Description: ULTRARAM™ is a flash-like floating-gate memory. However, unlike flash, which uses a highly-resistive oxide barrier to retain charge in the floating gate,
Lower than DRAM
Lower than Flash
A memory is non-volatile if it is able to retain data when unpowered, requiring a robust logic state that is difficult to change, e.g. flash. In contrast, a fast memory seemingly requires the logic state to be frail so that it can be changed quickly and easily, e.g. DRAM. Therefore, a memory that is fast and non-volatile seemingly requires contradictory physical properties and has long been dismissed as unachievable.