Method of making a thin film head with minimized secondary pulse

Details Method of making a thin film head with minimized secondary pulse Method of making a thin film head with minimized secondary pulse

1992-12-09

1993-08-31

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

427131, 427132, 427259, 427266, 427270, 427272, 427331, 427404, 4274192, B05D 512

Patent

active

052407403

ABSTRACT:
A two-pole inductive magnetic head for a computer disk drive assembly. The head generates a stream of main pulses and secondary pulses in a readback waveform when reading data from a magnetic medium, each bit of read data represented by a respective main pulse. The head includes an integrating feature which reduces the amplitude and high frequency content of the secondary pulses in the readback waveform so as to ease the task of electronically isolating the main pulses for downstream processing of the read data.

REFERENCES:
patent: 4644322 (1987-02-01), Heim
patent: 4878290 (1989-11-01), Masud et al.
Hsie and Madsen, Abstract, circa Apr. 26, 1990; "Thin Film Head on Ferrite Substrate with Inclined Top Pole".

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