ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,771, issued on April 22, was assigned to Skyworks Solutions Inc. (Irvine, Calif.).
"Closed-cavity printed circuit board" was invented by Ki Wook Lee (Irvine, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of making a printed circuit board structure including a closed cavity is provided. The method can include the steps of forming a cavity in a core structure of a core layer, laminating each of a top surface and a bottom surface of the core structure with an adhesive layer and a metal layer to prepare a laminate structure and cover the cavity to define a closed cavity. The method also includes forming vias through the laminate structur...