Read-Only Memories TRIZ Cases

Measuring threshold voltage distributions at offset thresholds to detect memory disturb conditions in non-volatile storage arrays.

A read circuit measures signal node voltage change time to determine data values stored in variable impedance memory cells.

A nonvolatile memory device uses segmented floating gates to set distinct threshold voltages for multilevel data storage.

Voltage controlling elements limit unaddressed bit line potentials to prevent programming disturbance on adjacent cells.

A memory device applies distinct voltage parameters to word lines and bit lines based on the active multi-bit or single-bit operating mode.

A 5-transistor non-volatile memory cell design uses NMOS pass gate transistors to allow floating drain and source regions during programming.

Dynamic current switching stabilizes NAND source line voltage during sensing, resolving speed-stability trade-offs in multi-level cell arrays.

A memory device uses a monitoring circuit to calculate transistor threshold voltages and adjust operating parameters for stable data storage.

Segmenting bit state identification through multiple reads and mathematical operations resolves overlapping electrical characteristics to mitigate read errors.

Storing slope and y-intercept parameters reduces memory requirements while maintaining read value quality for NAND flash pages.

A memory controller uses mixed interconnection modes to transmit signals reliably.

Flash memory reads data by applying voltages adapted to threshold voltage shifts from leakage, ensuring accurate retrieval without increasing read time.

Segmenting memory cells into volatile and non-volatile portions retains initial states after power loss while reducing manufacturing mask costs.

Charging selected and unselected bit lines separately segments precharging current, reducing device noise during programming operations.

A semiconductor memory device uses a selecting unit to enable or disable control circuits for optimized operation.

Dynamic verify-skip logic adjusts write loops by comparing threshold distributions, reducing cell-to-cell interference and shortening total write time.

A semiconductor memory device uses a control circuit to perform primary and secondary program operations for optimized verification.

Auxiliary channel structures segment the mold structure to distribute etch loading uniformly, resolving non-uniformity during word line separation.

A memory device command interface accepts self-contained commands with embedded analog settings to execute access operations.

A voltage regulator with a low noise discharge switch maintains predetermined potentials on transistor body terminals during word line operations.

A refresh control circuit prioritizes high-frequency memory addresses to maintain data integrity.

Trench isolation between vertical semiconductor pillars prevents electrical coupling, increasing memory density while preserving erase-write endurance.

Gate dielectric charge trapping in DRAM access transistors enables reversible non-volatile memory operation, resolving eFuse scaling limits.

Varying bitline bias voltages based on page buffer states increases distribution valleys, preventing lower page data loss during power events.

A data input circuit adjusts pull-up levels on input/output data lines to reduce current consumption in semiconductor memory devices.

Control logic segments inner source select transistors into groups to refine threshold voltage distribution via periodic program and verify operations.

A memory controller issues advance read commands for consecutive pages to overlap data transfer phases.

A reset circuit synchronizes program counter initialization across diverse operations, eliminating variable reset times and preventing abnormal states.

A one-time programmable memory device uses preliminary programming to set a high threshold voltage for direct user operation.

Threshold-based region rotation distributes writes across segmented memory arrays, preventing adjacent cell disturbance and reducing refresh power consumption.

Spin transfer torque magnetic memory cells use localized current-driven switching to program data states.

Local word lines activate specific memory cell sub-arrays, allowing shared digital-to-analog converters to reduce circuit area and cost.

A memory device skips verify operations after a pass determination to reduce write time.

A distributed global bit line keeper circuit segments precharge devices across memory banks to reduce contention and power supply stress.

A semiconductor memory device performs two verification operations continuously using different voltages to skip bit line discharge and precharge cycles.

A 10-transistor non-volatile static random-access memory cell integrates a single non-volatile memory element with volatile charge storage circuits.

Modulated pulses dynamically adjust voltage and duration to set threshold voltages, narrowing distributions caused by fast and slow cell variations.

Segmented bit line bias bus reduces voltage requirements and leakage current in dense three-dimensional memory arrays.

Voltage range detector adjusts control signals for varying external power levels, ensuring access time characteristics across wide voltage ranges.

A memory device applies sub-pass voltages to adjacent word lines before read activation to maintain stable channel length.

A controller determines memory cell erasure using sequential lowest-level read voltages to ensure accurate data state identification.

Temperature compensation corrects delay time offsets in interval oscillator training, preserving measurement precision across operating conditions.

Memory controller adjusts read voltages via cell counts, compensating for threshold voltage shifts that degrade data reliability in charge trap flash.

Applying a read pass voltage to unselected wordlines manages channel charge imbalances during sensing operations.

A semiconductor memory device manages channel voltage via controlled source and well line timing sequences.

A storage control unit switches multi-bit data to a high-quality mode with narrower threshold voltage variation width.

Segmenting the erase voltage discharge into two phases prevents snapback current while maintaining fast discharge speeds for reliable memory operation.

Lowering pass voltages on source-side word lines at high temperatures reduces channel gradient and hot carrier injection, preventing program disturb errors.

A semiconductor memory device matches main and reference bit line parasitic capacitance using selection transistors.