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Rakesh Kumar

Jun 4, 2012
5
Joined
Jun 4, 2012
Messages
5
Sir,
I'm very interested in electronics from my childhood and when i reached in class 8th, there was one question (in attachment) which always roaming in my mind. I ask many people and even search internet but not found the answer.

Now, this is my first post to this forum and i hope i get the answer soon.

I have more questions :confused: on the same topic after i get the first reply.

So waiting for your replies....!!
 

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Harald Kapp

Moderator
Moderator
Nov 17, 2011
13,700
Joined
Nov 17, 2011
Messages
13,700
Impossible to say from the photo. It is most probably a chip that is directly bonded to the PCB and sealed with a blob of epoxy.

Harald
 

Rakesh Kumar

Jun 4, 2012
5
Joined
Jun 4, 2012
Messages
5
I had seen many PCB that contain the same black hard material coated on them.
What is actually under this black material.
 
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