Samsung Electronics began mass-producing 2Gb DDR3 DRAM chips based on 40-nano technology for the first time in the world, the company said Tuesday.

Since more circuits in the same area means higher productivity, semiconductor manufacturers naturally have been focused on developing micro-fabrication techniques.

The 40-nano technology offers a 60 percent productivity increase from the 50-nano technology, which was pioneered in mass-production by Samsung Electronics last September.

The 40-nano technology also enhances data processing speed. The DDR2 DRAM chip takes 0.37 seconds to transmit a movie while the new technology reduces the time to 0.18 seconds, the company said.