Duft Bornsen & Fishman, LLP
Manufacturing a narrow track read head
Embodiments of the invention operate to narrow the track width of a read head used in a disk drive. In one embodiment, a magnetic read head has a track width of about 40 nm or less. The read head is fabricated by a method that includes fabricating a film stack from a substrate, a sensor material, a stop material, a first release material, a mask material, and a photo resist material. The mask material may include a masking substrate material and a second release material. The film stack is processed by forming a read head image in the photo resist material, removing portions of the film stack that lie outside the read head image of the photo resist material, stripping the film stack to remove the photo resist, mask and first release materials, and milling the sensor material according to the read head image.
HGST Netherlands, B.V.
G G B Y Y G
G11B G01R B82Y Y10T Y10T G11B
inventional inventional inventional additional additional inventional
Jui-Lung Quang
Li Le