Light source unit and thermally-assisted magnetic head

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United States of America Patent

PATENT NO 11973310
APP PUB NO 20210013695A1
SERIAL NO

16505964

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Abstract

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A light source unit for thermally-assisted magnetic head includes a substrate member having a first bonding surface; a light source assembly attached on the first bonding surface of the substrate member and having a second bonding surface; and a heater circuit assembly formed between the substrate member and the light source assembly, the heater circuit assembly having a heater formed on the substrate member and two leads connected at two ends of the heater, the lead being thicker than the heater, thereby a distance between the heater and the second bonding surface is farther than that between the lead and the second bonding surface. The light source unit can reduce mechanical stress and thermal conduction between a light source assembly and a substrate member, thereby improving the performance of the light source assembly and the heater.

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Patent Owner(s)

Patent OwnerAddress
HEADWAY TECHNOLOGIES INC682 S HILLVIEW DRIVE MILPITAS CA 95035
SAE MAGNETICS (H K ) LTDSHA TIN NEW SCIENCE CENTRE SIX EAST SCIENCE AVENUE SHA TIN HONGKONG HONGKONG NEW TERRITORIES CHINA HONG KONG HONG KONG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Honda, Takashi Hong Kong, CN 222 2382
Kawato, Makoto Hong Kong, CN 3 5
Liu, Kowang Milpitas, US 38 565
Ng, Kwun Pan Hong Kong, CN 2 8

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