China Advange PCB Product introduction: Hard Gold PCB Hard Gold PCB Plate thickness: 1.5MMWarpage: less than 1% Inner copper thickness: 0.5OZImpedance control:+/- 5% Outer copper thickness: 1OZProcess: gold sinking+gold finger 3 ' 聽 2銆丏efinition and function of PCB gold finger: Hard Gold PCB refers to a row of equidistant square pads, exposed copper gold plated. Used for board card, LCD connection, motherboard, chassis and other electrical connection pins, because in its copper foil nickel layer and then plated with a thin layer of gold. The gold finger inserts one end of the PCB circuit board into the slot of the connector, uses the connector pin as the exit of the circuit board external connection, makes the welding pad or copper skin contact with the corresponding position of the pin to achieve the purpose of conduction, and on the PCB board this welding pad or copper skin plated with nickel gold, because the shape of the finger is called gold finger. Gold was chosen because of its superior electrical conductivity and antioxidant properties. However, because of the high cost of gold, it is only used in gold finger and other local gold plating. 聽 3銆丆ircuit board gold finger classification: Conventional gold finger: rectangular pads of the same length and width arranged neatly at the edge of the plate; Segment gold finger: rectangular welding pad with different lengths located at the edge of the plate, and the front section is disconnected; Long and short Gold finger: A rectangular pad of varying lengths located on the edge of the plate. 聽 4銆?Company introduction: Bente Circuit is a professional printed circuit board manufacturer, which can produce high-quality thick copper circuit board products and can provide up to 16oz copper thick circuit board manufacturing, similar to these 6 ounce Heavy copper pcbs. Founded in 2011, Bent Circuit is a high-tech electronic manufacturing enterprise specializing in the production of 2-18 layers of high-precision circuit boards, which has passed ISO9001:2015 (certification number: 06922Q17993R1) quality management system certification, SGS certification, and UL certification in the United States and Europe (UL E507367). 聽聽聽 It has obtained ISO9001:2015 (certification No.: 06922Q17993R1) quality management system certification, SGS certification, American and European UL certification (UL No.: E507367) 5銆?Factory advantages: 1锛?Advantages of quality assurance: ISO:2008 quality management. IQC incoming material 100% inspection; Oxford measuring hole copper, finished copper thickness. Line transfer, resistance welding and leakage. Etch and measure line width, gap.X-ray measurement of nickel deposited gold film thickness. 100% on-off test. 2锛塀ente Circuit has the advantage of designated fast and slow shipping channels. We has deep strategic cooperation with several large domestic logistics companies, which can completely save logistics costs and transportation time for customers, and truly solve and reduce their own logistics costs. 聽 Benter values锛?/strong> Make products that keep improving锛孊e kind and altruistic. 聽China Advange PCB website:http://www.bentepcb.com/advange-pcb/