Digital Circuit Testing TRIZ Cases

A portion isolation design segments chip layouts to enable partial-good testing.

Edge-triggered flip-flop registers and counter logic configure address signals, reducing test time while increasing DUT density beyond 1000/mm2.

Automated correction of third attenuators via reference units eliminates manual adjustment time when swapping modular signal generation interfaces.

A calibration device aligns test system channels using multiple circuit paths and a common node.

Automated scan pipelining inserts optimized pipeline stages and flip-flops to meet timing requirements in hierarchical test designs.

Stability detection circuit generates error signals to adjust sampling time via delay elements.

Multiplexing circuitry routes signals through an nTRST pin to eliminate boundary scan latency and reduce pin count.

Internal signal routing eliminates external dependencies, ensuring accurate diagnosis without interference.

Spring-loaded Pogo pins contact board side edges to supply power and diagnostic signals without mechanical deformation.

A selection circuit routes data signals using multiple voltage levels to reduce power consumption in scannable flip-flops.

A built-in self-test controller detects stuck-at and transition delay faults in random number generator cores.

A debug circuit configures general-purpose input output pads to logic high, low, or high impedance states for system monitoring.

Dynamic bandwidth allocation and voltage scaling resolve data collision bottlenecks between functional traffic and debug streams in low power domains.

Voltage-control delay circuits adjust input test signal timing to synchronize delivery across varying electrical paths.

Digital channels sample RF signals at high rates to determine frequency and amplitude, resolving port limitations that restrict parallel testing throughput.

A phase noise analysis apparatus derives filtered signal samples by folding filter characteristics across spectrum boundaries to quantify noise in electronic devices.

Encoding test responses directly into SERDES protocol formats eliminates decoding circuitry complexity while achieving deterministic data latency.

Pin share circuits allow TMS and TRST pins to serve dual control and data roles, reducing test overhead by up to 38 percent without power-on-reset cycles.

A protective relay test equipment operation device uses a switch unit to change electrical connections between test signals and relays.

A device interface board injects test signals and measures transmitted versions to generate calibration factors stored in computer memory.

Ethernet interface converts frames to access signals for memory-mapped device registers, bypassing removed JTAG ports.

Segmented heatlet design reduces equipment complexity by enabling versatile testing across multiple die profiles without requiring specialized platforms.

A mechanical input output selector uses displacement devices to autonomously connect transmission lines.

A monitoring device measures signal transmission quality over wired electrical paths to determine a reliability indicator for electronic systems.

A chiplet integration interface decrypts and compares test results from a shared database to verify component trustworthiness.

A non-interleaved scan architecture separates input and output phases to utilize high-speed input buffers during data loading.

Barrier transactions synchronize debug operations with system speed, resolving bandwidth mismatches without increasing physical pin count.

Embedded gated scan flops enable pre-bond probing of through-silicon vias, resolving density constraints that hinder direct measurement.

An automated method captures channel step-response waveforms to generate and select optimal continuous time linear equalization filters.

A power isolation infrastructure segments integrated circuit cores into independent domains to neutralize defects during manufacturing.

A ground fault detection circuit amplifies test current signals through a band-pass filter to identify wiring faults in automatic test equipment.

A memory controller streams boundary scan test vectors via a UART interface to enable internal testing without external hardware.

Control vectors modify HDL code segments to mimic faults, enabling quantitative structural coverage measurement that formal verification alone cannot provide.

A storage unit with alignment elements couples handling devices to interface units, reducing damage during automated exchange.

A circuit test system multiplies clock frequencies to enable high-speed testing of electronic components.

Multiplexing logic routes repair data through a register chain to defective memory cells, resolving the trade-off between reliability and device complexity.

Ternary voltage levels encode multiple control signals on one pin, resolving the conflict between limited device pins and full testing capability.

Multiplexers mask asynchronous reset signals during scan testing to prevent glitches and metastability errors in flip-flops.

A data communication system detects bit-shift errors by comparing altered parallel data streams against reference patterns.

An integrated hardware-in-the-loop system uses a microcontroller with hardware abstraction layers to execute automated test applications.

A computer-implemented method generates test layouts by applying random changes to polygon parameters and minimizing slack against design rule constraints.

A probe apparatus uses a gas supply device to form a high-pressure atmosphere around probe needles.

A compression circuit compares data from multiple memory accesses to identify defective cells and generate error bits.

Switching elements temporarily short power supplies to inject faults, avoiding bulky instruments and DUT modifications.

Prioritized BIST tests reduce fault detection time by 58% while maintaining comprehensive coverage.

Automated shmoo plot generation aggregates single pin test data into integrated visual representations for semiconductor memory analysis.

A comparison unit measures through via capacitance against a reference capacitor to verify formation integrity.

Combinational logic circuits combine I/O pin states into test signals, bypassing boundary scan shifting to enable high-precision PPMU measurements.