US Patent 11068342 Redundancy data in integrated memory assembly

Technology for recovering data in memory dies is disclosed. A set of codewords may be stored across a set of memory dies. One of the memory dies stores redundancy information that is based on information from each codeword in the set of codewords. Each of the memory dies is bonded to control die through bond pads that allow communication between the control die and the memory die. If decoding of one of more codewords fails, the redundancy information may be used to recover data bits of all the codewords in the set. The redundancy information may be sent to a memory controller that is in communication with the control dies, which performs the data recovery.