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IPC Releases Revised Key PCB Qualification and Acceptability Standards
September 10, 2004 |Estimated reading time: 1 minute
Northbrook, Ill. — IPC — Association Connecting Electronics Industries has released IPC-A-600G, Acceptability of Printed Boards, and IPC-6012B, Qualification and Performance Specification for Rigid Printed Boards.The documents represent the culmination of four years of revisions and the contribution of dozens of industry volunteers. Together, the two documents represent core IPC documents for describing acceptable and nonconforming conditions either externally or internally visible on finished printed circuit boards (PCB) and the frequency of end-product inspections.
The documents were revised simultaneously, underscoring their close relationship. IPC-A-600 relies on IPC-6012 for the minimum acceptability requirements for PCBs and the acceptance testing frequencies required for PCB manufacture and procurement. IPC-6012 relies on IPC-A-600 for visual support and interpretation of those requirements.Revision G of IPC-A-600 incorporates more than 80 new or revised graphics and photographs. Existing sections such as those for measles, dewetting, conductor width, etchback, foil cracks and flexible circuits have been updated. New sections have also been created to address surface plating requirements, smear removal, wire bond pads and lifted lands prior to thermal stress.IPC-6012 has changed significantly as well. Advances in surface finishes and hole densities and issues involving BGA, wire bond pads and internal annular ring requirements have all been addressed. A major addition to the document includes a performance specification "slash" sheet for the aerospace and military avionics segment of the industry, which provides common exceptions to existing IPC-6012 Class 3 performance attributes.Both documents are available in hard copy or electronic format and fall under IPC's new lower prices on single-user electronic formats.IPC is a trade association dedicated to the competitive excellence and financial success of its more than 2,200 member companies, which represent all facets of the electronic interconnection industry, including design, PCB manufacturing and electronics assembly. For more information, visit www.ipc.org.