| 摘要 |
A circuit board cross-band veneer with a function of absorbing instantaneous high-voltage electric pulse energy and a manufacturing method therefor. The functional cross-band veneer comprises a basic cross-band veneer composed of an insulation layer (2) and metal substrates (1) above and below the insulation layer, wherein a voltage impedance-transforming functional material layer (4) is attached to the metal substrate at one side of the cross-band veneer, and metal square layers (3) which are used for absorbing instantaneous high-voltage electric pulse energy and are arranged at intervals fill the voltage impedance-transforming functional material layer. The metal square layers comprise metal squares of which the length and width are 0.8mm respectively, wherein a plurality of metal squares are separated with lateral intervals and vertical intervals, and are arranged into a metal square array in a mode of being insulated from each other, and the horizontal interval and the vertical interval are 0.08mm respectively. These metal squares form an electric energy absorption array, thereby being beneficial to constructing an instantaneous electric energy absorption network in an application. The cross-band veneer for absorbing instantaneous high-voltage electric pulse energy in the present invention is suitable for being arranged in all multilayer circuit boards, so that components on the circuit boards have a shielding effect on instantaneous high-voltage electric pulse energy. |
