Insulating Substrate Metal Adhesion Improvement TRIZ Cases

A printed circuit board conductor trace features a low-magnetism metal cover layer extending from terminal to wiring portions.

A laminate structure uses UV light to activate a polymer layer, creating chemical bonds that secure metal layers without separation.

Differentiating via hole inner surface roughness from outer layer smoothness prevents etching residues that cause short circuits in narrow-pitch wiring.

A wiring substrate with a resin and catalyst mixed layer improves metal wire adhesion through embedded electroless plating.

Partially curing the thermosetting resin between 5.0% and 70% prevents irreversible bonding, enabling reprocessing of the ceramic composite.

Insulating substrate with aluminum oxide and mullite bonds to metallization layer via manganese silicate phase.

Controlled oxide layers enhance copper adhesion without roughening, preventing delamination in high-density PCBs.

A reversible chemical bond joins epoxy conformal coatings to dry film solder masks using functional groups.

Surface treatment process deposits seed layers on wiring boards to improve adhesion between conductive traces and insulating substrates.

Laser scribing and zirconia powder blasting remove surface oxides from silicon nitride substrates, preventing gas generation during metal brazing.

Polymer chelation improves metal adhesion on paper while reducing chemical waste and enabling high-frequency circuit production.

Surface treatment reduces residual continuous oxides along the bonded interface, preventing small void formation and separation risks during brazing.

Cationic polymers in the etchant prevent undercutting and trapezoidal distortion, preserving adhesion strength and electrical conductivity.

A polymer-stabilized precious metal nanoparticle catalyst system enables reliable electroless plating on non-conductive surfaces.

Composite layers protect copper traces from oxidation while additive electroforming reduces material waste during manufacturing.

A multilayer substrate antenna element uses a ground electrode with a first region of lower surface roughness overlapping the wire conductor.

Composite resin composition maintains adhesiveness at high temperatures and humidity while ensuring processing suitability.

A patterned conductive structure forms on substrates using a soluble resist layer and physical vapor deposition.

Tin-nichrome alloy buffers stress between via lands and nichrome base layers, ensuring reliable connections in miniaturized wiring board vias.

Curved circuit corners prevent surface processing overspreading while removing nickel layers reduces thickness and cost.

Thermal ALD deposits a conformal TaAlN barrier film that reduces wiring resistance while maintaining high electromigration reliability.

Segmented etching removes brazing residues from ceramic circuit boards, preventing insulation failure caused by incomplete cleaning.

A composite insulating film with controlled porosity and dielectric loss tangent.

Uses controlled oxidation and reduction on smooth copper to boost adhesion without roughening, preventing acid-induced delamination.

A microetching solution with specific polymer and surfactant concentrations modifies copper surface roughening.

Oxidizing and plating a copper foil creates 10 to 1000 nm protrusions that balance tight adhesion with smooth surface finish.

Applying a bifunctional organic compound creates a molecular bridge between copper and resin, preventing delamination while preserving signal bandwidth.

Alternating high and low current density during electrochemical copper deposition yields 400+ gloss units while filling blind micro vias without blistering.

A printed circuit board substrate maintains high adhesive force between its resin film and metal layer through controlled ion diffusion.

Segmented conductive wiring layers reduce line space and width while avoiding under etching in thick copper manufacturing.

Silane coupling agents penetrate acid-etched, ultrasonically treated magnesium microcracks to resolve low bonding strength in polymer assemblies.

Controlled coefficient of linear expansion in thermoplastic polyimide adhesive films reduces dimensional changes and residual strain during lamination.

A multilayer ceramics substrate forms a ZnAl2O4 reaction phase at the interface to secure surface conductor bonding strength.

Electroplated asymmetric copper buffer layers mitigate thermal deformation and delamination risks in double-sided plated aluminum nitride substrates.

Fluorine-containing polymer particles in the core layer and organic silicon oxygen compound particles in outer layers form a multilayered polyimide film.

Polymer-modified acidic etchant forms uniform copper roughness independent of foil crystallinity.

A hollow rotating cylinder with a chargeable surface captures particles from moving webs using electrostatic attraction.

A slide member uses an Al-based alloy layer with controlled Si particles to form a contoured overlay surface.

An air gap structure in a hybrid bonded printed circuit board reduces the dielectric constant, resolving the trade-off between antenna size and bandwidth.

Chemical oxidation forms controlled surface irregularities to resolve halation issues and improve resist adhesion.

Additives in an intermediate region react with the dielectric to increase peeling load, resolving weak conductor bonding.

Curved bonding end between conductor layer and ceramic substrate distributes thermal stress, preventing cracking during cooling cycles.

Inclined protrusions on the metal layer boundary increase bonding area and strength, preventing delamination under rapid temperature changes.

A ceramic substrate terminal uses a titanium contact layer and intermediate metal to enhance adhesion and corrosion resistance.

Flexible elastomeric cover slips over electrical outlet boxes to provide snug fit and enhanced sealing.

Coating a synthetic TFP film on cured polyimide reduces dielectric loss and moisture absorption, enabling reliable high-frequency circuit boards.

A ceramic metal composite structure uses a nickel alloy interface layer to bond an aluminum oxide substrate to a copper sheet.

A second insulating layer covers the peripheral edge of a terminal to prevent release from the first insulating layer while maintaining connection access.

Chemical treatment creates a self-limiting oxide layer that strengthens bonding without roughening the surface, preventing delamination in fine-line PCBs.