Optical head structures including support substrates adjacent tr

Details Optical head structures including support substrates adjacent tr Optical head structures including support substrates adjacent tr

1997-12-19

1999-03-23

Swann, Tod R.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4412, 369122, 257 98, G11B 0700

Patent

active

058869719

ABSTRACT:
An integrated optical head, such as, for a disk drive, preferably includes an optically transparent substrate. The substrate has a diffractive optical element formed on one face and a plurality of electrical contact pads exposed on the other face. A light source is positioned to emit light through the substrate, through the diffractive optical element, and toward data storage media. The light source includes a plurality of electrical contact pads corresponding to the plurality of electrical contact-pads exposed on the face of the substrate. An optical detector is positioned to detect light reflected from the data storage media, through the diffractive optical element, and through the substrate. The optical detector includes a plurality of exposed electrical contact pads corresponding to the plurality of electrical contact pads exposed on the face of the substrate. The substrate and the light source and optical detector are passively aligned using solder bumps between pairs of contact pads. A mechanical passive alignment arrangement is also disclosed.

REFERENCES:
patent: 4626103 (1986-12-01), Feldman et al.
patent: 4636080 (1987-01-01), Feldman
patent: 4665310 (1987-05-01), Heemskerk
patent: 4757197 (1988-07-01), Lee
patent: 4866694 (1989-09-01), Korth
patent: 4871224 (1989-10-01), Karstensen et al.
patent: 5025165 (1991-06-01), Chen et al.
patent: 5130531 (1992-07-01), Ito et al.
patent: 5159473 (1992-10-01), Feldman
patent: 5168324 (1992-12-01), Hackel et al.
patent: 5170269 (1992-12-01), Lin et al.
patent: 5189485 (1993-02-01), Hackel et al.
patent: 5202775 (1993-04-01), Feldman et al.
patent: 5204516 (1993-04-01), Opheij
patent: 5229883 (1993-07-01), Jackson et al.
patent: 5237434 (1993-08-01), Feldman et al.
patent: 5309282 (1994-05-01), Feldman et al.
patent: 5337398 (1994-08-01), Benzoni et al.
patent: 5422870 (1995-06-01), Kojima et al.
patent: 5446814 (1995-08-01), Kuo et al.
patent: 5499312 (1996-03-01), Hahn et al.
patent: 5499732 (1996-03-01), Nishimoto
patent: 5583843 (1996-12-01), Horinouchi
patent: 5608233 (1997-03-01), Sahara et al.
patent: 5621715 (1997-04-01), Ohyama
patent: 5638469 (1997-06-01), Feldman et al.
patent: 5771218 (1998-06-01), Feldman et al.
Seimi Sasaki et al., Marker Alignment Method For Passive Laser Coupling On Silicon Waferboard, IEICE Trans. Commun., vol. E79-B, No. 7, Jul. 1996, pp. 939-942.
PCT International Search Report, PCT/US 97/17279, Mar. 20, 1998.

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