Printed Circuit Manufacture TRIZ Cases
- Ultrasonic Welding Head Control With Separate Lowering and Pressurizing
Separate lowering and pressurizing mechanisms simplify ultrasonic welding control, cut detection steps, and maintain accurate contact force.
- Dual-Nozzle Jet Solder Bath for High-Heat-Capacity Wetting
A downstream secondary jet nozzle adds molten solder after the primary wave to improve through-hole wetting and prevent unsoldered joints.
- Lead-Free Solder Foil for High-Temperature Diffusion Joining
A soft-solder matrix with enclosed high-melting particles forms a pore-free intermetallic joint above 400°C without pressing or heat treatment.
- Copper Active Brazing Material Without Silver Migration
A copper-based active brazing composition uses reactive metals to bond ceramics reliably while cutting silver cost and avoiding migration.
- Earbud Touch Electrode Around Microphone Hole for Better Sensitivity
A touch electrode wrapped around the microphone hole expands earbud touch area, improving sensitivity without adding extra components.