Thus, assembly drawing becomes the basis for the mounting of components and programming the automated component placement machinery. On the other hand, the assembly drawing mentions the details about how each and every component will be attached to a board. How is a PCB fab drawing different from an assembly drawing?Īs explained above, fabrication drawing is meant for providing details about the manufacturing requirements of a circuit board. These not only serve as an outline for both processes but also helps in the inspection of the PCB quality. If only a Gerber is provided, the manufacturer may miss out on the additional details concerned with the board.įab drawing along with the assembly drawing are the reference documents required to build and assemble a circuit board. Whenever a designer wants a circuit board to be fabricated there are a number of ways to communicate all the requirements to the manufacturer. In this article, we are going to have a look at the following details:Ī fab drawing specifies all the important information such as board outline, layer stack-up, drill chart, and many more required to manufacture a PCB. Hence, it is advisable for a designer to know about the information to be included in this file. The better the fabrication drawing, the easier the board manufacturing process. RLC Resonant Frequency and Impedance CalculatorĪ fab drawing is one of the different file types that convey the manufacturing details of a printed circuit board.Bandwidth, Rise Time and Critical Length Calculator.Transmission Line Reflection Calculator.Trace Width and Current Capacity Calculator.

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