10 — Silixon RAM

Random-Access Memory

What It Is

Silixon RAM is Hardin Labs' non-volatile, high-bandwidth random-access memory technology, operating on a resistive switching principle within the Silixon-PDC ceramic matrix rather than the charge-trapping mechanism of conventional DRAM or NAND Flash. Each memory cell is a nano-scale pillar of Silixon ceramic material positioned between two metal electrodes. The resistance of the pillar toggles between a high-impedance state and a low-impedance state in response to applied voltage pulses — a mechanism known as resistive RAM (ReRAM) — where the Silixon ceramic's SiOC composition provides the switching oxide function while simultaneously delivering the mechanical robustness and radiation hardness required for operation in space, nuclear, and high-energy physics environments.

Cell Architecture and Density

The memory cell cross-section is a 10 nm × 10 nm pillar formed by electron-beam lithography and reactive ion etching of a thin Silixon film deposited on a standard silicon complementary metal-oxide semiconductor (CMOS) control wafer. The switching filament forms and dissolves reversibly within the SiOC matrix in response to field-driven oxygen vacancy migration. At 10 nm half-pitch, array densities above 10 Tbits/cm² are achievable — substantially beyond current 3D NAND Flash densities. Unlike DRAM, Silixon RAM retains data without any refresh current, making its standby power consumption effectively zero.

Performance

Write speed is below 10 ns per cell, comparable to SRAM, while read bandwidth scales linearly with array parallelism — enabling the Silixon Cube architecture to sustain memory-bandwidth-limited workloads that would bottleneck any DRAM-based system. Endurance exceeds 10¹² write-erase cycles per cell, far surpassing the 10³–10⁵ cycle lifetime of NAND Flash. The radiation total-dose tolerance of the SiOC matrix exceeds 10⁷ rad(Si), qualifying Silixon RAM for all known space radiation environments without error rate degradation.