Optical semiconductor memory device and read/write method theref

Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Heterojunction

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257 17, 257 14, 257 30, 257184, H01L 310304, H01L 3110, H01L 31105

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059362588

ABSTRACT:
A wavelength-domain-multiplication memory comprises a first semiconductor layer including a first conductivity type impurity, a carrier barrier semiconductor layer formed on the first semiconductor layer, and quantum dots formed in the carrier barrier semiconductor layer.

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"Highly Uniform InGaAs/GaAs Quantum Dots (.about.15 nm) by Metalorganic Chemical Vapor Deposition", Oshinowo et al, Appl. Phys. Lett., 65, (11), Sep. 12, 1994, pp. 1421-1423.
"Self-formed In.sub.0.5 Ga.sub.0.5 as Quantum Dots on GaAs Substrates Emitting at 1.3.mu.m", Mukai et al, Jpn. J. Appl. Phys., vol. 33, Dec. 1, 1994, pp. L1710-L1712.
"Nanoscale InP Embedded in InGaP", Kurtenbach et al, Appl. Phys. Lett., 66 (3), Jan. 16, 1995, pp. 361-363.
"On a Possibility of Wavelength-Domain-Multiplication Memory Using Quantum Boxes", Jpn. J. Appl. Phys., vol. 34, Feb. 15, 1995, pp. L210-L212.

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