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Chip Inductor: subversion of the traditional circuit design

Release date: 2016-05-26 11:14:34 Visits: 498

Researchers at the University of California-depth exploration of nanomaterials synthesis in nano magnet (nanomagnet) in the latest developments. According to Professor of Mechanical Engineering, University of California, Berkeley Liwei Lin said researchers have found that the use of the cover insulating layer magnetic nanoparticles can high-frequency chip inductors size reduction, while improving performance while, with its high cut-off frequency to provide a good magnetic permeability, thereby reducing the eddy current loss at high frequencies of operation.

Engineers are often faced with the problem that, in an attempt to reduce the chip inductor size while have to keep it in optimum inductance and performance. Liwei Lin indicates that these difficulties mainly from the restrictions "Basic Science and Engineering Practice Restraint" caused.

Chip inductor technology did not happen like transistor transistor technologies advances in technology over the past 40 years has followed Moore''s Law. Inductor on the circuit regarded as a passive element is classified in the "More than Moore" in the field, so integration is not a result of Moore''s Law and other RF and MEMS miniature non-digital functions.

Chip inductor requires a larger area of the structure, because the metal traces between which requires a certain length, the number of turns, and the thickness of the space, in order to achieve adequate performance and inductance. However, the requirements for a larger area may be due to parasitic effects between the rotation of the coil inductance and the semiconductor substrate caused the loss.