Patent ID: 9699901
Date: 2017-07-04
CPC Classifications: H05K

Claim:
1. A golden finger, comprising: a printed circuit board (PCB) surface layer; at least one PCB inner layer; and an insulation layer between the PCB surface layer and the at least one PCB inner layer, wherein a metal foil of the PCB inner layer is connected to a metal foil of the PCB surface layer through a current-carrying structure such that a current-carrying channel of the golden finger passes through the PCB surface layer and the PCB inner layer, wherein an edge of the golden finger comprises an edge of the PCB surface layer, an edge of the PCB inner layer, an edge of the insulation layer, an edge of a PCB pin, and an edge after an interior of the golden finger that is notched, wherein the edge of the PCB surface layer, the edge of the PCB inner layer, the edge of the insulation layer, the edge of the PCB pin, and the edge after the interior of the golden finger that is notched form at least four sidewalls of the golden finger, wherein the at least four sidewalls of the golden finger comprise a sidewall copperization such that an entire surface of each of the at least four sidewalls of the golden finger is covered in copper, wherein the sidewall copperization connects the metal foil of the PCB inner layer to the metal foil of the PCB surface layer such that a current-carrying capacity of the golden finger is increased, wherein multiple vias are disposed between the PCB surface layer and the PCB inner layer, wherein the multiple vias comprise a through hole, a blind via, and a buried via, wherein the through hole extends from one surface layer of the PCB to another surface layer of the PCB, wherein the blind via extends from an interior of the PCB to the one surface layer of the PCB, wherein the buried via extends between PCB inner layers without extending to the one surface layer of the PCB, wherein the metal foil of the PCB surface layer is plated with gold, and wherein the PCB surface layer comprises a notch that forms a recessed groove across an entire width of a top of the golden finger.