LSI Logic Corp, Milpitas, California warns that it expects to report a net loss of $2m to $3m, 5 to 7 cents a share for the third quarter to October 1, on turnover of about $135m, down from $141m last quarter: the company warned in June that it had excesss capacity, and says the situation has been exacerbated by a slowdown in bookings and billings during the summer that has extended into September; it looks for factory loadings in Europe and Japan to begin to improve in the fourth quarter because it will for the first time do foundry work, producing semiconductors for other electronics companies under their own label; the expected losses compare with net profits of $7.5m, 18 cents a share, on sales of $93.9m in the 1988 third quarter; last quarter it did $4.5m net, $0.11 a share, on $140.9m sales.