Low power electrically alterable nonvolatile memory cells and arrays

A method of providing a memory cell, comprising:

• providing a body of a semiconductor material having a first conductivity type;
• arranging a filter of a conductor-filter system in contact with a first conductor of the conductor-filter system;
• arranging at least portion of a second conductor of a conductor-insulator system in contact with the filter;
• arranging a first insulator of the conductor-insulator system in contact with the second conductor at an interface;
• arranging a first region spaced from the second conductor;
• arranging a channel of the body between the first region and the second conductor;
• arranging a second insulator adjacent to the first region;
• arranging a charge storage region between the first and the second insulators;
• arranging a first portion of a word-line adjacent to and insulated from the charge storage region;
• arranging a second portion of the word-line adjacent to and insulated from the body;
• and
• controlling flow of charge carriers of one polarity through the filter in one direction using a first set of electrically alterable potential barriers of the filter.

A method of providing a memory cell, comprising:

• providing a body of a semiconductor material having a first conductivity type;
• arranging a filter of a conductor-filter system that includes a plurality of barriers and that is in contact with a first conductor of the conductor-filter system;
• arranging at least portion of a second conductor of a conductor-insulator system in contact with the filter;
• arranging a first insulator of the conductor-insulator system in contact with the second conductor at an interface;
• arranging a first region spaced from the second conductor;
• arranging a channel of the body between the first region and the second conductor;
• arranging a second insulator adjacent to the first region;
• arranging a charge storage region between the first and the second insulators;
• arranging a first portion of a word-line adjacent to and insulated from the charge storage region;
• and
• arranging a second portion of the word-line adjacent to and insulated from the body.