Cascade Microtech Pyramid Probes - Manual (Page 4)

PN 153-690-3 www.cascademicrotech.com Pyramid Probes: New Core Inspection • 4
3. Inspect the core using the 20x objective.
Inspection Area Criteria
Tips
Do all tips appear uniform in size and shape?
On a new core, fail for any tips that are missing, tilted or crushed .
Electrical Traces
Are any anomalies present that affect the electrical trace metal?
An anomaly is something different,
abnormal, peculiar or not easily classified.
Anomalies greater than 50% of an
electrical trace width and found within the
probe face are considered a reject on new
cores.
Anomalies less than 50% of an electrical
trace width and found within the probe face
are considered acceptable on new cores.
Anomalies affecting the ground grid are
acceptable.
Are there any cracks in the electrical traces?
Cracks greater than 50% of an electrical
trace width are considered a reject on new
cores.
Cracks less than 50% of an electrical trace
width are considered acceptable on new
cores.
Cracks affecting the ground grid are
acceptable.
Missing probe tip,
not acceptable
Tilted tip, not
acceptable
Tilted tip, not
acceptable
Missing probe tip
(close up), not
acceptable
Anomaly >50% of the trace Anomaly >50% of the trace
Crack >50% of the trace Crack >50% of the trace
Pyramid Probes: New Core Inspection