Read-Only Memories TRIZ Cases

Reference memory cells match storage cell currents via mirror circuits, resolving discrepancies that cause read errors in flash memory arrays.

Dynamic address rotation balances write times across memory cells, reducing resource utilization during error correction cycles.

Applying pre-drain select line voltage initializes unselected memory string potentials, preventing program disturbance during verification operations.

A shared latch circuit stores input and repair addresses using test determining and control signal generation circuits.

A memory subsystem tracks read operations and scans alternating wordline pairs to detect stress levels.

A memory controller manages data integrity during sudden power-off events.

Pre-reading memory cells detects single or multiple bit storage modes, enabling adaptive main reads that eliminate flag cells and reduce device area.

Segmenting programming operations into unselected and selected wordline phases reduces capacitive coupling effects that degrade adjacent memory cells.

A memory page buffer senses program states using sequential evaluation and sensing operations.

A semiconductor memory device performs a preprogram operation on target cells to reduce interference from adjacent memory cells.

A nonvolatile memory control circuit segments voltage activation and deactivation phases to enable independent command processing.

A negative counter voltage applied to selected word lines during program verification steps in three-dimensional nonvolatile memory arrays.

A semiconductor memory control circuit applies distinct electrical potentials to word lines for data discrimination.

A resistive memory input circuit limits bitline voltage during write operations using a sensing output signal.

Simultaneous writing of paired OTP memory cells improves productivity while individual verification detects writing deficiencies to prevent read failures.

Programmable chip enable and address circuitry isolates defective memory dies and readdresses functional units to maintain continuous addressing ranges.

Parallel read operations reduce control logic complexity and improve bit-flip immunity through integrated local buffering.

Distinct voltage levels adjust Fermi levels in vertical stacks, enabling random access while resolving integration density versus power consumption trade-offs.

Auto-referenced read technique adjusts reference voltage based on cell voltage distribution statistics.

Measuring saturation current flowing through analog memory cells to deduce wear level, eliminating inaccurate P/E cycle tracking.

Reference cells monitor voltage levels during programming, enabling iterative charging that reduces data error rates in multi-level storage.

A vertical NAND flash memory programming method applies dynamic pre-pulses to unselected string selection lines based on operation modes.

A 3D NAND memory programming method applies a program voltage to a selected word line before applying a pass voltage to unselected word lines.

A one-time programmable memory cell uses a PIN diode to detect logic states via forward current differences.

Adjusting selected word line and select gate ramp down timing eliminates channel gradients that cause hot electron injection read disturb.

Shared port blocks merge bit cells to share sense amplifiers, resolving slow voltage detection in non-volatile static random access memory.

Pre-charging selected word lines reduces programming time while avoiding peak current spikes from capacitive coupling.

Asymmetric routing of periodic control signals suppresses electromagnetic interference while maintaining high data rates for USB devices.

A memory device operating method identifies bad word lines and designates adjacent conductors as prohibited or read-only to preserve storage capacity.

A smart self-repair device analyzes fail modes to select row or column redundancy repairs.

A redundant non-volatile memory cell arrangement mitigates stress induced leakage current through parallel or series floating gate configurations.

A bit line selection circuit configures even and odd bit lines with adjacent non-selected pairs to shield signals.

Shielding voltage suppresses leakage current in downstream transistors, enabling accurate bit state evaluation via differential measurement.

Segmented programming and decoupling methods reduce cell-to-cell coupling interference in 3D NAND flash memory.

A page buffer precharges bit lines to specific voltage levels based on stored data states.

A microprocessor implements re-writeable non-volatile state using program-accessible blowable fuses managed by a Boolean logic unit.

Dynamic word line voltage ramping improves channel boosting while reducing program disturb caused by leakage currents.

A page buffer uses an additional latch to store data and control signals.

Single level cells buffer voltage differences to prevent current leakage while maintaining high memory density.

A current mirror circuit mirrors reference current into a dummy device to generate time control signals adapted to test device size.

Segmenting high voltage across unselected cells minimizes leakage current in dense 3D passive element memory arrays.

Aggregating error rates across write cycles isolates defective physical units, preserving usable block capacity.

Dynamic burn voltage monitoring eliminates use bits, reducing chip area while preventing reliability degradation from simultaneous burning.

A memory verification system reads retention margin bits to detect over-programming errors during programming.

Circuitry generates unique memory patterns by measuring threshold voltage differences across programmed cells.

Pre-compensates flash memory threshold voltage using aggressor bits from neighbor cells to mitigate capacitive coupling interference.

Applying program commands to multiple NAND flash memory chips without waiting for previous operations to complete, reducing overall operating time.

Applying a threshold-dependent control voltage to adjacent cells prevents hot carrier overshoot disturbance during flash memory programming.

An adaptive programming method adjusts the starting voltage for flash memory cells based on detected speed.

Segmented bit lines and source lines enable simultaneous high-speed data read operations while suppressing source noise interference.