Patent ID: 6438250
Filing Date: 2002-08-20
Classification: H05K

Abstract:
An electrical circuit compensated for radio interference generated by electrical micro-discharge phenomena present on an external surface of said circuit when said circuit is supplied with an electrical voltage, comprising a semi-conductor material coating on said external surface, said semi-conductor material coating having a resistivity coefficient value between 0.1 &OHgr;Ã—m and 100 &OHgr;Ã—m, whereby said external surface of the electrical circuit is maintained at a constant static electrical potential value close to that of the circuit while substantially all of the random electrical discharge currents caused by said interference phenomena is absorbed, said semiconductor material being one of a liquid and a gel, and said circuit further comprising:a sealed enclosure partially containing said electrical circuit and said semi-conductor material in which a major part of the electrical circuit is immersed; and terminal connections external to the sealed enclosure and interconnected to said major part of the immersed electrical circuit.