Flexible board for avoiding pad dislocation press fitting and mounting system thereof

Abstract

The invention relates to a flexible board for avoiding pad dislocation press fitting and a mounting system thereof. The flexible board comprises a flexible board body, wherein the flexible board bodyadopts a double panel structure; a main via area and a standard pad area are arranged on the front surface of the flexible board body, the main via area is provided with a group of main vias with electrical networks in one-to-one correspondence with electrical networks of optical device pins to be fabricated or tested, and a group of standard pads in one-to-one correspondence with the electrical networks of the main vias are arranged in the standard pad area; a test pad area is provided on the back side of the flexible board body, and a group of test pads in one-to-one correspondence with electrical networks of the standard pads are provided in the test pad area. The invention has the advantages that the double panel structure is adopted, the space is fully utilized, the test pad area is disposed on the back surface, the reliability and yield of the flexible board body test are met without expanding the non-standard pad area, and industry testing standards are also met.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a flexible board and an assembly system for avoiding pad misalignment and press-fitting. Background technique [0002] Flexible boards not only have excellent mechanical properties, but also have excellent electrical properties. Flexible boards can be moved, bent, and twisted without damaging the wires, and can have different shapes and special package sizes. Today, as the transmission rate of optical communication is getting higher and higher, the traditional product design can no longer meet the needs of high-speed signal transmission. In low-speed applications, the flexible board mainly plays a role of connection. In high-speed applications, attention must be paid to high-speed signals. quality of transmission. Therefore, when we design the flexible board, the distribution and wiring of the high-speed signal pads are particularly important. The high-speed signal...

AI Technical Summary

Problems solved by technology

Today, as the transmission rate of optical communication is getting higher and higher, the traditional product design can no longer meet the needs of high-speed signal transmission. In low-speed applications, the flexible board mainly plays a role of connection. In high-speed applications, attention must be paid to high-speed signals. the quality of the transmission

Therefore, when we design the flexible board, the distribution and wiring of the high-speed signal pads are particularly important. The high-speed signal pads on the existing flexible board circuit are designed in a row. The line of the disk is easy to break, and the corresponding high-speed signal line of the main board is difficult to achieve equal length, which reduces the integrity of the signal

Due to the above defects in flexible boards with high-density pads and their press-fitting methods, optoelectronic devices and communication modules are damaged or fail during the manufacturing and testing process, and the defect rate increases

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