Dynamic information storage or retrieval – Specific detail of information handling portion of system – Electrical modification or sensing of storage medium
Patent
1996-05-10
1998-05-12
Edun, Muhammad N.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Electrical modification or sensing of storage medium
250306, G11B 700
Patent
active
057516855
ABSTRACT:
A buffered probing device includes a cantilever-shaped probe having a micro-needle at its tip, and an electric circuit that applies electrical signals between the micro-needle and a probe target to which an electrical stimulus is applied. In one embodiment of the invention, the probe includes a suspension member having a spring constant per unit length that is less than that of a probe body. The micro-needle is formed on the suspension member. In another embodiment of the invention, the electric circuit applies oscillations at a specific frequency to the probe, such that the micro-needle is always or intermittently in contact with the surface of the probe target. As a result, wear of the needle is greatly reduced.
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Tamanuki, Takemasa et al., "Temperature Characteristics of Short-Cavity AlGaAs/GaAs Surface Emitting Lasers", IEICE Transactions, vol. E 74, No. 11, pp. 3867-3869.
Edun Muhammad N.
Hewlett--Packard Company
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