G - Physics – 02 – B
Patent
G - Physics
02
B
88/16
G02B 21/26 (2006.01) B23Q 1/36 (2006.01) B25J 7/00 (2006.01) H01J 37/20 (2006.01)
Patent
CA 1270133
ABSTRACT This die-shaped coarse-approach positioning device is particularly suited forthe sample holder of a scanning tunneling microscope or the like. It comprises two blocks (21, 23), one (21) stationary, the other tiltable with respect to thestationary one. The blocks (21, 23) are connected on one side by a spring-like sheet metal (20). The tiltable block (23) can be moved, and with it the sample (33), by turning a screw (28) which presses down onto an elastic pad (30). The tilting of the tiltable block (23) occurs against the effect of the sheet metal (20) until the block (23) touches down onto a wedge (39) insertable in the gap (24) between the blocks (21, 23), and consisting of an elastic material, however having a spring constant much higher than the effective spring constant of the sheet metal (20). In the application shown, the sample can be lowered onto a tunnel tip (343 attached to a fine-approach positioning device (35).
541433
Binnig Gerd Karl
Gerber Christoph Emanuel
International Business Machines Corporation
Saunders Raymond H.
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