NEW!! - Preliminary
Guidance for Optical Inspection for Metal Whiskers
The following videos offer PRELIMINARY
guidance to illustrate the complexities associated with optical
inspection of hardware for metal whiskers. Emphasis has been placed on
importance of lighting source, angle of incidence and angle of
inspection. The techniques illustrated are not guaranteed to find all
whiskers in all situations. Rather they are provided in hopes of
improving the probability of detection when only optical inspection techniques
are available.
Both tin and zinc whisker specimens are
included as noted. Some PWBs (old cell phones) were intentionally seeded
with zinc whiskers to help demonstrate the complexities associated with
optical inspection of very thin metallic filaments.
Additional videos are under development to
highlight various aspects of inspection for metal whiskers. Stay
Tuned!!!
Depending on the Internet Web Browser you
are using, you may have to "Save File As" and then Open Windows
Media Player to View the Movies
File sizes range from ~10
to 20 Mbytes
| Video # |
Subject |
Production Date |
Description |
| 0 |
Mechanical
Detachment of Metal Whiskers -
Preparing a Sample Suitable for
Demonstrating Optical Inspection Techniques and Complexities |
April
27, 2006 |
Video
shows how zinc whiskers were detached from a zinc-coated piece of steel
in order to scatter them on a PWB for further demos on inspection
techniques |
| 1 |
Video
#1
Guidance for Optical Inspection of Metal Whisker Debris on PWB |
April
27, 2006 |
Demo
of complexities of lighting technique to see metal whisker debris lying on a PWB |
| 2 |
Video
#2
Optical Inspection Techniques for Metal Whisker Debris on Top of IC Package |
April
27, 2006 |
Demo
of complexities of lighting technique to see metal whiskers lying on top of a black IC package |
| 3 |
Video
#3
Optical Inspection Techniques for Metal Whiskers Attached to Lock Washer |
May
2, 2006 |
Demo
of complexities of lighting technique to see metal whiskers on a lock
washer |
| 4 |
Video
#4
Optical Inspection Techniques for Metal Whiskers Inside of Metal Can
Transistor Package |
May
2, 2006 |
Examination
of tin whiskers growing on internal case walls of an old tin-plated
transistor package |
| 5 |
Video
#5
Optical Inspection Techniques: A Compilation of Examples |
May
20, 2008 |
Compilation
video of various metal whisker inspections using optical microscopy |
|
MORE
VIDEOS Are in Production |
|
|
