Method for placing probing pad and computer readable recording medium for storing program thereof

A computer readable recording medium for storing a program executable in a computer system, wherein the program is used to place a probing pad into an integrated circuit (IC), the probing pad is used to electrically conduct a probing point to a top metal layer, the IC comprising at least one interesting pin, and the program comprises the following instructions:

• a. reading a cross-reference database between a netlist and a layout;
• b. determining grid spacing based on the layout characteristic and generating a plurality of grids with fixed grid spacing;
• c. defining the plurality of grids located on a net connected to the interesting pin as first candidate probing points based on the cross-reference database;
• d. selecting one first candidate probing point among the first candidate probing points on each net where the probing pad can be placed on based on the metal layer where the first candidate probing points are located and the corresponding locations between the first candidate probing points and the interesting pin;
• and
• e. placing the probing pad on the probing point of each net, wherein the instruction d further comprises;
• f. excluding all of the first candidate probing points in each metal layer where the probing pad cannot be placed on, wherein the non-excluded first candidate probing points are defined as the second candidate probing points.