| 摘要 |
PCT No. PCT/US96/05655 Sec. 371 Date Oct. 29, 1997 Sec. 102(e) Date Oct. 29, 1997 PCT Filed Apr. 29, 1996 PCT Pub. No. WO96/35225 PCT Pub. Date Nov. 7, 1996A tapered, nonconductive structure (10) having a hollow core (18) and a conical tip (14) includes a metal wire (16) within the core (18). The wire (16) is sealed within, and is exposed at the end (22) of, the tip (14). An electrically conductive or semiconductive layer (24) on the exterior of the tip (14) form a point thermocouple contact with the wire. The tip (14) may be fabricated, for example, by placing a metal wire (16) within a tube (12), and heating and pulling the tube (12) to produce two tapered micropipettes. Thereafter, a thin metal or semiconductor film (24) is evaporated onto the outer surface.
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