A method for processing specimens, an apparatus therefor and a method of manufacture of a magnetic head

• Main Authors: YOSHIOKA, TAKESHI, FUYAMA, MORIAKI, OKADA, TOSHIHIRO, KANAI, SABURO, TORII, ZENZO
• Format: Patent
• Language: English
• Published: 11.01.2002
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INDUCTANCES; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MAGNETS; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PHYSICS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SEMICONDUCTOR DEVICES; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TRANSFORMERS

A method of processing specimens, an apparatus therefor, and a method of manufacture of a magnetic head are provided wherein a complicated conventional post processing step for removing corrosion products is eliminated by a corrosion prevention processing of the invention for removing only a residual chlorine compound produced in the gas plasma etching. More specifically, the method of the invention is comprised of the steps of: forming a lamination film including a seed layer made of NiFe alloy, an upper magnetic pole made of NiFe alloy connected to the seed layer, a gap layer made of oxide film in close contact with the seed layer, and a shield layer made of NiFe alloy in close contact with the gap layer; plasma-etching the seed layer with a gas which contains chlorine using the upper magnetic pole as a mask; and after that removing the residual chlorine compound by a plasma post treatment with a gas plasma which contains H20 or methanol.