Method and system for implicitly encoding preferred probing...

Details Method and system for implicitly encoding preferred probing... Method and system for implicitly encoding preferred probing...

2007-03-06

2007-03-06

Patel, Paresh (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

C324S754090

Reexamination Certificate

active

11010074

ABSTRACT:
Techniques for automating test pad insertion in a printed circuit board (PCB) design and fixture probe insertion in a PCB tester fixture are presented. A probe location algorithm predictably determines respective preferred probing locations from among respective sets of potential probing locations associated with a number of respective nets in a PCB design. Test pads, preferably in the form of bead probes, are added to the PCB design at the respective preferred probing locations along with, where feasible, one or more alternate probing locations chosen from among remaining ones of the respective sets of potential probing locations. During fixture design, nets with multiple test pads implemented in the PCB design are processed by the same probe location algorithm used during PCB design to determine the associated preferred and alternate probing locations for said respective nets. Fixture probes are preferably inserted in the PCB tester fixture design at respective preferred probing locations such that tips of said respective fixture probes exactly align with corresponding preferred test pads of a PCB implemented in accordance with the PCB design should the PCB be mounted in a printed circuit board tester fixture implemented in accordance with the PCB tester fixture design.

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patent: 7071717 (2006-07-01), Hoke et al.

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