| 摘要 |
PURPOSE:To form the depth of a gap of a magnetic head with high accuracy, by exposing in terms of form the degree of change corresponding to the gap depth on the processing surface when the gap depth is decreased from the tip of the gap part. CONSTITUTION:The heads 2 for products are formed in a matrix form on a substrate 1, and detecting thin film structures 3 are formed among heads 3. The head 3 is totally drifted to the side where the gap part of the head part 3 is reduced by a degree equivalent to a displacement DELTAy. The heads 2 are cut in a lateral block 4, and the size of the processing surface is decresed. Thus the head 3 is processed toward a gap opening part 6 from the gap part 5. While the head 2 is still reduced for the size of the part 5. The part 6 is previously formed with an angle, and the length L of the opening part which is exposed by the processing is proportional to the gap depth of the head 2 in relation to the displacement DELTAy. Thus the length L is equal to the degree of change, the shape of which is exposed on the processing surface in response to the gap depth of the head 2. |
