Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads
Номер патента: EP1259958A1
Опубликовано: 27-11-2002
Автор(ы): Matthew P. Dugas
Принадлежит: Advanced Research Corp
Опубликовано: 27-11-2002
Автор(ы): Matthew P. Dugas
Принадлежит: Advanced Research Corp
Реферат: A thin film magnetic recording head is fabricated by forming a substrate from opposing ferrite blocks which have a ceramic member (14) bonded between them. This structure is then diced to form a plurality of columns, wherein each column has a ferrite/ceramic combination (16A,14; 16B,14; 16C,14; 16D;14; 16E,14). 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.
Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads
Номер патента: US20130242427A1. Автор: Matthew P. Dugas. Владелец: Advanced Research Corp. Дата публикации: 2013-09-19.