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    • 19. 发明授权
    • Magnetic write head having a shield that extends below the leading edge of the write pole
    • 磁写头具有在写柱的前缘下方延伸的屏蔽
    • US07715147B2
    • 2010-05-11
    • US11588961
    • 2006-10-27
    • Michael FeldbaumQuang LeAron PentekSue Siyang Zhang
    • Michael FeldbaumQuang LeAron PentekSue Siyang Zhang
    • G11B5/187G11B5/11
    • G11B5/11G11B5/315
    • A magnetic write head for perpendicular magnetic recording that has a write pole and a trailing or side shield that has a leading edge that extends to or beyond the leading edge of write pole, thereby ensuring complete side magnetic shielding. The write head can be formed by forming the write pole on a non-magnetic substrate that is constructed of a material that can be readily removed by reactive ion etching (RIE). The write pole can be formed by depositing a layer of magnetic write pole material over the substrate and then forming a mask over the magnetic write pole material. An ion mill can be performed to define the write pole, and then a reactive ion etch can be performed to notch the substrate, so that when a non-magnetic shield gap material is deposited it will be below or at the bottom of the write pole. Then a magnetic shield material can be deposited to form a shield having a leading edge that extends beyond the leading edge of the write pole.
    • 一种用于垂直磁记录的磁写头,具有写磁极和后屏蔽或侧屏蔽,其具有延伸到或超过写极的前沿的前沿,从而确保完全的侧磁屏蔽。 写头可以通过在由可以通过反应离子蚀刻(RIE)容易地去除的材料构成的非磁性衬底上形成写极来形成。 可以通过在衬底上沉积一层磁性写入磁极材料,然后在磁性写入磁极材料上形成掩模来形成写入极。 可以执行离子磨以限定写入极,然后可以执行反应离子蚀刻以蚀刻衬底,使得当非磁性屏蔽间隙材料沉积时,它将在写入极的下方或底部 。 然后,可以沉积磁屏蔽材料以形成具有延伸超过写柱的前缘的前缘的屏蔽。