Stacked Layer Microfluidic Device for Monodisperse Droplet Generation

The device is divided into multiple independent channels arranged in parallel, each channel functioning as an independent droplet generation unit. This segmentation allows the system to achieve high throughput while maintaining uniform pressure distribution in each channel, resolving the contradiction between productivity and pressure uniformity.

The invention transitions from two-dimensional channel arrangements to three-dimensional stacked layer structures. Multiple layers of channels are stacked vertically, enabling high-aspect-ratio channel geometries that improve pressure distribution uniformity while dramatically increasing droplet production capacity through the additional dimensional space.

The invention stacks multiple two-dimensional channel arrays in the third dimension, creating a three-dimensional network of channels. This dimensional transition enables throughput scaling beyond what is achievable with planar two-dimensional arrays alone, while the modular layered structure keeps device complexity manageable through systematic organization.

Multiple channel layers are nested within each other in a stacked configuration, with each layer containing complete channel structures that are vertically integrated. This nesting approach maximizes space utilization and enables high throughput production without proportionally increasing device footprint or complexity.

The fabrication process is segmented into multiple steps across multiple layers. Channels are formed in separate layers using standard techniques, then the layers are stacked and bonded together. This segmentation allows each layer to be optimized independently for specific channel sizes and shapes, greatly enhancing overall design flexibility while using conventional manufacturing methods.

By forming channels in multiple stacked layers rather than attempting to create complex three-dimensional channel networks in a single bulk substrate, the invention achieves greater channel size and shape flexibility. Each layer can be fabricated with different channel geometries, and the vertical stacking creates effective high-aspect-ratio structures that would be difficult to achieve with single-step bulk etching.