Patent ID: 6370034
Filing Date: 2002-04-09
Classification: H05K

Abstract:
A printed circuit board for electrical devices having RF components, particularly for mobile radio telecommunication devices, wherein the printed circuit board has RF circuits, non-RF circuits, RF conductor-track structures and non-RF conductor-track structures arranged on it, the printed circuit board comprising:an assembly having both first and second outer coatings formed on respectively opposite sides of the assembly, and further having a plurality of holes which penetrate both the first and second outer coatings; a micro via coating applied to at least part of a surface of at least one of the first and second outer coatings, wherein components of both the RF circuits and the non-RF circuits arranged on the micro via coating, and wherein both the RF conductor-track structure and the non-RF conductor-track structures and arranged on at least one of the micro via coating and the first and second outer coatings; a plurality of barrier areas arranged on at least one of the micro via coating and the first and second outer coatings for the non-RF circuits and the non-RF conductor-tack structures wherein RF properties of the RF circuits and the RF conductor-track structures arranged above and below the barrier areas in relation to an RF ground coating of the assembly are protected; and a plurality of circuit interconnections arranged on at least one of the micro via coating and the first and second outer coatings.