Method for making a flat magnetic structure for read/write magnetic heads
US4821403A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Oct 28, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49066
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of making a flat magnetic structure having coils thereon, said structure including magnetic read/write heads using a flat substrate that has at least one side made of a magnetic material, said method including the steps of:initial machining of the magnetic side of the substrate to form supporting means for conducting wires, which forms said coils, and to demarcate future magnetic poles of said magnetic read/write heads; then depositing, on either side or both sides of the substrate, connecting pins at a rate of two pins per said coil; then positioning the conducting wires on said supporting means to form the coils; then connecting the ends of the conducting wires of each coil to the corresponding connecting pins; then coating the machined magnetic side with an insulating material; and then machining and polishing the coated side until the magnetic poles are exposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.