Patent ID: 6845556
Filing Date: 2005-01-25
Classification: H05K,Y10T

Abstract:
1. A method for reworking a circuit board having a metallic pad, the method comprising the steps of: removing original solder from the metallic pad; removing an outer portion of the metallic pad to expose an inner portion of the metallic pad; and applying new solder to the metallic pad; wherein the metallic pad includes a layer of nickel, wherein the step of removing the outer portion of the metallic pad includes the step of: taking off a section of the layer of nickel which is substantially in the range of 20 to 50 micro-inches in thickness; wherein a tool has a tip which is capable of rotating, wherein the step of taking off the section of the layer of nickel includes the steps of: positioning the circuit board onto a workstation base, and applying the tip of the tool to the layer of nickel while the circuit board is disposed on the workstation base and while the tip of the tool rotates; and wherein the method further comprises the step of: prior to the step of taking off the section of the layer of nickel, disposing the tip of the tool against silicone carbide material in order to dress the tip of the tool for removal of the section of the layer of nickel.