![]() ![]() In addition to graphical image data, IPC-2581 goes above and beyond to consolidate all aspects of a design, from layer stackup and materials to assembly and test details, into a single data format, contained in a single file. The IPC-2581 standard was initiated, developed, and driven by contributors from a wide range of PCB industry segments, such as OEMs, PCB Fabricators, and Contract Manufacturers, as well as MES, PLM, and CAD/CAM vendors. ![]() This format is backwards compatible, meaning it can still be used with single layer or two-layer boards. Also included within the X2 fabrication files is a set of drill files detailing the drill size, location, plated/non-plated, and layer span. Whereas previously, board layer order and stackup information had to be manually interpreted and verified, now this data is included within the X2 fabrication files. The Gerber X2 comes from an expanded version of GerberX format, which now includes design data, in addition to layout image data. What can X2 and IPC-2581 do that RS-274X can’t? Let’s take a closer look at these formats, in order to understand the advantages they provide over the industry standard. ![]() The open standards Gerber X2 and IPC-2581 were developed to address the problems inherent in 274X. Yet despite its popularity, Gerber comes with a number of practical limitations, which can lead to a variety of problems throughout the fabrication process. ![]() It’s utilized for fabricating about 90% of all PCBs designed today worldwide. Gerber RS-274X is the defacto standard format for printed circuit board design software. The Gerber X2 format contains layer stackup information, which was not contained in previous Gerber file format versions. The latest format is the Gerber X2 format, which is preceded by the popular RS-274X format, and the obsolete RS-274-D format. There are three Gerber file extensions, one of which is obsolete. This de-facto standard file is not your only option for exporting design data there are alternatives to Gerber RS-274X, which is arguably the most popular assembly file format. To accommodate this flexibility to select a board fabrication and PCB assembly service, virtually all CMs use design files in Gerber format. Unfortunately, all CMs are not created equal and PCB designers are better served when they are able to partner with the best CM for their specific needs. Preferred PCB design file formats vary from manufacturer to manufacturer. The industry’s most comprehensive PCB design software with flexible PCB-to-Gerber file converter capability. ![]()
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