Patent ID: 6333828
Filing Date: 2001-12-25
Classification: G11B

Abstract:
A magnetic disk unit comprising:slider suspension assemblies, each of said assemblies including a slider with at least one magnetic head element and a suspension having one end portion and one surface, said slider being mounted on said one surface of said suspension at said one end portion;magnetic disks, each of said disks having at least one surface which opposes to said slider of said assembly;head IC chips electrically connected to said magnetic head elements; anda control circuit electrically connected with said head IC chips for controlling operations of each of said head IC chips so that a write current is applied from one head IC chip to one magnetic head element for a first predetermined period of time and application of the write current from one head IC chip to said one magnetic head element is stopped for a second predetermined period of time equal to or longer than said first predetermined period to cool said one head IC chip connected to said one magnetic head element, said first predetermined period and said second predetermined period being alternately repeated.