The United States invents a new type of super-viscous ultra-thin nano-gel

It is reported that engineers at the University of California, Davis recently invented an ultra-thin, highly viscous nanogel that can be used to process next-generation microchips. The study has been published in the recently published "Advanced Materials Magazine."

Pan Ting-rui, a professor of biomedical engineering at the school, said: “When the glue is peeled off, materials like semiconductor flakes will break off, and the traditional glue forms a thick layer between the two surfaces, and the new nanometer The glue can be heat-transferred and printed, or it can be applied to a model, forming layers that are only a few molecules thick.”

This nanogel is based on a transparent material called polydimethylsiloxane (PDMS). When it peels off on a smooth surface, it leaves a thin layer of sticky residue, which is often considered by researchers as an annoying thing. Dr. Pan and his colleagues realized that this kind of residue can be used as a substitute for glue, and its surface will be strengthened by oxidation.

Professor Pan said that this kind of nano-gel can be used to glue silicon wafers together to make a new (coatingol) multi-layer computer chip; it can also be applied to households, such as making double-sided adhesive tapes or sticking objects. On the tiles. At present, this glue is only suitable for smooth surfaces and can be removed by heat treatment.