Chipmaker Intel, struggling with a shrinking personal computer market, is shutting its assembly and test operation in Costa Rica and eliminating 1,500 jobs. The closure of the site, which is a significant contributor to Costa Rica’s exports, falls within a larger plan announced by the chipmaker earlier this year to cut spending as it attempts to grow beyond PCs into the mobile market. During the next two quarters, Intel will move assembly and testing from its site in Heredia, where it has been present since 1997, to existing sites in China, Malaysia and Vietnam.