Patent ID: 6780490
Filing Date: 2004-08-24
Classification: B29C,B29K,H05K,Y10T

Abstract:
A tray for carrying a magnetic head for magnetic disks,wherein the tray is prepared by molding a conductive thermoplastic resin composition, when the tray is immersed in 500 ml of pure water while applying 40 kHz ultrasonic thereto for 60 seconds, the number of particles having a particle diameter of 1 &mgr;m or larger which detach from the surface of the tray is 5,000 pcs/cm2 or smaller, when the tray is immersed in 50 ml of pure water while stirring the water at 60Â° C. for 60 minutes, the amount of chlorine ions which dissolve away from the tray is 0.01 &mgr;g or smaller per unit surface area (cm2) of the tray, and the tray has a surface resistance of from 103 to 1012 &OHgr;.