Thin Optical Head with Flip-Chip Bonded Module for Compact Disc Read Only Memory Drives
1993; Institute of Physics; Volume: 32; Issue: 11S Linguagem: Inglês
10.1143/jjap.32.5263
ISSN1347-4065
AutoresTsuyoshi Nagano, Eiichi Ueda, Shuichi Onayama, Ryuichi Katayama, Hiroshi Hamada, Yuzo Ono,
Tópico(s)Advanced optical system design
ResumoA thin optical head for compact disc read only memory drives, whose thickness is 6.9 mm including the objective lens working distance, has been developed. It features a flip-chip bonded module, in which a laser diode chip, a micromirror and a preamplifier chip are integrated on a photodiode chip. The module size is 6 mm(W)×6 mm(D)×1.64 mm(H), and its weight is 0.25 g. Readout operation was successfully carried out for a compact disc, and a 19 ns jitter signal was obtained.
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