IPC 4761:2006

PC-4761 is the sole industry guideline providing PCB designers, manufacturers and uses with detailed information on all existing methods for protecting vias on printed boards, including all types of via tenting, plugging, filling and capping. Production issues, long term reliability concerns and material specification and selection are provided to aid in evaluating the benefits and concerns for employing each type of via protection. 16 pages. Released July 2006.