Printed Circuit Assembling TRIZ Cases

Holding leaded components with a suction nozzle during soldering and hardening prevents shift from solder flow and improves PCB mounting accuracy.

Catalytic purification and controlled gas recirculation remove flux VOCs in reflow ovens, cutting contamination, cleaning needs, and inert gas use.

Printed noble metal coating on conductor particles enables reliable low-temperature solder joints without sintering or wet-chemical steps.

Gas flow and pressure sensing inside the solder hole reveals iron tip state during soldering, enabling real-time monitoring of melting and clogging.

A blocked exhaust zone and switchable pipelines remove VOCs, protect the cooling zone, and reduce inert gas waste during reflow.

Real-time pressure, displacement, and heat flux sensing keeps sleeve soldering complete while limiting board warpage and residual stress.

A flux-free fixing agent holds the solder preform in place during transport, reducing misalignment and void defects in sandwich solder joints.

Segmented gas intake and discharge lines with controllable valves speed reflow furnace cooling when switching to lower heating temperatures.

A curved baffle layout redistributes fan-driven gas across blower ports to improve hot air uniformity and reduce pressure loss during soldering.

Catalytic exhaust purification and controllable venting cut VOC buildup, maintenance, and nitrogen loss during reflow soldering.

By replacing Bi with In and tuning Ag-Cu-Sb levels, this solder alloy suppresses through-hole lift-off at 240°C while preserving joint durability.

Air is removed from the mask before discharge, helping the head fill the target fluid reliably while preventing drooling and standby delays.

A flux and solder powder formulation balances aqueous-cleanable residue with print sag resistance by tuning rosin, activators, and thixotropic agents.

Gerber-based coordinate extraction maps PCB target positions to machine coordinates, cutting manual soldering setup time and input errors.

A temperature sensor and acceleration-factor integration predict solder joint crack life before electronic circuit function is lost.

Localized inductive heating targets adhesive under PCB components, enabling fast rework removal while limiting heat spread to nearby parts.

A laser-induced forward transfer setup deposits solder paste on PCBs without masks, improving SMT precision while shortening setup time and cost.

Phosphine oxide in non-halogen flux improves solder wettability on 42 Alloy and Kovar while reducing corrosion risk and harmful emissions.

Heating RFID strap contact pads to their melting point enables fast roll-to-roll antenna bonding with lower alignment demands.

Forced air intake and hot gas exhaust shorten reflow furnace cooling time when switching from higher to lower heating temperatures.

Optical marker alignment on a die bonder enables double-ended cable bonding to multi-tier PCBs at pitches below 300 μm.

A ferrite heat generation pattern localizes standing-wave microwave heating to melt solder uniformly across device sizes while limiting base damage.

Low-temperature solder paste bonding replaces low-conductivity thermal cream to improve heat transfer from a silicon carbide module to its heat sink.

Real-time route measurement and correction keeps the bending bar on its standard path, reducing bending object damage and process loss.

Reusable 3D-printed heat shields insulate thermally sensitive PCB components during reflow and wave soldering without contamination or process interference.

A thicker flex-circuit section compressed between gas meter gaskets cuts leakage at the pressure barrier and improves seal tightness.

Individually heatable zones switch between convection and condensation to balance throughput, heat uniformity, and solder joint quality.

By measuring a container sidewall reference point, the controller infers bottom or film height for accurate paste transfer and positioning.

Uniform wall thickness from deep drawing stabilizes heat transfer, reduces solder solidification risk, and extends nozzle life with nickel-gold coating.

Flattened solder bumps and two-stage fluxing improve Cu core ball wetting, reduce voids, and stabilize bump height during substrate joining.

Positioning grooves and a movable clamp hold wires centrally in PCB insertion holes, improving soldering speed and joint accuracy.

Chemical vapor deposition forms a thin inorganic solder mask that improves PCB heat stability, moisture barrier performance, and patterning precision.

Mn and Ge additions stabilize the oxide film on Sn solder, limiting discoloration while preserving wettability in hot, humid conditions.

Shadow moire warpage data and stacked-board simulation reveal high-risk PCB regions before reflow, helping prevent internal welding defects.

Upstream and downstream board detection lets a reflow line switch heating profiles at the right time, avoiding stoppages across mixed board types.

Two-stage laser heating changes beam diameter to volatilize flux before melting solder, preventing scorching, residue scattering, and solder balls.

Constant gas flow and pressure sensing reveals iron tip contact and solder melting state in real time for more precise soldering control.

Multiple coil boards and rotating conductive targets detect throttle position without contact, avoiding wear and stray magnetic field errors.

Multi-axis ultrasonic vibration forms conductive bonds between display panels and components, reducing adhesive defects and process time.

Sealable treatment chambers and controlled solder dipping form an erosion-prevention layer for uniform, high-yield electrode soldering.

Multiple heated guide tubes solder terminals at once, cutting cycle time and reducing non-wetting on high-heat-capacity substrates.

Sequential solder stacking in a vertical tubular iron tip lets escaped flux form a heat medium, improving contact and melting efficiency.

Chromium carbide diffusion coating protects stacked metal soldering nozzles from lead-free corrosion while enabling complex 3D flow geometry.

Sliding blocks, a ball, and a piston rod expand a PCB opening, then recenter the electronic device to improve positioning accuracy and soldering quality.

A dedicated anti-scattering agent suppresses flux splatter and viscosity rise, helping solder paste keep printability and storage stability.

An As-enriched surface layer on Sn-based solder suppresses yellowing and paste viscosity rise while preserving wettability and joint reliability.

Copper-based active solder with Ti, Zr, or Hf bonds metallization to ceramics while cutting silver cost and preventing migration.

Heating RFID strap contact pads to their melting point enables fast roll-to-roll antenna joining with lower alignment demands and simpler equipment.

A baffle-guided centrifugal airflow path evens hot gas across the blowing port, improving soldering uniformity while limiting pressure loss.

Adaptive flashlamp pulses reflow solder on surface-mount components quickly and uniformly while reducing circuit board heat stress.