Method for the manufacture of planar magnetic heads by making ca

Details Method for the manufacture of planar magnetic heads by making ca Method for the manufacture of planar magnetic heads by making ca

1990-06-21

1991-11-26

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360121, 360122, 360129, G11B 542

Patent

active

050672304

ABSTRACT:
A method of simultaneous manufacture of a plurality of planar magnetic heads on a wafer or a slab made of non-magnetic material designed to be cut out to separate each head. The method can be applied to magnetic heads of the type including a micro-gap formed between two magnetic poles, facing a gap defined between two wire-wound ferrite cores. The method consists in depositing said thin layer magnetic poles on a first face of a wafer made of non-magnetic material and in hollowing out, in the face opposite to said wafer, at least one cavity for housing said wire-wound cores so as to obtain a calibrated spacing or a junction between the upper part of each of said wire-wound cores and said thin layer magnetic poles.

REFERENCES:
patent: 3789505 (1974-02-01), Huntt
patent: 4837924 (1989-06-01), Lazzari
Patent Abstracts of Japan, vol. 12, No. 429 (P-785)(3276), Nov. 14, 1988 & JP-A-63 160006, Jul. 2, 1988, Tetsuya Iwata.

Affiliated with

Also associated with

Rating

Method for the manufacture of planar magnetic heads by making ca does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the manufacture of planar magnetic heads by making ca, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the manufacture of planar magnetic heads by making ca will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2380833