Patent ID: 9552832
Date: 2017-01-24
CPC Classifications: G11B,G11C,H01L

Claim:
1. A memory system for storing information comprising: a substrate; magnetic material operatively associated with the substrate, the magnetic material having at least one ferromagnetic region configured to store data having a first state of high permeability and a second state of low permeability; the at least one ferromagnetic region in the first state configured to be modifiable to a state of low permeability upon heating to permit modification of the bits of data; at least one laser operatively associated with the at least ferromagnetic region which selectively provides heat to the at least one ferromagnetic region to change its permeability; and a plurality of connectors operatively connected to the laser and adapted to be connected to a current source that provides a current which causes the laser to emit light that heats to change the permeability of the at least one ferromagnetic region.