Contactless Circuit Testing TRIZ Cases

Selective attenuation protects ADCs from RF power spikes while preserving critical signal portions for accurate measurement.

Timed dual laser pulses generate sequential electron pulses to reveal partial disconnections without slowing semiconductor inspection.

Photoluminescence from aligned defect sensor sites measures circuit charge density with lower noise and thermal impact in compact circuits.

On-chip voltage comparison enables contactless IO driver testing without probe-pad capacitance, preserving high-speed chip performance.

A multi-step effective medium model separates CMOS interference from memory array signals to improve CuA optical metrology accuracy.

Dual-surface light scanning keeps a smaller irradiation region fully overlapped to improve semiconductor failure detection accuracy.

DC BIST biases the photodiode electrically to verify IC connectivity before optical assembly, cutting test cost and component waste.

Electric-field-driven ions enable contactless electron beam testing of packaging substrates to detect shorts, opens, and leakages reliably.

Capacitance scanning with moving sensor plates detects conductive pattern defects early, cutting semiconductor inspection cycle time and boosting throughput.

Layout-guided coordinate mapping links VC electron-beam defects to RSEM regions of interest for faster root-cause analysis.

Multiline TDI sensing combines displaced pixel data into composite pixels, balancing circuit feature resolution with inspection throughput.

This module uses dielectric-dependent capacitance signals to detect TGV drilling defects non-destructively and support product yield.

Variable-energy electron beams test interconnects without damaging contact pads.

Lock-in demodulation of electron emissions creates phase-resolved circuit images, reducing probes and improving fault isolation throughput.

Z-scanning laser photo-modulated reflectance determines carrier diffusion lengths and recombination lifetimes in semiconductors.

Laser scanning maps semiconductor junction layouts by inducing electron-hole pairs, avoiding destructive de-layering and preserving device integrity.

An optical sensor detects electric fields from circuit substrates using a patterned reflective layer for non-contact signal capture.

Coaxial transmitter and receiver coils enable contactless electronic circuit testing, eliminating mechanical needle wear and extending service life.

Backside electrical probing detects logic states in integrated circuits using high-speed digitizers and customized signal processing.

Time-resolved electrical signal analysis generates intensity images to detect pattern defects in semiconductor objects.

Routing metallization layers away from the light path resolves obstruction in multi-die stacks, enabling accurate electro-optical probing of internal circuits.

AC coupling circuit isolates large DC levels from TIVA outputs, enabling detection of small signal anomalies that standard monitoring misses.

A probe card signal router distributes one DC channel to multiple probes, resolving throughput limits caused by scarce DC test resources.

Integrating LEDs into the probe card replaces complex external opto-mechanical systems, delivering uniform illumination while simplifying device architecture.

Laser perturbation combined with reference failure vectors isolates true defects from artifacts, reducing debugging turnaround time.

Simultaneous front and rear probe contact on redistribution structures enables comprehensive electrical testing of semiconductor wafers.

Segmented wiring substrates accommodate probe misalignment, reducing electrical resistance and improving test data integrity.

Evacuation pathways create a sealed environment that maintains secure attachment while preventing damage to conductive regions during testing.

A wireless probe card transmits signals to integrated circuit dies for early defect identification.

Optical photon detection identifies contention currents in integrated circuits to prevent interconnect wire damage during testing.

A laser beam induces temporary faults in a correlation semiconductor device to identify defect locations by matching test signatures.

Amplified detection signals use pre-calculated harmonic correction values to restore time waveform accuracy during semiconductor device testing.

A capacitive coupling fixture energizes microelectronic devices without direct pin contact for RF emission analysis.

A non-contact displacement meter measures distance to IC devices on a socket placing surface.

Testing switches and pad switches coordinate to group pads for sequential probing, lowering apparatus complexity and manufacturing costs.

A laser probing system positions an optic probe using combinational logic analysis waveforms to identify defects in integrated circuits.

Shortpass filters block thermal noise to improve signal-to-noise ratio and reduce exposure times.

A semiconductor test device routes oscillation signals through switching and frequency division units to a data pad.

Scan chain control elements isolate target circuits from adjacent signal crosstalk, improving fault isolation accuracy.

Scanning time-resolved emission imaging overcomes detector noise and jitter by mapping faint p-FET signals with high precision.

Second pads sized larger than minimum metal line dimensions enable precise nano-probe positioning on integrated circuit test structures.