Magnetic read head wherein the shields are used as electrical leads and have a minimized anisotropic magneto-resistance effect

US6807032B1 · kind B1 · utility

Assignee

• Seagate Technology LLC · US

Inventors

• Michael Allen Seigler · Eden Prairie, US
• Isabel G. Trindade · Pittsburgh, US
• Petrus Antonius Van Der Heijden · San Jose, US
• Michael Minor · Gibsonia, US
• Mark William Covington · Edina, US
• Rene' Johannes Marinus van de Veerdonk · Pittsburgh, US
• Sharat Batra · Wexford, US
• Robert Earl Rottmayer · Wexford, US

Key dates

• Filing date: Feb 2, 2001
• Grant date: Oct 19, 2004
• Expiry date: Oct 27, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G11B5/3912
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A ferromagnetic shield material having a minimized anisotropic magneto-resistance effect permits the use of a combined shield/electrical lead for magneto-resistive read elements. The shields/electrical leads may therefore be placed closer together, maximizing the recording density that may be read by a magnetic recording head using a read element having such shields/leads.