Printed Circuit Aspects TRIZ Cases

A light emitting device uses a heat transfer pad to thermally connect lead frames and heat conductors.

Camming surfaces modulate closure forces to accommodate tissue creep variations, ensuring consistent staple deployment despite resistance changes.

High filler rates expose surfaces that weaken resin adhesion. A tin and silane coupling agent coating stabilizes the interface, resolving this trade-off.

A light emitting device uses a reflective coating on the inner peripheral wall of a wiring board through-hole to redirect emitted light outward.

Bus bar assembly connects substrates via board-to-board connectors, eliminating screws to enlarge component mounting regions on printed wiring boards.

Optimized polyisocyanate ratios maintain low viscosity while ensuring sufficient hardness in shadow areas during moisture curing.

Low thermal mass rolls enable rapid heating and quenching of patterned webs, preventing polymeric substrate distortion during continuous sintering.

A deformable layer thermo-forms accommodation volumes to precisely position embedded components within a compact carrier stack.

A three-end connector design routes signals directly to a backplane via a high-speed cable, bypassing internal transition components.

A movable heat transfer member slides within a base through hole to contact a spaced busbar, absorbing dimensional errors that reduce thermal conductivity.

Asymmetric through holes increase copper ratio to mitigate warping and improve reliability.

Asymmetric drum-shaped penetrating hole in printed circuit boards enables sequential metal filling during electroplating.

Segmented chemical treatment with iron chloride and permanganate solutions eliminates base metal residues between wirings while preserving copper integrity.

A wiring board uses a base substrate with varying thickness to join substrates of different sizes.

A display device with an indented substrate integrates components within recessed non-display regions to maximize screen area.

A printed circuit board design uses insulating layers with different moduli to define cavity boundaries during blasting.

Angled pin and slot interconnects join stacked PCB segments to eliminate bulky wiring, reducing probe diameter and soil disturbance during deployment.

Varying metal terminal heights reserve space for connecting traces, preventing short-circuiting caused by overcrowding near the driving chip.

Phosphorous-containing poly arylenes ether incorporates organic phosphorus groups to create halogen-free thermosetting compositions.

Offset signal pads on SFP boards support 40G and 100G Ethernet rates while maintaining backward compatibility with lower standards.

Embedded interrogation trace detects flex cable damage by measuring electrical conductivity deterioration, preventing costly failures at higher assembly levels.

An inclined rectifying plate in a wiring unit redirects vertical oil flow horizontally, preventing air enclosure and bubble formation that reduces oil pressure.

Connection parts bridge pads and lines across insulation layers in a display device, resolving bonding defects caused by height differences.

Composite adhesive layers secure the display panel and printed circuit board, preventing signal disruption when pressure causes deformation.

Rotating wristband layers with permanent magnets and coils generate electricity through electromagnetic induction, eliminating frequent recharging needs.

A laminated circuit board design aligns power line currents to cancel induction magnetic fields without a dedicated ground layer.

Printing conductive ink on sheet material eliminates manual soldering and dedicated machinery, reducing production time and costs for flexible circuits.

A sliding switch bar connects power electrodes to a fan while blocking an air vent in electronic products.

Core shelled particles balance leakage current and electrostatic discharge protection by switching from insulative to conductive states at elevated voltages.

A PCB test coupon matrix uses independent trace patterns to measure individual via resistance with a 4-wire Kelvin bridge system.

Sandblasting creates higher surface roughness on the center portion of a via pad, improving electrical and mechanical coupling strength in miniaturized devices.

An angled supporting surface in the sub-mount adjusts the LED optical axis without additional lampshades, reducing manufacturing costs.

Magnetic force drives solder particles into vias, eliminating cavities and voids from electroplating.

Via portions with pads equal to or smaller than via surfaces increase circuit density in multilayer printed circuit boards.

Variable resin thickness reduces thermal resistance near high heat generation components, improving dissipation while maintaining compact size.

Segmented wiring layers with distinct pitch characteristics increase circuit density while maintaining manufacturing precision and reliability.

Convex MEMS bumps on a flexible film break oxide layers and accommodate height deviations to ensure reliable electrical contact.

A connecting conductor pattern links the inner earth pattern to the coaxial connector outer conductor on a multilayer substrate.

Offset prongs reduce mounting hole space by half, resolving routing area constraints and structural weakness on densely packed printed circuit boards.

A light-shielding sheet blocks ultraviolet radiation during molding curing, preventing current leakage in diode elements and reducing power consumption.

Segmenting the USB connector from the main body reduces device volume and weight, enabling versatile integration across various electronic products.

First and second connection pads on opposite display substrate surfaces expand flexible printed circuit board attachment area.

Passivation layers on a substrate allow thick conductive plating, solving embeddability limits in circuit boards.

Integrating a planar zener diode between PPTC layers improves thermal contact efficiency, resolving insufficient heat transfer in surface mount devices.

Graphite substrates channel heat away from LED junctions, lowering temperatures by 9.8°C compared to aluminum engines.

A pluggable network interface heatsink maintains direct contact with a heat-generating circuit to improve thermal conduction.

Alternately stacked HfO2 and SiO2 films reduce light reflection interference, ensuring uniform exposure and stable adhesion during photolithography.

A glass core printed circuit board uses edge insulating materials with lower thermal expansion to reduce tensile stress.

Buffer layer absorbs bending stress to protect fragile film layers and maintain electrical performance during display deformation.

Universal circuit board pin assignments enable same-line fabrication of hermetic and non-hermetic optical modules, reducing manufacturing complexity.