Integrated Circuitry Components, Switches, and Memory Cells

A component of integrated circuitry, comprising:

• a first electrode and a second electrode, the first and second electrodes being separated from one another by a space;
• a graphene structure conductively connected to both of the first and second electrodes, and extending across the space;
• a first electrically conductive projection extending into the space from the first electrode, and extending only partially across the space;
• a second electrically conductive projection extending into the space from the second electrode, and extending only partially across the space;
• a region of the first projection overlapping a region of the second projection;
• the graphene structure being between the overlapping regions of the first and second projections;
• and
• ferroelectric material laterally between the graphene structure and at least one of the first and second projections within the overlapping regions.

A memory cell comprising:

• a graphene structure extending longitudinally between a pair of electrodes and being conductively connected to both electrodes of said pair;
• first and second electrically conductive structures laterally outward of the graphene structure and on opposing sides of the graphene structure from one another;
• and
• ferroelectric material laterally outward of the graphene structure, the ferroelectric material being laterally between the graphene structure and at least one of the first and second electrically conductive structures, the first and second electrically conductive structures being configured to provide the memory cell into one of at least two memory states by application of an electric field across the graphene structure and the ferroelectric material.

A component of integrated circuitry, comprising:

• a first electrode and a second electrode, the first and second electrodes being separated from one another by a space;
• first and second graphene structures conductively connected to both of the first and second electrodes, and extending across the space;
• the first and second graphene structures being spaced-apart from one another by a gap;
• a first electrically conductive projection extending into the space from the first electrode, and extending only partially across the space, the first electrically conductive projection being on one side of the first graphene structure;
• a second electrically conductive projection extending into the space from the second electrode, and extending only partially across the space;
• the second electrode being between the first and second graphene structures, and being on an opposing side of the first graphene structure from the first electrically conductive projection;
• a third electrically conductive projection extending into the space from the first electrode, and extending only partially across the space;
• the third electrically conductive projection being on an opposing side of the second graphene structure from the second electrically conductive projection;
• a region of the first projection overlapping a region of the second projection;
• the first graphene structure being between the overlapping regions of the first and second projections;
• a region of the second projection overlapping a region of the third projection;
• the second graphene structure being between the overlapping regions of the second and third projections;
• and
• ferroelectric material laterally between at least one of a) the overlapping regions of the first and second projections, and b) the overlapping regions of the second and third projections.