摘要:
A semiconductor device (200) includes: an electrical fuse (100) including: a lower layer interconnect (120) formed on a substrate; a via (130) provided on the lower layer interconnect (120) so as to be connected to the lower layer interconnect (120); and an upper layer interconnect (110) provided on the via (130) so as to be connected to the via (130), the electrical fuse being cut, in a state after being cut, through formation of a flowing-out portion, the flowing-out portion being formed when an electrical conductor forming the upper layer interconnect (110) flows outside the upper layer interconnect (110); and a guard upper layer interconnect (152) (conductive heat-absorbing member) formed in at least the same layer as the upper layer interconnect (110), for absorbing heat generated in the upper layer interconnect (110).
摘要:
A semiconductor device includes an electric fuse and first and second large area wirings for applying a voltage to the electric fuse. The electric fuse includes a fuse unit which includes an upper-layer fuse wiring, a lower-layer fuse wiring, and a via connecting the upper-layer fuse wiring and the lower-layer fuse wiring, an upper-layer lead-out wiring which connects the upper-layer fuse wiring and the first large area wiring and has a bent pattern, and a lower-layer lead-out wiring which connects the lower-layer fuse wiring and the second large area wiring and has a bent pattern.
摘要:
A semiconductor device using resistive random access memory (ReRAM) elements and having improved tamper resistance is provided. The semiconductor device is provided with a unit cell which stores one bit of cell data and a control circuit. The unit cell includes n ReRAM elements (n being an integer of 2 or larger). At least one of the ReRAM elements is an effective element where the cell data is recorded. In reading the cell data, the control circuit at least selects the effective element and reads data recorded thereon as the cell data.
摘要:
A semiconductor device includes an electric fuse and first and second large area wirings for applying a voltage to the electric fuse. The electric fuse includes a fuse unit which includes an upper-layer fuse wiring, a lower-layer fuse wiring, and a via connecting the upper-layer fuse wiring and the lower-layer fuse wiring, an upper-layer lead-out wiring which connects the upper-layer fuse wiring and the first large area wiring and has a bent pattern, and a lower-layer lead-out wiring which connects the lower-layer fuse wiring and the second large area wiring and has a bent pattern.
摘要:
In a method of manufacturing a semiconductor device, element properties of an element property extraction pattern formed on a semiconductor wafer is extracted as element properties of a current control element corresponding to the element property extraction pattern. A supply energy to the current control element is set which is formed between nodes on the semiconductor wafer, based on the extracted element properties. The set supply energy is supplied to the current control element to irreversible control an electrical connection between the nodes through the device breakdown by the current control element.
摘要:
A semiconductor device (200) includes an electric fuse (100) including: an upper layer fuse interconnect (112) formed on a substrate (not shown); a lower layer fuse interconnect (122); and a via (130) which is connected to one end of the upper layer fuse interconnect (112) and connects the upper layer fuse interconnect (112) and the lower layer fuse interconnect (122). The upper fuse interconnect (112) includes a width varying region (118) having a small interconnect width on a side of the one end.
摘要:
A semiconductor device has a conventional NMOS transistor and an NMOS transistor functioning as an anti-fuse element and having an n type channel region. The conventional NMOS transistor is equipped with an n type extension region and a p type pocket region, while the anti-fuse element is not equipped with an extension region and a pocket region. This makes it possible to improve the performance of the transistor and at the same time improve the characteristics of the anti-fuse element after breakdown of its gate dielectric film.
摘要:
A semiconductor device (200) includes an electric fuse (100) including: an upper layer fuse interconnect (112) formed on a substrate (not shown); a lower layer fuse interconnect (122); and a via (130) which is connected to one end of the upper layer fuse interconnect (112) and connects the upper layer fuse interconnect (112) and the lower layer fuse interconnect (122). The upper fuse interconnect (112) includes a width varying region (118) having a small interconnect width on a side of the one end.
摘要:
A first semiconductor device is formed over a substrate and includes a first insulation film, a first electrode, and a first diffusion layer. A second semiconductor device is formed over a substrate and includes a second insulation film, a second electrode, and a second diffusion layer. The second electrode is coupled to the first electrode. A control transistor allows one of a source and a drain to be coupled to the first electrode and the second electrode, allows the other one of the source and the drain to be coupled to a bit line, and allows a gate electrode to be coupled to a word line. A first potential control line is coupled to the first diffusion layer and controls a potential of the first diffusion layer. A second potential control line is coupled to the second diffusion layer and controls a potential of the second diffusion layer.
摘要:
The semiconductor device includes: a substrate; an electric fuse that includes a lower-layer wiring formed on the substrate, a first via provided on the lower-layer wiring and connected to the lower-layer wiring, and an upper-layer wiring provided on the first via and connected to the first via, a flowing-out portion of a conductive material constituting the electric fuse being formed in a cut-off state of the electric fuse; and a heat diffusion portion that includes a heat diffusion wiring that is formed in the same layer as one of the upper-layer wiring and the lower-layer wiring and is placed on a side of the one of the upper-layer wiring and the lower-layer wiring, the heat diffusion portion being electrically connected to the one of the upper-layer wiring and the lower-layer wiring.