ANTIFUSE PROGRAMMING TECHNOLOGY PDF

An Antifuse programming technology is predominantly associated with _____. Antifuse technology is nonvolatile, so it is live at power-up and programming services, either from Actel or from other vendors, are also used. recommended programming practices for antifuse devices. For SoC Antifuse technology is nonvolatile, so it is live at power-up and inherently very secure.

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In the same fashion as with the Christmas lights described above, if the lamp failed, the entire voltage of the street lighting circuit thousands of volts was imposed across the insulating film in the cutout, causing it to rupture.

By using this site, you agree to the Terms of Use and Privacy Policy. Each bit contains both a fuse and an antifuse and is programmed by triggering one of the two. Views Read Edit View history. It is therefore necessary to shift the manufacturing tolerances so that the lowest-value typically made is equal to or larger than the desired value. When the failed lamp was finally changed, a new piece of film was also installed, once again separating the electrical contacts in the cutout.

The spike is formed on and slightly below the silicon surface, just below the passivation layer without damaging it. The antifuse is usually triggered using an approximately 5 mA current. A specialized structure optimized for the purpose can be employed where the antifuse is an integral part of the design. The conductive shunt therefore does not compromise integrity and reliability of the semiconductor device.

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The p-n junction that serves as such diode is overloaded with a current spike and overheated. QuickLogic Corporation refers to their antifuses as “ViaLinks” because blown fuses create a connection between two crossing layers of wiring on the chip in the same way that a via on programmijg printed circuit board creates a connection between copper layers.

When the bulb blows, the entire mains voltage is applied across the single blown lamp. Certain programmable logic devices PLDssuch as structured ASICsuse antifuse technology to configure logic circuits program,ing create a customized design from a standard IC design.

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Antifuse – Wikipedia

Also circuits built via the antifuse’s permanent conductive paths may be progamming than similar circuits implemented in PLDs using SRAM technology. Unlike Christmas lights, the circuit usually contained an automatic device to regulate the electric current flowing in the circuit, preventing the current from rising as additional lamps burned out.

Articles needing additional references from May All articles needing additional references. This article needs additional citations for verification. Antifuses may be used in programmable read-only memory PROM. Zener zap is frequently employed in mixed-signal circuits for trimming values of analog components.

FPGAs in computer

Zener diodes can orogramming used as antifuses. Because progarmming series string would be rendered inoperable by a single lamp failing, each bulb has an antifuse installed within it. The antifuse is made using wire with progfamming high resistance coating tecjnology this wire is coiled over the two vertical filament support wires inside the bulb. A standard NPN transistor structure is often used in common bipolar processes as the antifuse.

In this way, the failed lamp was bypassed and illumination restored to the rest of the street. An antifuse is an electrical device that performs the opposite function to a fuse. The larger, traditional, C7 and C9 style lights are wired in parallel and are rated to operate directly at mains voltage.

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They may be less susceptible to alpha particles which can cause circuits to malfunction. By this approach, it is possible only to lower the value of the resulting resistor. In a similar fashion to that of Christmas tree lights, before the advent of high-intensity discharge lampsstreet light circuits using incandescent light bulbs were often operated as high-voltage series circuits.

Each hechnology street-lamp was equipped with a film cutout ; a small disk of insulating film that separated two contacts connected to the two wires leading to the lamp.

Ordinarily for operation from mains voltagesthe lamps are wired in series.

Formation of the conductive channel is performed by a dielectric breakdown forced by a high voltage pulse. Antifuses are best known for their use in mini-light or miniature style low-voltage Christmas tree lights.

Occasionally, the insulation fails to break down on its own, but tapping the blown lamp will usually finish the job. Programking resulting resistance of the junction is in the range of 10 ohms. When a sufficiently high voltage is applied across the amorphous silicon it is turned into a polycrystalline silicon-metal alloy with a low resistancewhich is conductive.