Patent ID: 6747339
Filing Date: 2004-06-08
Classification: H01L

Abstract:
A monolithic integrated circuit device having reduced errors caused by the penetration of alpha particles into an active element thereof, said device comprising:a semiconductor body; at least one active element provided in an upper surface region of said body; a first insulating film of inorganic insulating material formed on said upper surface of said semiconductor body; an interconnection having a predetermined portion formed on said first insulating film and electrically connected with a predetermined portion of said active element; a second insulating film of inorganic insulating material formed over said interconnection so as to expose the predetermined portion of said interconnection through a window, said second insulating film consisting essentially of silicon nitride or phosphosilicate glass; a bonding wire electrically connected with said exposed predetermined portion of said interconnection; and a third insulating film of organic resin material formed on said second insulating film and over said active element, said third insulating film reduced the number of alpha particles which penetrate into said active element; said organic resin material being a member selected from the group consisting of polyimide isoindoloquinazolinedione and polyimide and containing less than 40 ppb of uranium and thorium; said second insulating film being constructed and arranged between said third insulating film and first insulating film to prevent the penetration of alkali impurities into said active element in said body which come from the third insulating film of organic resin material.