Process characteristics of TYPE-C manufacturers

The USB data cable is used for the connection and communication between the computer and external devices, and can also be used for the charging of the mobile phone and the connection with the outside. In layman&＃39;s terms, it is used to transmit data and charge. TYPE-C manufacturer&＃39;s products have the following characteristics:

1. The maximum data transmission speed reaches 10Gbit/ s, which is also the standard of USB3.1;

2. The size of the socket end of the Type-C interface is about 8.3mm×2.5mm slim design;

3. Support the "forward and backward insertion" function that can be inserted from both sides, and can withstand 10,000 times of repeated insertion and removal;

4.TYPE-C manufacturer&＃39;s standard specification connecting cable equipped with Type-C connector can pass 3A current, and also supports "USBPD" beyond the existing USB power supply capacity, which can provide up to 100W power. Type-C connector is suitable for all kinds of ultra-thin tablets, mobile phones, 2-in-1 and other special-purpose mobile devices, and will become the only connector standard that can meet the functions of data transmission, charging and image transmission across various devices. However, most of the existing USBType-C data lines are round cables, and the transmission effect is not as good as that of Type-C data lines made of FPC flexible board.

TYPE-C manufacturers of consumer electronic products are mostly mounted on hard boards or soft-hard boards. The traditional hard boards are not flexible and inconvenient to use. Although the soft-hard bonded board has both the bearing capacity of the hard board and the flexibility of the soft board, its production process is complicated, and it needs both FPC production equipment and PCB production equipment, so it is difficult to produce, the yield is only about 70%, the material waste is large, the production cycle is long, and the price is expensive. The flexible FPC circuit board is a flexible printed circuit board with excellent reliability made of polyimide or polyester film. It has the characteristics of high wiring density, light weight, thin thickness and good flexibility. However, the board of flexible circuit board is too soft to carry electronic components, and it did not have the ability to carry Type-C interface in the early stage, so the promotion is not particularly smooth. However, with the sharp increase in demand for HUB and the urgent demand for supporting cable products, many companies have recently overcome this technological difficulty and made FPC cables that can support USB3.1 cables with Type-C interface.

TYPE-C manufacturers pay more attention to electromagnetic compatibility （EMC） design in the production process because of its superior characteristics of high-frequency transmission. There is an EMC PAD in the middle of the tongue piece of the product, one of its functions is to make the product use environment reach the EMC effect. At present, the conventional practice in the market is to connect the EMC PAD design pin with the outer iron shell through the solder plate to form a loop. This structure has the following disadvantages: EMC PAD is combined with plastic by Insert molding, and the lead is slender and columnar, so the lead sealing position of EMC PAD is easy to run off during Insert molding; Its longitudinal length is relatively long and perpendicular to the opening and closing direction of the mold, which makes it difficult to place it in the mold for positioning, or there is a risk of skewing or being crushed by the mold during the placing process, which is not conducive to the realization of automatic manufacturing process and does not support the automatic drawing process of plastic injection mold; In addition, this pin also occupies the PCB space of the client, so it is necessary to reserve solder holes, and there is a risk of poor pitch size.