Mass Produce Microchannel Chips Developed

Micro Chemical Giken, a venture company from Panasonic and the University of Tokyo (Univ. Of Tokyo) and headed by Professor Takehiko Kitamori of the Department of Applied Chemistry of the University of Tokyo, jointly developed technology to mass-produce microchannel chips using the glass mold method on November 6. Announced that it was developed in.

Microchannels that can create channels of several tens of μm and allow liquids to pass through them to cause chemical reactions are currently used in fields such as blood analysis, food analysis, and environmental analysis (water quality). It has come to be. In addition to glass, the material that forms the chip includes resin (plastic), silicon rubber, and paper. Among them, glass has strengths not found in other materials due to solvent resistance and chemical modification of the surface. However, it is necessary to perform processing by drawing with an electron beam (EB) or an etching process similar to a semiconductor pre-process, and the problem is high cost and long manufacturing time.

Panasonic’s glass mold method has been used for the production of aspherical lenses used in cameras, etc. for about 40 years, and has been used for lens production since 1991. Technology. Specifically, a glass material is pressed at a high temperature of about 600 ° C. and a high pressure of 500 kgf with a cemented carbide mold to transfer the mold shape to the glass. Because the mold and glass materials are different, cracking occurs when peeling, it is difficult to cut cemented carbide precisely, and it is necessary to cut to form a convex shape of several hundred μm precisely Although there were some problems, it was said that the core technology has been put into practical use by developing mold processing technology, release film technology, and molding technology that can solve these issues.

Specifically, using the know-how of manufacturing aspherical lenses, a circuit layout for transferring to a circular glass chip substrate with a maximum diameter of 50 mm is created by software. The mold is formed by making full use of electric discharge machining, and the glass material is pressed with the mold under the necessary conditions. Finally, the surface is mirror polished by mechanical polishing and hand polishing by a skilled worker.

An overview of the glass mold method and the newly developed manufacturing process. By combining multiple new technologies, it was possible to make high-precision glass micro-channel chips.

In addition, the molding process is divided to ensure mass production throughput. The number of molds produced per month is reduced by shortening the time required for one process by minimizing the temperature increase / decrease of the mold necessary for the process and moving the mold from one process to another. In addition to being able to produce thousands to tens of thousands of sheets, it is possible to reduce the cost by about 1/10 and increase the accuracy by about 10 times compared to the conventional glass etching method due to the mass production effect.

The target market is planned to be developed mainly for water quality analysis, blood tests, pharmaceuticals, foods, etc., and orders for prototypes will start within the fiscal year 2019. In this case, Micro Chemical Research Laboratories is in charge of providing various services for orders, and Panasonic is in charge of actual manufacturing (Panasonic Industrial Solutions and Panasonic Devices Nitto are in charge of actual manufacturing) ) Is assumed.

The target market is planned to be developed mainly for water quality analysis, blood tests, pharmaceuticals, foods, etc., and orders for prototypes will start within the fiscal year 2019. In this case, Micro Chemical Research Laboratories is in charge of providing various services for orders, and Panasonic is in charge of actual manufacturing (Panasonic Industrial Solutions and Panasonic Devices Nitto are in charge of actual manufacturing) ) Is assumed.

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Mass Produce Microchannel Chips Developed - /10

Summary

Micro Chemical Giken, a venture company from Panasonic and the University of Tokyo (Univ. Of Tokyo) and headed by Professor Takehiko Kitamori of the Department of Applied Chemistry of the University of Tokyo.

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