Patent ID: 7005711
Filing Date: 2006-02-28
Classification: H03K

Abstract:
1. In a logic gate including at least one first dopant type channel insulated gate field effect transistor (IGFET), the first dopant type channel IGFET having an IGEET gate terminal coupled to an input node, a first IGFET source/drain terminal connected to a first potential, and a second IGFET source/drain terminal coupled to an output node, the improvement comprising: a negative differential resistance field-effect ransistor (NDR-FET) element that also has a first dopant-type channel, said NDR FET element including a first NDR FET source/drain terminal connected to a second potential, a second NDR source/drain terminal connected to the output node, and an NDR gate terminal connected to the input node; wherein the NDR FET element operates as a pull-up device for the logic gate, so that the logic gate is formed entirely of active devices having a common channel dopant type.