US Patent Issued to SEIKO EPSON on Sept. 16 for "Circuit board, method for manufacturing circuit board, and resonator device" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,987, issued on Sept. 16, was assigned to SEIKO EPSON Corp. (Tokyo).

"Circuit board, method for manufacturing circuit board, and resonator device" was invented by Koji Kitahara (Ina, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A circuit board includes a semiconductor substrate having a first surface and a second surface located on an opposite side from the first surface, a through hole penetrating the first surface and the second surface, an organic insulating film disposed on the first surface and a side surface of the through hole, and a conductor disposed on an opposite side of the organic insulating film from a side surface side of the ...