprises a bipolar transistor having an emitter region, a collector region and a base region oriented between the emitter region and the collector region, and a controller for controlling exposure of the bipolar transistor to a voltage in excess of its open base breakdown voltage (BVCEO) such that the emitter region generates the stream of charge carriers from a first area being smaller than the emitter region surface area. The electronic device may further comprise a material arranged to receive the stream of charge carriers for triggering a change in a property of said material, the emitter region being arranged between the base region and the material.
    • 一种电子设备,包括用于产生电荷载流子的发生器。 发生器包括双极晶体管,其具有发射极区域,集电极区域和定向在发射极区域和集电极区域之间的基极区域;以及控制器,用于控制双极晶体管的暴露于超过其开路基极击穿电压的电压( BVCEO),使得发射极区域从小于发射极区域表面积的第一区域产生电荷载流子。 电子设备还可以包括布置成接收电荷载流子的材料,用于触发所述材料的性质的变化,发射极区域布置在基底区域和材料之间。
    • 6. 发明授权
    • Semiconductor device with a tunnel diode and method of manufacturing same
    • US06242762B1
    • 2001-06-05
    • US09078231
    • 1998-05-13
    • Adam R. BrownGodefridus A. M. HurkxWiebe B. De BoerJan W. Slotboom
    • Adam R. BrownGodefridus A. M. HurkxWiebe B. De BoerJan W. Slotboom
    • H01L29861
    • H01L29/885Y10S438/979
    • A semiconductor device with a tunnel diode (23) is particularly suitable for various applications. Such a device comprises two mutually adjoining semiconductor regions (2, 3) of opposed conductivity types and having doping concentrations which are so high that breakdown between them leads to conduction by means of tunnelling. A disadvantage of the known device is that the current-voltage characteristic is not yet steep enough for some applications. In a device according to the invention, the portions (2A, 3A) of the semiconductor regions (2, 3) adjoining the junction (23) comprise a mixed crystal of silicon and germanium. It is surprisingly found that the doping concentration of both phosphorus and boron are substantially increased, given the same amount of dopants being offered as during the formation of the remainder of the regions (2, 3). The tunnelling efficiency is substantially improved as a result of this, and also because of the reduced bandgap of said portions (2A, 3A), and the device according to the invention has a much steeper current-voltage characteristic both in the forward and in the reverse direction. This opens perspectives for inter alia an attractive application where the tunnelling pn junction (23) is used as a transition between two conventional diodes, for example pn or pin diodes, which are used one stacked on the other and which can be formed in a single epitaxial growing process thanks to the invention. The portions (2A, 3A) adjoining the tunnelling junction (22) are preferably 5 to 30 nm thick and comprise between 10 and 50 at % germanium. The doping concentration may be 6×1019 or even more than 1020 at/cm3. The invention further relates to a simple method of manufacturing a device according to the invention. This is preferably done at a temperature of between 550° C. and 800° C.