There are, obviously, no moving parts in Solid State Media – therefore data recovery from solid state media typically involves working with ICs and ancillary components at the microscopic level .
Failure Types - Solid State / SSD / USB Memory Stick
Excepting when used in hostile environments, SSDs probably fail roughly as often as conventional hard drives, but for different reasons. SSDs can fail due to connection failures / mechanical damage, fimware issues, electronic issues ( controller, transistor, capacitor, memory IC etc. ), sudden power loss etc.
A lot of data recoveries on SSDs require re-homing the Memory IC and extracting a raw dump of the data contained therein. This raw dump, then, has to be translated to allow decoding and extraction the user data contained therein. Encryption can often add to the complexity of USB Memory Stick data recovery operations.