Fabrication of recording heads
Abstract
Abstract A METHOD OF ASSEMBLY AND MANUFACTURING MICRO GAP TRANSDUCING HEADS WITH OPERATING GAPS FOR RECORDING OR READING IN A RANGE FROM 1 TO 150 U INCHES AND BONDED WITH SPUTTER DEPOSITED GLASS AND/OR METAL GAP MATERIALS WITH A HIGH MATERIAL OR HEAD YIELD INCLUDING THE STEPS OF MACHINING A FERRITE BAR INTO A PLURALITY OF FACED SEGMENTS SEPARATED BY GROOVES, R.F. SPUTTERING A NON-MAGNETIC MATERIAL SUCH AS GLASS OR METAL ON THE OPERATING GAP FACE AND A METAL ON THE BACK GAP FACE, BONDING A SECOND MATING BAR TO THE SAID BAR, AND CUTTING AND DICING THE BONDED BARS AS DESIRED TO FORM INDIVIDUAL POLE PIECES FOR SUBSEQUENT ASSEMBLY INTO A TRANSDUCING HEAD. AN ALTERNATIVE METH- OD SPUTTER ETCHES AWAY NON-DESIRED GAP FACE SEGMENTS UNTIL A DESIRED GAP DEPTH IS REACHED, THEN R.F. SPUTTER DEPOSITING A DIELECTRIC SUCH AS GLASS ONTO BOTH FACES, THEN BONDING, CUTTING AND DICING.
Inventors
- 👤 Robert D Fisher
- 👤 George C Puram
- 👤 Thomas J Tidd
Bibliographic Details
Claims Analysis
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