What is BS EN 61188-7 - CAD library construction for printed boards about?
BS EN 61188-7 is an international standard used for printed boards and printed board assemblies that specify printed boards and printed board assemblies for the electronic component zero orientation for CAD library construction.
BS EN 61188-7 establishes a consistent technique for the description of electronic component orientation and their land pattern geometries. This facilitates and encourages a common data capture and transfer methodology amongst and between global trading partners.
Who is BS EN 61188-7 - CAD library construction for printed boards for?
BS EN 61188-7 on printed boards and printed board assemblies is useful for:
- Manufacturers of electronic devices
- Manufacturers of printed circuit boards
- Printed board designers
- Testing houses and laboratories
- Electrical engineers
Why should you use BS EN 61188-7 - CAD library construction for printed boards?
One of the factors of establishing a CAD library component description and land pattern standard is to adopt a fixed zero component orientation so that all CAD images are built with the same rotation for the purpose of assembly machine automation. The main objective in defining a one-world CAD library is to achieve the highest level of electronic product development automation.
BS EN 61188-7 provides users guidance on basic rules for CAD library construction, including, general basic rules, rules for level A and B, file description definition and component orientations, enabling users to adopt a consistent framework for library construction.
BS EN 61188-7 also provides users guidance on basic rules, the origin point of land pattern and land pattern to footprint comparison, and components with one terminal, enabling the development of CAD library for the standardization and automation of all the processes involved from engineering to PCB layout to fabrication, assembly, and testing.
Guidance in BS EN 61188-7 enables users to develop a CAD library for printed boards to automate the processes and maintain consistency in the industry to increase efficiency and production output.
What’s changed since the last update?
BS EN 61188-7:2017 supersedes BS EN 61188-7:2009, which is withdrawn. BS EN 61188-7:2017 includes some technical changes with respect to BS EN 61188-7:2009. These include:
- Figure 1 has been corrected
- the term “rectangle” has generally been replaced by “polygon”
- level B has been indicated as a preferred level for new libraries
