Patent ID: 6280647
Filing Date: 2001-08-28
Classification: B82Y,G01Q

Abstract:
In a method for manufacturing a probe having a sharpened tip by immersing one part of a probe preform in a liquid disposed in a container and having at least two liquid layers including an etch solution for etching the probe preform and a non-etch solution which is lower in specific gravity than that of the etch solution and which is immiscible with the etch solution, the step of: moving the probe preform in the etch and non-etch solutions during etching along a longitudinal axis of the probe preform and at a speed which does not exceed a taper length forming speed for a probe preform which is not moved in the etch and non-etch solutions during etching to thereby etch an end of the part of the probe preform into a sharp tapered tip having a taper angle greater than that obtained for a probe preform which is not moved during etching.