When it comes to the density of connections on a chip, researchers in industrial electronics at Mid Sweden University hold the unofficial world record. Their new technique makes it possible to connect chips to an underlying substrate, such as a circuit board, with a density of 80,000 connections per square centimetre.
“No one has ever managed to make so many connections, and we exceed the projected demands of industry by a wide margin. In ten years’ time the requirements will be 15,000 connections per square centimetre,” says Hjalmar Hesselbom, professor of industrial electronics at Mid Sweden University in Östersund.
Chips are used as microprocessors, for example, and there is a great need for many connections in personal computers. Today microprocessors have about 3,000 connection points across a surface of one square centimetre. The number of connections is important to accommodate the ever higher speeds we expect in our computer communications.
Maria Lindblad | alfa
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