The price of PCB has always been a confusing issue for many buyers, and many people may wonder how these prices are calculated when placing orders online. Below, PCB sample manufacturers will discuss the composition factors of PCB prices together.

　　1. The diversity of prices caused by different materials used in PCBs. For example, ordinary double-sided boards generally have FR4 (Shengyi, Jiantao, Guoji, three prices from top to bottom), with board thicknesses ranging from 0.2mm to 3.0mm and copper thicknesses ranging from 0.5oz to 3oz, all of which cause significant price differences in board materials; In terms of solder mask ink, there is also a certain price difference between ordinary thermosetting oil and photosensitive green oil.

　　2. Common causes of price diversity due to different surface treatment processes include OSP (oxidation resistance), lead spray tin, lead-free spray tin (environmental protection), gold plating, gold deposition, and some combination processes, among others. The prices of these processes become more expensive in the future.

　　3. The price diversity caused by the different difficulty levels of PCBs themselves. There are 1000 holes on both types of circuit boards. If the hole size of one board is greater than 0.2mm and the hole size of the other board is less than 0.2mm, different drilling costs will be formed; If the other two types of circuit boards are the same, but the line width and distance are different, one is greater than 4mil and the other is less than 4mil, it will also cause different production costs; Secondly, some designs that do not follow the ordinary board process also come with additional fees, such as half holes, buried blind holes, in tray holes, and carbon oil printing on button boards.

　　4. The different thicknesses of copper foil cause price diversity. Common copper platinum thicknesses include 18um (1/2OZ), 35um (1OZ), 70um (2OZ), 105um (3OZ), 140um (4OZ), etc. The thicker the copper foil, the more expensive it becomes.