Counterfeit research library. This is focused on what the chip markings assert as opposed to what the seller asserts. For example, a buyer could be unhappy if they bought a new chip with ESD damage, but its more of a gray area vs a chip that has been remarked and has an incorrect die.

Counterfeit IC: a chip (ie marking) that misrepresents the product. This might include:

• Incorrect die
• Missing die
• Incorrect date
• Incorrect speed grade

These are also of interest but not the primary focus:

• Used vs new
• General EOS such as ESD damage

Sometimes a manufacturer will remark its own chips (ex: downgrading speed). However these are rare and less common in modern times. (TODO: find example)

max232

usb_serial

https://twitter.com/johndmcmaster/status/1527558230871666688

i7-770K: https://twitter.com/RealTimeKodi/status/1493783218285264896

TODO: STM32 counterfeit site

I've heard Xilinx parts are one of the most profitable to counterfeit

Commercial products