An integrated circuit device includes an anti-fuse device. The anti-fuse device includes a cup-shaped bottom anti-fuse electrode, a cup-shaped anti-fuse insulator formed in an opening defined by the cup-shaped bottom anti-fuse electrode, and a top anti-fuse electrode formed in an opening defined by the cup-shaped anti-fuse insulator. A thickness of the cup-shaped anti-fuse insulator is less than 200 Å.

A layout structure of an anti-fuse array at least includes an array circuit area and a functional circuit area. The array circuit area is electrically connected with the functional circuit area. The functional circuit area is located on at least one side of the array circuit area, and at least one side of the array circuit area is located on an edge of the layout structure. The array circuit area includes an anti-fuse array composed of anti-fuse cells, and the array circuit area is configured to provide the anti-fuse cells under different column addresses to the functional circuit area. The functional circuit area is configured to fuse the anti-fuse cells under the different column addresses.

An anti-fuse circuit includes the following: a first transistor, and at least one parasitic transistor and at least one parasitic triode that are connected to the first transistor. The at least one parasitic transistor and the at least one parasitic triode are connected to a first node.

A semiconductor structure and a method for manufacturing the semiconductor structure are provided. The semiconductor structure includes: a substrate including a first doped region; a first isolation structure located in the first doped region, a depth of the first isolation structure being greater than that of the first doped region; a first gate structure located on the surface of the substrate of the first doped region and spanning the first isolation structure, a projection width of the first gate structure on the substrate being larger than that of the first isolation structure on the substrate; and second gate structures located on the surface of the substrate and at both sides of the first gate structure.

A one-time programmable nonvolatile memory cell includes a substrate providing a first conductivity type well and a second conductivity type well, a first MOS transistor having a floating gate and a gate oxide, and an auxiliary gate and a gate oxide formed by extending one end of the floating gate and the gate oxide of the first MOS transistor from an edge of the first active region, along a second direction perpendicular to the first direction, passing through the isolation region until to cover a part or an entire of the second active region. The first and the second active regions are separated by an isolation region, and the first and second active regions and the isolation region are arranged parallel to each other along a first direction. The memory cell has an improved structure and optimized performance and a reduced size.

An anti-fuse device including a substrate, a doped region, a dielectric layer, a first contact, an anti-fuse material layer, and a second contact is provided. The doped region is located in the substrate. The dielectric layer is located on the substrate and has a first opening and a second opening. The first opening and the second opening respectively expose the doped region. The first contact is located in the first opening. The anti-fuse material layer is located between the first contact and the doped region. The second contact is located in the second opening and is electrically connected to the doped region.

In a semiconductor device, a device structure is positioned over a substrate, where the device structure includes devices. A wiring structure of the semiconductor device is positioned over the substrate and coupled to at least one of the devices. The wiring structure includes at least one of programmable lines and programmable vertical interconnects, where the programmable lines extend along a top surface of the substrate and the programmable vertical interconnects extend along a vertical direction perpendicular to the top surface of the substrate. The programmable lines and the programmable vertical interconnects include a programmable material having a modifiable resistivity in that the programmable lines and the programmable vertical interconnects change between being conductive and being non-conductive in responsive to a current pattern delivered to the programmable lines and the programmable vertical interconnects.

A memory device includes a substrate, a semiconductor fin over the substrate and extending in a first direction, and a first gate electrode and a second gate electrode over the substrate and extending in a second direction. The semiconductor fin extends through the second gate electrode and terminates on the first gate electrode at one end. The memory device further includes a first conductive via over and electrically coupled to the first gate electrode. The one end of the semiconductor fin is surrounded by the first gate electrode.

A method for fabricating an one time programmable (OTP) device includes the steps of: forming a first gate structure and a second gate structure extending along a first direction on a substrate; forming a diffusion region adjacent to two sides of the first gate structure and the second gate structure; forming a silicide layer adjacent to the first gate structure; and patterning the first gate structure for forming a third gate structure and a fourth gate structure.

The present application discloses a semiconductor device with a programmable unit and a method for fabricating the semiconductor device. The semiconductor device includes a substrate comprising a first region and a second region; a first semiconductor element positioned in the first region of the substrate; a second semiconductor element positioned in the first region of the substrate and electrically coupled to the first semiconductor element; and a programmable unit positioned in the second region and electrically connected to the first semiconductor element.