Microfluidic Chips

Microfluidic Chip Manufacturing Solutions

Microfluidic chips involve interdisciplinary fields including engineering, physical fluid dynamics, materials science and biology. They serve as critical carriers in medical diagnostic analysis, directly impacting test results — requiring extremely high precision in channel design, flow rate/volume control, and surface chemical modification.

Based on micro/nano-level manufacturing processes and years of microfluidic technology expertise, SJ Group provides one-stop R&D and manufacturing solutions for microfluidic chips to global medical device and biopharmaceutical enterprises, empowering innovation across the microfluidic industry chain.

Precision Design Miniaturization Integration Low-volume Testing Multiplexed Assays Convenient & Rapi

Precision Design
Miniaturization
Integration
Low-volume Testing
Multiplexed Assays
Convenient & Rapid

Core Technologies

Chip Design

Chip Design Solutions.

Mold Flow Analysis and Validation.

Automated Production Analysis.
Ultra-Precision Machining

treatment and ultrasonic spraying technologies, the hydrophilicity/hydrophobicity of microfluidic chip channels and the surface modification with specific functional groups can be precisely regulated.
Superfinishing

Micron-level mold dimensional accuracy of ~1μm.

Ultra-precision machining achieves a mirror-like surface finish directly, eliminating the need for secondary polishing.

Micron-level injection molding dimensional accuracy of ~2μm.

Microchannel consistency deviation of less than 0.004mm.

Manufacturing process corner radius of less than R 0.03mm.

Bonding surface flatness of less than 0.1mm.

Reaction chamber volume deviation of less than 0.01μL.
Chip Packaging & Sealing Technologies

Technologies such as ultrasonic welding, laser welding and vacuum thermal bonding enable efficient packaging of various polymer chips including PMMA, PC, COP and COC.