Dielectric Oxycarbide Bonding for Compact 3D Memory Structures

The patent transitions control logic devices from a planar two-dimensional layout to a three-dimensional vertically-offset architecture. Memory cells remain in the planar array while control logic devices are positioned at different vertical levels, connected through routing and contact structures. This dimensional change allows increased integration density without further reducing already-minimized feature dimensions, thereby maintaining manufacturing precision while achieving greater compactness.

The patent segments the memory device into distinct functional layers: a planar memory cell array layer and vertically-offset control logic device layers. This segmentation allows each layer to be optimized independently - memory cells maintain simple planar fabrication while control logic devices can use simplified architectures. The routing and contact structures serve as controlled interfaces between layers, managing complexity rather than exacerbating it.

The patent employs composite dielectric materials with optimized compositions including oxycarbide materials that provide enhanced mechanical and adhesive properties. These composite dielectric layers maintain adequate thickness for reliable bonding and adhesion while achieving overall device compactness through the vertical architecture. The composite material formulation allows thinner layers without sacrificing bond energy, resolving the contradiction between compactness and reliability.