Bank of America cut its earnings outlook for Taiwan Semiconductor ( TSM - Get Report) and United Microelectronics ( UMC - Get Report), citing weakness in the consumer-electronics segment, while Prudential slashed its profit forecasts on a slew of chip companies.

Separately, Chartered Semiconductor said it won't meet its fourth-quarter revenue target due to weakening demand from end users.

Bank of America cut Taiwan Semiconductor's full-year 2002 estimate to 24 cents from 26 cents, and lowered its full-year 2003 forecast to 35 cents from 40 cents. For United Microelectronics, Bank of America downgraded its full-year 2002 outlook to 10 cents from 14 cents, and cut its full-year 2003 forecast to 17 cents from 23 cents.

Meanwhile, Prudential decreased its fourth-quarter and 2003 estimates for Anadigics ( ANAD), Broadcom ( BRCM), Emcore ( EMKR - Get Report), LSI Logic ( LSI), Microchip Technology ( MCHP), Pericom Semiconductor ( PSEM), STMicroelectronics ( STM), Microtune , Texas Instruments ( TXN), Atmel Exar ( EXAR), Nvidia ( NVDA), PMC-Sierra ( PMCS) and Vitesse ( VTSS), citing consumer sluggishness. For 2003, Prudential now estimates earnings growth in the midteens, vs. previous estimates of 20% growth.