Thyristor TRIZ Cases

Corner guard rings reduce thermal stress between die and substrate, preventing cracking during packaging.

Segmented anode regions on SOI substrate reduce reverse recovery time while maintaining voltage endurance.

Dynamic positioning pins resolve the conflict between accurate substrate alignment and tape application interference.

A sequence of series thyristors shares a single control gate to increase holding voltage while maintaining trigger levels.

A symmetrical silicon controlled rectifier structure enables bi-directional electrostatic discharge current paths.

Protruding p-type collector regions enhance hole injection speed, reducing switching loss in RC-IGBTs.

A semiconductor device uses a convex region in the drift layer to minimize serial resistance between emitter and collector contacts.

Isolated impurity regions redirect avalanche-generated holes away from the body region, preventing parasitic NPN transistor turn-on and device breakdown.

An NTC resistor limits surge current during thyristor turn-on, preventing di/dt damage while maintaining normal operation.

Epitaxial material with lower doping concentration increases resistance and carrier mobility, reducing trigger voltage of the parasitic SCR device.

A lateral diode triggers a vertical SCR to shunt current and reduce voltage.

A superjunction semiconductor device integrates p-type partition regions with n-type surface regions and conductive field plates.

Metal silicide layers on lowly doped IGBT emitters reduce contact resistance and prevent leakage issues.

Bidirectional P-type dopant diffusion into trench sidewalls reduces processing time while maintaining high reverse blocking voltage reliability.

Dynamic rise-time adjustment enables avalanche photodiodes to operate in gated and free-running modes, reducing overshoot and improving detection efficiency.

Reducing junction cross-sectional areas in a vertical memory cell minimizes capacitance leakage paths, maintaining data integrity at smaller scales.

A semiconductor diode uses a trench channel region to improve charge carrier distribution.

A protection element with a lower junction breakdown voltage surrounds the MOS transistor to divert surge current through the substrate.

Segmented silicon carbide layers reduce wafer bow and mechanical stress caused by lattice mismatch during epitaxy.

Alternating P-N layers generate a sawtooth electric field profile, reducing drift region thickness by 20% while maintaining high voltage blocking capability.

A trench-gated thyristor and rectifier share a single semiconductor die to enable high-voltage switching with reduced parasitic reactances.

Curved emitter boundaries and tapered contact regions reduce voltage drop while maintaining channel formation area.

Segmented semiconductor layers with varying impurity concentrations reduce leakage current while maintaining low ON voltage for faster switching.

Backside metal layer routes current vertically through substrate to reduce crowding and local heating.

A semiconductor device uses a p-type impurity concentration gradient in the deep region to suppress electric field concentration near gate trenches.

A silicon carbide vertical junction field-effect transistor uses a non-uniformly doped channel structure to reduce on-state resistance.

A tri-layer resistor structure uses protective barrier layers to sandwich the resistive film within a BEOL trench.

An intermediary dam prevents short circuits from silver migration in non-hermetic packages by blocking ion paths.

Segmented leads with a multi-layer conductive cap improve board-level reliability and cyclic bending performance in compact packages.

A dual gate NLDMOS SCR device uses an auxiliary poly gate to adjust triggering voltage for ESD protection applications.

A transparent substrate image sensor package uses conductive posts and bumps to electrically connect the chip die pads directly to the substrate.

A second electrode covers source electrode surfaces, preventing active layer contamination and improving aperture ratio.

Widening the gate region expands the depletion zone, reducing current leakage in scaled devices without increasing area.

Dummy metal structures in the passivation layer distribute thermal stress to prevent cracking of brittle low-k dielectric layers during packaging.

Graded n-buffer segmentation prevents thermal runaway and snap-off phenomena while maintaining stable withstand voltage characteristics.

Insulated stacked regions redirect carriers to reduce power consumption while maintaining high integration density.

An insulated extended drain region sets the trigger voltage of a silicon controlled rectifier, preventing walk-in during multiple events.

Deep trench isolation segments the wafer, allowing high-voltage devices to withstand voltages exceeding 20 volts without damaging low-voltage circuitry.

A rectifier circuit uses an insulated voltage sensor to measure field effect transistor states via a non-linear capacitive divider.

An integrated gate-drain diode dissipates inductive load energy through the channel, preventing silicon diffusion and protecting the device.

Segmented chip design with expansion gaps reduces mechanical stress on low-k dielectrics during thermal cycling.

Higher doped regions distribute current flow to prevent dynamic avalanche damage during switching.

Segmented contact regions increase holding voltage to prevent latch-up in high-ohmic substrates without raising operating voltage.

Selective seeding fabricates single carbon nano-tube memory cells, preventing substrate damage and reducing complexity during non-volatile memory production.

Corner band stacks redirect structural faults to prevent cracking and delamination during die sawing.

Elevated doping in latch-up-safety regions creates low-Ohmic current paths that mitigate bipolar latch-up failures during high-power operation.

A semiconductor chip uses a protective electrode pad connected to the ground bus line for electrostatic discharge protection.

A molded optical package uses a lens to align and focus light signals, resolving coupling precision challenges in high-speed data transmission.