PCB Manufacturing Process – The functional part

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} PCB is Printed Circuit Board; it is made up of copper by etching copperclad. It is also called printed wired board (PWB). Raw Printed Circuit Board isPrinted Circuit Board without components and with components it is called PCB assembly  i.e. raw Printed Circuit Board with electronic components. There are basicallytwo types of raw Printed Circuit Board: Single sided board with single track of copper layer. Double sided board with two tracks of copper layer. There are also  multilayer printed circuit boards that have more than two layers of copper.The material used is thin copper foil for conductive layer and insulatingmaterial for the base. There are several methods for producing Printed CircuitBoard such as: Copper Etching. PCB Milling. Screen Printing. PCB milling is least used nowadays as it is not that effective for the massproduction of Printed Circuit Boards and hence is used for prototype productioni.e. production in limited numbers. Copper etching method is most widely usedacross the world but the screen printing method is very cost effective ascompared to others, although it provides less quality products. The whole manufacturing process of Printed Circuit Board is: First of all the quotation is prepared according to the one’s requirement of the Printed Circuit Boards. All the requirements such as number of tracks of conducting layer, price range etc. must be quoted. Then this quotation is sent to the manufacturer. Once the manufacturer receives the quotation he goes for pre engineering of the data received. Then the CAD/CAM department checks it for mistakes. If any mistakes are found the customer is immediately intimated. Once the mistakes are resolved, and everything is correct, then the engineers start working on it. Flow of PCBManufacturing Process is: Setup -> imaging -> etching -> Multilayer Pressing -> Drilling-> Plating -> Masking -> Finishing -> Quality Control ->Testing. For more details on PCB assembly and manufacturing you can visit http://www.pcbassemblydepot.com/ .This site provides information about PCB Manufacturing Process .

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