Deals of the day-Mergers and acquisitions
(Adds Banif, Microchip, Halliburton and Advance Auto Parts)
Dec 15 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2100 GMT on Tuesday:
** The chief executive of Banif is confident the Portuguese bank will find a buyer for the state's 60.5 percent stake and the Bank of Portugal will guarantee stability of the financial system and Banif's deposits.
** Microchip Technology Inc is the semiconductor manufacturer which made the $3.8 billion unsolicited offer for peer Atmel Corp that was disclosed last week, a person familiar with the matter said.
** Halliburton Co and Baker Hughes Inc said U.S. antitrust officials were not satisfied with the concessions they offered to win approval for their proposed merger, and that officials said they would assess further proposals.