摘要:
Techniques are disclosed for forming tunneling transistors including source and drain (S/D) regions processed through contact trenches. The techniques allow for final S/D material formation to be delayed in the process flow, thereby helping to prevent dopant diffusion from that S/D material into the channel region. In addition, in some cases, material bandgap engineering may be used to enhance the ability of tunneling transistor devices, such as tunnel field-effect transistors (TFETs) and Fermi filter FETs (FFFETs), to resist off-state leakage currents from source to drain (through the channel) and from source to ground/substrate. Such material bandgap engineering can incorporate a material-based band offset component by using different material in the S/D regions to control off-state leakage, to expand upon the limited energy band offset achievable using single-composition material configurations. Increasing the band offset can increase the barrier that carriers must overcome to reach the channel region, thereby reducing off-state leakage.
摘要:
Described is an apparatus which comprises a first shallow trench isolation (STI) region; a first gated FinFET device including a source region of a first conductivity type; and a second gated FinFET device including a drain region of a second conductivity type, wherein the source region of the first gated FinFET device is adjacent to the drain region of the second gated FinFET device such that the source region of the first gated FinFET device is separated by the drain region of the second gated FinFET device via the first STI region.
摘要:
A method for fabrication of vertical nanowire MOSFETs is considered using a gate-last process. The top ohmic electrode is first fabricated and may be used as a mask to form a gate recess using etching techniques. The gate is thereafter formed allowing a large degree in access resistance reduction.
摘要:
A vertically integrated transistor device increases the effective active area of the device to improve the performance characteristics of the device. The transistor device may include a plurality of gate elements, a plurality of source-drain elements extending parallel to the plurality of gate elements and horizontally spaced therefrom; and a plurality of fin elements extending parallel to the plurality of gate elements and vertically spaced therefrom, wherein each of the plurality of fin elements is horizontally spaced a first distance from each of the other ones of the plurality of fin elements.
摘要:
Described is a memory bit-cell comprising: a storage node; an access transistor coupled to the storage node; a capacitor having a first terminal coupled to the storage node; and one or more negative differential resistance devices coupled to the storage node such that the memory bit-cell is without one of a ground line or a supply line or both.
摘要:
Multiplexor circuits with Tunneling field effect transistors (TFET) devices are described. For example, a multiplexor circuit includes a first set of tunneling field effect transistor (TFET) devices that are coupled to each other. The first set of TFET devices receive a first data input signal, a first select signal, and a second select signal. A second set of TFET devices are coupled to each other and receive a second data input signal, the first select signal, and the second select signal. An output terminal is coupled to the first and second set of TFETs. The output terminal generates an output signal of the multiplexor circuit.
摘要:
본 발명은 반도체 정류 디바이스와 그 제조 방법을 개시한다. 본 발명의 반도체 정류 디바이스는 낮은 순방향 전압, 낮은 누설 전류 및 빠른 리버스 리커버리 특성을 가지며, 채널을 형성하는 개선된 공정에 의하여 제조 공정을 단순화할 수 있고 수율을 향상할 수 있다. 그리고, 본 발명의 반도체 정류 디바이스는 채널을 형성하는 것을 정확히 제어할 수 있다.
摘要:
Technologies are generally described herein generally relate to tunnel field-effect transistor (TFETs) structures with a gate-on-germanium source (GoGeS) on bulk silicon substrate for sub 0.5V (V DD ) operations. In some examples, the GoGeS structure may include an increase in tunneling area and, thereby, a corresponding increases in the ON-state current I ON . In order to achieve supersteep sub-threshold swing, both the lateral tunneling due to gate electric-field and the non-uniform tunneling at the gate-edge due to field-induced barrier lowering (FIBL) may be suppressed through selection of component dimension in the device structure. Example devices may be fabricated using CMOS fabrication technologies with the addition of selective etching in the process flow.