Method of making a multi-channel time based servo tape media
AssigneeAdvanced Research Corporation
InventorMatthew P. Dugas
Life of this patent
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Abstract
A thin film magnetic recording head is fabricated by forming a substrate from opposing ferrite blocks which have a ceramic member bonded between them. This structure is then diced to form a plurality of columns, wherein each column has a ferrite/ceramic combination. Each column represents a single channel in the completed head. A block of ceramic is then cut to match the columned structure and the two are bonded together. The bonded structure is then cut or ground until a head is formed, having ceramic disposed between each channel. A ferrite back-gap is then added to each channel, minimizing the reluctance of the flux path. The thin film is patterned on the head to optimize various channel configurations.
Claims18
A method of formatting magnetic tape media comprising independently energizing a plurality of independent recording channels of a surface thin film magnetic recording head by way of a separate electrically conductive coil for each recording channel, each recording channel comprising a timing-based recording gap for formatting a respective servo band of the media with a corresponding timing-based signal.
A method of formatting magnetic tape media comprising independently energizing a plurality of independent timing-based recording channels of a surface thin film magnetic recording head with different electrical signals so as to format respective servo bands of the media with different information.
A method of formatting magnetic tape media comprising providing independent electrical signals to each of a plurality of independent and magnetically isolated timing-based recording channels of a surface thin film magnetic recording head by way of a separate electrically conductive coil for each recording channel.
Dependencies are inferred from the claim text.