Processes for producing a double magnetic head having head gaps

Details Processes for producing a double magnetic head having head gaps Processes for producing a double magnetic head having head gaps

1997-03-17

1998-12-01

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Electrical device making

2960307, 2960315, 2960301, 360121, 360124, G11B 5127

Patent

active

058422692

ABSTRACT:
A process for producing a double magnetic head with two head gaps with opposite azimuths by forming a first magnetic head with a first head gap having a predetermined inclination angle on a first substrate and a second magnetic head having a second head gap with a second inclination angle on a second substrate and etching a first recess along the first head. The second head is received in the first recess and a second recess is etched along the second head to receive the first head. Subsequently, one of the heads is reversed and the first head is fitted into the second recess and the second head into the first recess so that the first and second inclination angles are opposed in a common reference frame thereby providing opposite azimuth angles.

REFERENCES:
Patent Abstracts of Japan, vol. 13, No. 203, (P-870), May 15, 1989, & JP-64-23413, Jan. 26, 1989.
Patent Abstracts of Japan, vol. 10, No. 254, (P-492), Aug. 30, 1986, JP-61 080509, Apr. 24, 1986.
Patent Abstracts of Japan, vol. 9, No. 157, (P-369), Jul. 2, 1985, JP-60 035313, Feb. 23, 1985.
Patent Abstracts of Japan, vol. 18, No. 172, (P-1715), Mar. 23, 1994, & JP-05 334627, Dec. 17, 1993.
Patent Abstracts of Japan, vol. 10, no. 334, (P-515), Nov. 13, 1986, JP-61 137214, Jun. 24, 1986.
Patent Abstracts of Japan, vol. 95, No. 11, & JP-07 296325, Nov. 10, 1995.
Patent Abstracts of Japan, vol. 9, No. 262 (P-398), Oct. 19, 1985, & JP-60 111311, Jun. 17, 1985.

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