Printed Circuit Board is a type of electronic component, which is the service of a circuit, and important to every electronic product. The practical elements get related to one another by the copper traces, whereas get mechanical assist from a printed circuit board. CEM-1, CEM-3), polymeric plastics (such as PI, PTFE), ceramics, and so forth. The usually printed circuit boards could be 1-sided, 2-sided, or multilayered. Multilayer printed circuit board is simply understood as superimposing more copper layers outwards on the premise of a 2-sided board. The everyday stackup of 2-sided PCB. Multilayer PCB are as follows. From circuit design to materials selection to PCB assembly, each step of printed circuit board manufacturing is extremely customizable, which is why it is extensively utilized in digital merchandise. In 1936, the founder of printed circuit boards, Austrian Paul Eisler, first used printed circuit boards in radio installations. In 1943, Americans used printed circuit board technology in military radios. In 1947, the US Aviation Administration and the US Bureau of Standards launched the first technical seminar on PCBs. In 1948, the United States officially recognized the invention and used it for commercial functions. Within the early 1950s, due to the issue of the bond strength and solder resistance of CCL’s copper foil and laminate, the performance was stable and reliable, and industrialized production was realized. Copper foil etching grew to become the mainstream of printed circuit board manufacturing know-how, and printed circuit board manufacturing orders began. In the 1960s, the realization of large-scale production of gap metalized double-sided circuit boards. In the 1970s, multilayer boards developed rapidly and continued to develop in the direction of excessive precision, high density, advantageous line small holes, excessive reliability, low cost, and automated continuous production. In the 1980s, floor mount (SMT) printed boards step by step changed plug-in PCBs and became the mainstream of production. Since the beginning of the 21st century, excessive-density BGA, chip-scale packaging, and natural laminate materials have been quickly developed for multi-chip module bundle printed boards. In 1956, China began PCB board improvement work. In the 1960s, mass manufacturing of single-sided printed circuit boards, pcba small-volume production of the double-sided boards and the start of the development of multilayer boards. Within the 1970s, as a consequence of the restrictions of historical situations at that time, the development of printed circuit board expertise was slow, making your complete production technology lag behind the superior stage of overseas nations. In the 1980s, superior stage single-sided, double-sided, multi-layer printed circuit board manufacturing traces had been introduced from abroad, which improved the manufacturing know-how level in China. Within the 1990s, foreign printed board manufacturers in Hong Kong and Taiwan, in addition to Japan, came to China to determine joint ventures and wholly-owned factories, which made China’s printed circuit board production and expertise advance by leaps and bounds. In 2002, it became the third-largest PCB manufacturing base. In 2003, printed circuit board output worth, and import and export quantity exceeded US$6 billion, surpassing the United States for the first time, changing into the world’s second-largest PCB manufacturing base. The proportion of output worth also increased from 8.54% in 2000 to 15.30%, nearly doubled. In 2006, China has changed Japan as the world’s largest PCB manufacturing base and probably the most active expertise improvement nation.