Технология PCB - классификация и особенности платы с золотыми пальцами

The so-called circuit board gold finger refers to a row of equidistantly arranged square pads, обнаженное золочение. It is mostly used for electrical connection pins for board cards, соединение LCD, motherboards, шасси, etc., покрытое из медной фольги.

1. The definition and function of the gold finger core board of the плата PCB:
Golden Finger: (GoldFinger or EdgeConnector) Insert one end of the плата PCB into the connector card slot, and use the connector pin as the outlet of the circuit board to connect to the outside, so that the pad or copper skin is in contact with the pin at the corresponding position. достигать цели проводимости, and plate this pad or copper on the панель PCB никель и золото, because it is in the shape of a finger, Это называется "золотые пальцы". The reason why gold is selected is because of its superior conductivity and oxidation resistance. .но из - за высоких цен на золото, it is only used for partial gilding such as gold fingers.
Gold Finger Core Board
Second, the classification and identification characteristics of the gold finger core board of the circuit board
The gold finger classification of the circuit board:
1. Conventional gold finger (flush finger);
2. Segmented cheats (intermittent cheats);
3. Long and short golden fingers (ie uneven golden fingers).
Gold finger circuit boards of different lengths
1. Conventional gold fingers (flush fingers): rectangular pads with the same length and width are arranged neatly on the edge of the board. карта сети, graphics cards and other types of physical objects, больше золотых пальцев. Some small boards have fewer gold fingers ；
2. Segmented golden fingers (intermittent golden fingers): rectangular pads with different lengths located on the edge of the board, and the front section is disconnected;
3. Long and short golden fingers (ie uneven golden fingers): rectangular pads with different lengths located on the edge of the board.
плата PCB gold finger recognition method
Features: No character frame and marking, открыть окно в традиционном спайном шаблоне. Most of the shapes have grooves. часть золотых пальцев выходит с края доски, or is close to the edge of the board. Некоторые доски с золотыми пальцами. Normal gold fingers are on both sides Yes, некоторые плата PCB have only single-sided gold fingers. Некоторые платы имеют широкий Золотой палец.

использование платформы RK3399 для дома развлечения конечный продукт является технологическим лидером в нескольких дисплеях интерфейса, GPU, декодирование звука и видео, interconnection with multiple terminals, человеко - компьютерное взаимодействие.
The VR head-mounted display device using the RK3399 platform can achieve a delay of less than 20ms under the optimized algorithm, и может достигать скорости обновления 90Hz, 4K UHD decoding, & супер.265/H.264 видеоразрешение функции. Through the Type C or HDMI+USB interface, an external VR headset can bring an immersive virtual reality experience to the product.
аналитик считает, что чип, as the most upstream of the industry, всегда нести на себе задачу первопроходства и развития. Rockchip RK3399 open interface and open source system are not only conducive to terminal equipment manufacturers to use a chip to achieve a global product line layout, осуществить быстрое производство, cost control, техническое применение. Its open source system can also meet the needs of terminal manufacturers for product customization and differentiation, по - настоящему разрешить болезненные моменты в цепи производства, and is of great value to the development of global intelligent hardware.