Microfabrication Products

Here, we will discuss porous polyimide films with a uniform pore structure, life science research tools with fine through holes, and other microfabrication products.

Porous Polyimide Film

SIEVEWELL

Microphysiological system（MPS）

Porous Polyimide Film

PFAS-Free, Environmentally Friendly Porous Polyimide Film

Polyimide porous membranes have high heat resistance, low thermal expansion, and excellent dimensional stability, making them suitable for use in substrates and other applications. Taking advantage of their various favorable properties including high air permeability, porous membranes can also be used in applications such as waterproof breathable membranes. In addition, they do not use organic fluorine compounds, making them suitable as an alternatives to PFAS or PTFE.

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Features

Open cell structure with spherical pores
Consistent and uniform pore size
High porosity ⇒ high permeability, low dielectric constant
Low dielectric constant ⇒ Improved insulation and signal transmission

Unique and Uniform Microstructure

Intended Use Case

Various Separation Membranes
(Lib Separator, etc.)
Low-Dielectric
Substrate Material
Sound-Proof/Sound-Absorbing Materials
Heat Resistant/Insulating Materials

Membrane Properties

Item		Unit	μm Pore	nm Pore
Porosity		%	70	70
Gurley		sec/100cc	8〜10	200〜300
Strength		MPa	25〜35	25〜40
Elongation		%	20〜45	25〜40
Thermal decomposition		℃	571	571
Dielectric	1 GHz	-	-	1.495
Dielectric	10 GHz	-	-	1.461

SIEVEWELL Cell Capture Device

Life Science Research Tool With Microscopic Pores That Trap Cells and Allow Solutions to Pass Through.

These devices use transparent, anti-fluorescent materials with microscopic cell-sized structures. It is now being used by universities and research institutes around the world as a cell retention tool to supplement rare cancer cells in the fluid for genetic analysis, and as an analysis tool for the phenomenon known as NETosis/NETs (Neutrophil extracellular traps).

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SIEVEWELL in the text is a pending or registered trademark of TOK.

Microphysiological system（MPS）

Fluid3D-X: the cutting-edge MPS chip for drug discovery, and the perfusion culture system,both developed through our core microprocessing technologies.

Featuring a double-layer microfluidic channel structure equipped with a microporous membrane, the microfluidic chip is designed for optimal pharmacokinetic evaluation.