Read-Only Memories TRIZ Cases

Segmented CAM word lines apply lower pass voltages to unselected cells, reducing current consumption and preserving electric characteristics.

A nonvolatile memory device selects read modes by comparing current write mode information with previously stored data in an internal storage block.

A semiconductor memory address-decoding circuit switches external addresses to internal addresses using a switching circuit and address-setting code.

Differential pass voltages boost channel potentials in non-volatile memory arrays to reduce charge leakage during programming operations.

A readout circuit applies a single bias voltage to memory and reference transistors, reducing area.

Parallel detection circuits accumulate incomplete write fail bits, reducing repetitive verify cycles and improving write speed.

A row decoder design replaces high voltage PMOS transistors with NMOS decoding units to reduce semiconductor memory footprint.

Common source memory cells merge bit lines into programming paths to shrink layout area and lower voltage stress.

Sequential node charging reduces transistor count and circuit area while maintaining reading accuracy in non-volatile semiconductor memory.

A memory device applies distinct bit line voltages during sequential reading periods to determine cell states.

Selective data inversion minimizes highest threshold voltage states, reducing programming time and power consumption.

A shared buffer unit consolidates separate page buffers to reduce read path length and improve data transfer speed in nonvolatile semiconductor memory devices.

A sense amplifier determines bit cell logic states using summed temperature-dependent, voltage-dependent, and constant reference currents.

A dual-speed sequencer circuit increments fuse addresses at variable rates to accelerate semiconductor memory repair operations.

Dynamic voltage level selection adjusts QLC read thresholds to match disparate charge leakage shifts, reducing bit error rates.

Adjusting programmed cell quantities balances threshold voltage distributions, preventing erroneous data sensing during reference voltage determination.

A storage device selects a target sequence from first data using second data as a mask to filter error bits caused by manufacturing variations.

A memory controller tracks operation frequency and bit error rates to identify defective memory portions.

A voltage regulator monitors output and mirror voltages to control a transistor.

Adjusting the erase voltage step size based on cycle counts prevents over-erase degradation and reduces total erase time in 3D non-volatile memory.

Varying bit line select transistor resistances compensates for word line parasitic resistance gradients, maintaining uniform current levels across memory cells.

Programming method for multi-bit flash memory cells using reference voltages to adjust charge states.

Dynamic reference voltage adjustment compensates for manufacturing process variations, maintaining reliable data detection in portable wireless devices.

Segmented bit line selection isolates unselected cells, preventing program disturb caused by Fowler-Nordheim tunneling and junction hot electrons.

Encoding command and address bits on clock signals eliminates I/O bus bottlenecks by allowing parallel sequencing with data transfers.

A memory device uses hole injection to decrease threshold voltage for programming and electron charging to increase it for erasing.

A sense amplifier circuit uses a current mirror to stabilize operating current in non-volatile memory cells.

A memory controller coordinates multiple nonvolatile semiconductor chips by issuing suspend and resume commands to stagger peak current operations.

Double layer capacitor maintains power during disruptions to complete data transfers, preventing corruption when main supply fails.

A memory sub-system adjusts refresh intervals based on power supply levels to maintain read operation availability.

Soft and soft-fine programming operations reduce fail bit counts in boundary word lines, preventing read disturb errors during extended zone mapping periods.

Peripheral circuit applies higher verify voltages to weak word lines during second erase verification to ensure accurate erasure status detection.

A semiconductor memory device sense amplifier unit varies initial node voltage based on read signals to optimize data retrieval accuracy.

Multi-level cell copyback program method uses selective verifying operations based on distinct voltage levels to ensure accurate data transfer.

Position-dependent verify levels reduce program disturb errors caused by Gate Induced Drain Leakage and voltage coupling in adjacent unselected cells.

A wordline driver adjusts voltage levels to compensate for transistor parameters in memory cells.

Segmented threshold voltages in NAND flash memory cells prevent gate-induced-drain leakage and miswriting while maintaining storage capacity.

A dual ramp inhibit bias voltage counters leakage currents in unselected word lines, maintaining stable channel potential to reduce program disturb.

A clamping circuit maintains bit line voltage during read operations to amplify current changes into sampled signals.

Post-read voltage pulses converge resistive states, preventing disturbance-induced degradation during multi-level data access.

A switch unit connects memory cells to a latch unit for direct data capture during verification.

Applying distinct soft program voltages to top and bottom dummy word lines synchronizes threshold voltage increases in 3D semiconductor devices.

Decreasing the pass voltage magnitude from 5.8V to 5.6V limits threshold voltage perturbations in unselected memory cells.

An adaptive frequency control mechanism dynamically adjusts operating frequencies in high-speed memory subsystems.

Segmented charge trap patterns and uneven channel surfaces prevent electron escape from the memory cell area, maintaining reliability.

Run length limited encoding restricts successive bit patterns to narrow threshold voltage distribution and reduce lateral charge spreading in flash memory.

A nonvolatile memory device stores program data in a first address area and copies reliable data to a second area for redundancy.

Detecting threshold voltage deviations in select gate transistors prevents data corruption from read disturb and retention loss.

Segmented memory banks with independent controllers eliminate address transition delays during wrap-around reads, boosting NAND flash throughput.