Magneto resistor sensor with differential collectors for a non-volatile random access ferromagnetic memory

A method of storing and retrieving binary data, comprising the steps of:

• a) providing a memory bit, made of ferromagnetic material, having a remnant polarity and a height to width ratio of greater than 1:1;
• b) directing the polarity of the bit by sending a current along a write line, located proximate the bit;
• c) detecting the polarity of the bit by:
• 1) sending a current through a magneto sensor that is physically coupled with the bit;
• and
• 2) reading an electrical differential created by the magneto sensor;
• and
• d) using a control circuit to both direct the polarity of the bit and detect polarity of the bit.

A memory circuit, having a plurality of memory cells, each memory cell comprising:

• a) a bit made of ferromagnetic material, having a remnant polarity and a height to width ration of greater than 1:1;
• b) write means, coupled proximate the bit for writing a remnance polarity into the bit during a write operation;
• c) read means, physically coupled to the bit for reading the remnant polarity of the bit during a read operation;
• and
• d) control means, coupled to the read means and the write means, for controlling which cell is to be activated during the read and write operations.

A method of storing and reading binary data comprising the steps of:

• a) providing a bit made of ferromagnetic material having a remnant polarity and a height to width ration of greater than 1:1;
• b) writing a remnant polarity into the bit during a write operation;
• c) reading the remnant polarity of the bit during a read operation;
• and
• d) using a singular control circuit to perform both steps b) and c) above.