Nikkei down 1 pct as semiconductor shares fall

(Updates to midsession)

TOKYO, Feb 7 (Reuters) - The Nikkei share average slid 1 percent in morning trade on Wednesday as semiconductor stocks such as Advantest Corp. (6857.T) extended recent losses after their earnings results disappointed investors.

The chip sell-off even hit shares of Tokyo Electron Ltd. (8035.T), which said on Tuesday its quarterly operating profit more than doubled. [ID:nT269775]

The Nikkei .N225 finished the morning down 168.18 points at 17,238.68. The broader TOPIX index was down 0.47 percent at 1,724.29.