Fake semiconductors detect, is this true?

[Gaber Mohamed Boraey]

Hello
Please watch this video and tell me if this is really true?, can we detect the part like this?

 

[betwixt]

Taking a hammer and chisel to a transistor to see if it is genuine is not a good test. The only way to look inside a package like that is to solder all the legs to a solid surface to keep them from moving then dissolve the plastic in an organic solvent. Doing it the way in the video is like taking a car from a scrap yard crusher to see what its top speed used to be.

Brian.

 

[dick_freebird]

I have not-bad luck with scrubbing the plastic face against
sandpaper until I see the first void appear; at this point the
remaining "top glop" can peel back with tweezers and expose
the cavity. I do sometimes ruin bond wires but the goal is to
get microprobe access, not whole-chip-at-pins.

--- Updated Sep 23, 2024 ---

Supposedly H2SO4 concentrated, can boil off plastic mold
compound. However while my F/A techs used to do this for
me, I have had no luck myself with battery acid from auto
parts store. May need some more concentration, heat, ???

 

[dpaul]

Make "aquia regia" if you can get hold of H2SO4 and HCL acids (Google on the ratio of acids to be used to create aquia regia). It will most probably dissolve metal casings as well.

 

[Gaber Mohamed Boraey]

Taking a hammer and chisel to a transistor to see if it is genuine is not a good test. The only way to look inside a package like that is to solder all the legs to a solid surface to keep them from moving then dissolve the plastic in an organic solvent. Doing it the way in the video is like taking a car from a scrap yard crusher to see what its top speed used to be.

Brian.

Forget about the way of opening the component
Is it true what he say?

 

[dpaul]

Do it yourself and check it out!
No one else will try it out on your behalf here!

 

[Gaber Mohamed Boraey]

Do it yourself and check it out!
No one else will try it out on your behalf here!

Okay, thanks