Toshiba Corp. will slash 20,000 jobs from its group workforce of 190,000 to cope with deteriorating earnings in its semiconductor business amid the worldwide slump in the information technology sector, company officials said Saturday.

The restructuring plan will affect workers in all areas -- not only those in the company's semiconductor-related divisions but also home-electric appliances and heavy electricals, they said.

Streamlining of the company's chip-making business will involve the transfer of its two mainstay operations -- dynamic random access memories and flash memories -- to a third company to be set up jointly with a foreign firm, the officials said.