1. Interconnection between chip and PCB
The problem of interconnection between chips and PCBs is that the interconnection density is too high, which will cause the basic structure of the PCB material to become a factor limiting the increase in interconnection density. The solution is to use a local wireless transmitter inside the chip to transmit the data to an adjacent circuit board.
2. Internal interconnection
The internal interconnection of PCBS should follow the following principles: use high-performance PCBS, and its insulation constant is controlled in stages to manage the electromagnetic field. Avoid using leaded components and avoid using through-hole machining on sensitive boards because this process can cause wire inductance at the through-hole. Choose non-electroless nickel plating or immersion gold plating process, which can provide better skin effect for high frequency current.
3. External connection
The external connections mainly include the following types:
1）. Wire welding
Use wires to directly weld the external connection points on the PCB printed board to the components or other components outside the board, without any connectors.
2） wire welding
This method is often used for the connection between two printed boards at an angle of 90 degrees, and it becomes a whole PCB printed board component after the connection.
3）. Printed board socket
In more complex instruments and equipment, this connection method is often used. The printed plug is made from the edge of the PCB printed board, and the plug part is designed according to the size of the socket, the number of contacts, the distance between the contacts, the position of the positioning hole, etc., so that it matches the socket of the special PCB printed board.
4）. Standard pin connection
This method is suitable for use in small instruments. Two printed boards are connected through standard pins, and the two printed boards are generally parallel or vertical.
Hope the above content can help you!
