Abstract:
A semiconductor device includes a plurality of gates formed upon a semiconductor substrate that includes a plurality of outer active areas (e.g. CMOS/PMOS areas, source/drain regions, etc.) and one or more inner active areas. An isolator is formed upon one or more inner gates associated with the one or more inner active areas. A contact bar electrically connects the outer active areas and/or outer gates and is formed upon the isolator. The isolator electrically insulates the contact bar from the one or more inner active areas and/or the one or more inner gates.
Abstract:
A method for fabricating an interconnect function array includes forming a first plurality of conductive lines on a substrate, forming an insulator layer over the first plurality of conductive lines and the substrate, removing portions of the insulator layer to define cavities in the insulator layer that expose portions of the substrate and the first plurality of conductive lines, wherein the removal of the portions of the insulator layer results in a substantially random arrangement of cavities exposing portions of the substrate and the first plurality of conductive lines, depositing a conductive material in the cavities, and forming a second plurality of conductive lines on portions of the conductive material in the cavities and the insulator layer.
Abstract:
A method for fabricating an interconnect function array includes forming a first plurality of conductive lines on a substrate, forming an insulator layer over the first plurality of conductive lines and the substrate, removing portions of the insulator layer to define cavities in the insulator layer that expose portions of the substrate and the first plurality of conductive lines, wherein the removal of the portions of the insulator layer results in a substantially random arrangement of cavities exposing portions of the substrate and the first plurality of conductive lines, depositing a conductive material in the cavities, and forming a second plurality of conductive lines on portions of the conductive material in the cavities and the insulator layer.
Abstract:
A method of forming an electronic fuse including forming an Mx level including a first and a second Mx metal, forming a first Mx+1 dielectric above the Mx level, forming a conductive path on a portion of the first Mx+1 dielectric, forming a second Mx+1 dielectric above the first Mx+1 dielectric and above the conductive path, the first and second Mx+1 dielectrics together form an Mx+1 level, forming a first and a second via in the Mx+1 level, the conductive path extending from the first via to the second via and partially encircling the first via, and forming a first and second Mx+1 metal in the Mx+1 level, the first via extending vertically and electrically connecting the first Mx metal to the first Mx+1 metal, and the second via extending vertically and electrically connecting the second Mx metal to the second Mx+1 metal.
Abstract:
A Physical Unclonable Function (PUF) semiconductor device includes a semiconductor substrate, and a well formed in the semiconductor substrate. The well includes a first region having a first concentration of ions, and at least one second region having a second concentration that is less than the first concentration. First and second FETs are formed on the well. The first and second FETs have a voltage threshold mismatch with respect to one another based on the first region and the at least one second region.
Abstract:
A stack of a dielectric material layer and a metallic material layer are formed on a substrate. A first organic planarization layer, a non-metallic hard mask layer, and a photoresist layer are sequentially deposited over the metallic material layer. The photoresist layer is lithographically patterned, and the pattern in the photoresist layer is transferred through the non-metallic hard mask layer, the first organic planarization layer, and the metallic material layer to form a cavity. A second organic planarization layer is deposited within the cavity and over remaining portions of the photoresist layer. The second organic planarization layer and the photoresist layer are recessed, and the non-metallic hard mask layer is subsequently removed. Remaining portions of the first and second organic planarization layers are simultaneously removed to provide physically exposed surfaces of the patterned metallic material layer and a top surface of the dielectric material layer.
Abstract:
The profile of a via can be controlled by forming a profile control liner within each via opening that is formed into a dielectric material prior to forming a line opening within the dielectric material. The presence of the profile control liner within each via opening during the formation of the line opening prevents rounding of the corners of a dielectric material portion that is present beneath the line opening and adjacent the via opening.
Abstract:
A method and structure for preventing integrated circuit failure due to electromigration and time dependent dielectric breakdown is disclosed. A randomly patterned metal cap layer is selectively formed on the metal interconnect lines (typically copper (Cu)) with an interspace distance between metal cap segments that is less than the critical length (for short-length effects). Since the diffusivity is lower for the Cu/metal cap interface than for the Cu/dielectric cap interface, the region with a metal cap serves as a diffusion barrier.
Abstract:
An electronic fuse structure including an Mx level comprising an Mx metal, and an Mx+1 level above the Mx level, the Mx+1 level including an Mx+1 metal and a via electrically connecting the Mx metal to the Mx+1 metal in a vertical orientation, where the Mx+1 metal comprises a thick portion and a thin portion, and where the Mx metal, the Mx+1 metal, and the via are substantially filled with a conductive material.
Abstract:
A semiconductor device includes a plurality of gates formed upon a semiconductor substrate that includes a plurality of outer active areas (e.g. CMOS/PMOS areas, source/drain regions, etc.) and one or more inner active areas. An isolator is formed upon one or more inner gates associated with the one or more inner active areas. A contact bar electrically connects the outer active areas and/or outer gates and is formed upon the isolator. The isolator electrically insulates the contact bar from the one or more inner active areas and/or the one or more inner gates.