Methods and apparatuses for test circuitry for a dual-polarity non-volatile memory cell

1. An integrated circuit, comprising:

a dual-polarity non-volatile memory cell; and

a test circuit having a bias voltage generator and a first switch, the bias voltage generator couples to the dual-polarity non-volatile memory cell via the first switch, further the bias voltage generator connects to a first charge storage component in the dual-polarity non-volatile memory cell via the first switch and to a second charge storage component in the dual-polarity non-volatile memory cell via a second switch.

2. The integrated circuit of claim 1 , wherein the dual-polarity non-volatile memory cell couples to its own bias generator.

3. The integrated circuit of claim 1 , wherein the first switch is a transistor or a transfer gate.

4. The integrated circuit of claim 1 , wherein the dual-polarity non-volatile memory cell is included in an embedded memory.

5. An integrated circuit, comprising:

a dual-polarity non-volatile memory cell;

a test circuit having a bias voltage generator and a first switch, the bias voltage generator couples to the dual-polarity non-volatile memory cell via the first switch; and

a third switch and a fourth switch to connect the dual-polarity non-volatile memory cell to an external bias voltage generator.

6. The integrated circuit of claim 5 , wherein the external bias voltage generator is operable to provide at least one of a plurality of discrete voltage levels and a voltage level that can vary throughout a range.

7. An integrated circuit, comprising:

a dual-polarity non-volatile memory cell;

a test circuit having a bias voltage generator and a first switch, the bias voltage generator couples to the dual-polarity non-volatile memory cell via the first switch; and

a sense amplifier, wherein the test circuit to determine a sense error of the sense amplifier connected between a first charge storage component and a second charge storage component in the dual-polarity non-volatile memory cell.

8. An integrated circuit, comprising:

a dual-polarity non-volatile memory cell;

a test circuit having a bias voltage generator and a first switch, the bias voltage generator couples to the dual-polarity non-volatile memory cell via the first switch; and

a differential sense amplifier, wherein the test circuit to determine distribution of sense error of two or more differential sense amplifiers.

9. An integrated circuit, comprising:

a dual-polarity non-volatile memory cell, wherein a first charge storage component in the dual-polarity non-volatile memory cell is tested to a positive polarity and a second charge storage component in the dual-polarity non-volatile memory cell is tested to a negative polarity; and

a test circuit having a bias voltage generator and a first switch, the bias voltage generator couples to the dual-polarity non-volatile memory cell via the first switch.

10. A machine readable medium that stores data representing an integrated circuit, comprising:

a dual-Polarity non-volatile memory cell;

a test circuit having a bias voltage generator and a first switch, the bias voltage generator connects to the dual-polarity non-volatile memory cell via the first switch, wherein the bias voltage generator is internal to the integrated circuit; and

a memory compiler to provide a layout utilized to generate one or more lithographic masks used in the fabrication of the dual-polarity non-volatile memory cell and the test circuit.

11. The machine readable medium of claim 10 , wherein the one or more lithographic masks are utilized during a Complementary Metal Oxide Semiconductor logic process employing equal or less than 1.0 micron technology.

12. A machine readable medium that stores data representing an integrated circuit, comprising:

a dual-polarity non-volatile memory cell;

a test circuit having a bias voltage generator and a first switch, the bias voltage generator connects to the dual-polarity non-volatile memory cell via the first switch, wherein the bias voltage generator is internal to the integrated circuit, further the bias voltage generator connects to a first charge storage component in the dual-polarity non-volatile memory cell via the first switch and to a second charge storage component in the dual-polarity non-volatile memory cell via a second switch.

13. A method, comprising:

connecting an external bias voltage generator to a dual-polarity non-volatile memory cell;

supplying a plurality of test voltage levels with the external bias voltage generator to the dual-polarity non-volatile memory cell; and

determining a sense error of a differential sense amplifier connected to the dual-polarity non-volatile memory cell.

14. The method of claim 13 , further comprising:

determining the sense error results based on an output of the differential sense amplifier connected to the dual-polarity non-volatile memory cell.

15. The method of claim 13 , further comprising:

supplying a range of analog voltages with the external bias voltage generator when supplying the plurality of test voltage levels to determine the sense error.

16. The method of claim 13 , further comprising:

determining an offset bias voltage of a first portion of the dual-polarity non-volatile memory cell.

17. The method of claim 16 , further comprising:

incrementally stepping through a plurality of discrete voltage levels to determine the offset bias voltage of the first portion of the dual-polarity non-volatile memory cell.

18. An apparatus, comprising:

means for connecting an external bias voltage generator to a dual-polarity non-volatile memory cell;

means for supplying a plurality of test voltage levels with the external bias voltage generator to the dual-polarity non-volatile memory cell; and

means for determining a sense error of a differential sense amplifier connected to the dual-polarity non-volatile memory cell.