Hitachi Metals Ltd. said Thursday it will acquire from U.S. technology firm Advanced Energy Industries Inc. by next March a division that makes mass-flow controllers, a device critical in the process of semiconductor production.

Through the acquisition, estimated to be worth $44 million, or some ¥4 billion, the firm aims to broaden its product lineup of the chip making device that adjusts the flow of gas with a high level of precision.

Hitachi also aims to exploit the expertise of the investment target in improving its research and development capability and in its effort to boost sales worldwide.

By 2012, the company aims to consolidate its production facilities for mass-flow controllers to enhance the economy of scale.