Researchers at Sandia National Laboratories have developed an inexpensive, reliable and easy-to-manufacture class of dielectric films that have the capability of enabling programmable antifuses on integrated circuits (IC) at less cost and using easier-to-manufacture methods.
The new Sandia films enable single-mask level sub 5 Volt write antifuses that are compatible with leading-edge IC specifications.
Antifuses are nonvolatile, one-time programmable memories fabricated on ICs that are programmed with applied voltage. People who need specially designed chips that are generally not available can use inexpensive chips made with the Sandia-developed dielectric film and permanently program them after fabrication. This technology inexpensively enables such activities as post fabrication trimming, ROM programming, on-chip serial number identification, and data and program security. Chips with antifuse devices may also be used in high radiation environments or for long-term storage where flash memory would not be reliable.
Chris Burroughs | EurekAlert!
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