Diceon Electronics Inc, Irvine, California is closing two buildings in Chatsworth by the end of the year, and switching the division to two- and four-week turnaround on ultra-fine circuit boards from general production; the Symtron division will continue its consolidation from 13 buildings in Palo Alto, Redwood City and Mountain View to three buildings in Mountain View, continuing to design and manufacture computer and telecommunication backplane assemblies and multilayer circuit boards; the Irvine division will add five- to seven-day quick-turn prototype and small-lot production to its existing mass-production facilities – all of which means a 15% cut in the work force and a one-time charge of some $5m.