Semiconductor device
View Patent ↗A semiconductor device may be provided. The semiconductor device may include a reference mat including a reference bit line and a reference word line, the reference mat, located adjacent to a normal mat, and the reference mat configured such that a capacitance of the reference bit line is adjusted based on a signal of the reference word line. The semiconductor device may include a drive controller configured to drive the signal of the reference word line with a drive voltage based on a boosting voltage, the drive voltage having a lower voltage level than the boosting voltage.
1. A semiconductor device comprising:
a reference mat including a reference bit line and a reference word line, the reference mat, located adjacent to a normal mat, and the reference mat configured such that a capacitance of the reference bit line is adjusted based on a signal of the reference word line; and
a drive controller configured to drive the signal of the reference word line with a drive voltage based on a boosting voltage, the drive voltage having a lower voltage level than the boosting voltage,
wherein the drive controller includes:
a voltage generator configured to generate the drive voltage at the voltage level lower than the boosting voltage; and
a driver configured to drive the reference word line with the drive voltage,
wherein the drive voltage is applied to the driver through a power supply line of the driver.
2. The semiconductor device according to claim 1 , wherein the reference mat includes a plurality of reference cells, each of the reference cells, respectively, formed at an intersection region of the reference word line and the reference bit line.
3. The semiconductor device according to claim 2 , wherein each of the plurality of reference cells includes:
a switching element activated by the reference word line, and configured to include one terminal thereof coupled to the reference bit line; and
a capacitor coupled to another terminal of the switching element.
4. The semiconductor device according to claim 3 , wherein the switching element includes an NMOS transistor.
5. The semiconductor device according to claim 1 , wherein the driver includes a plurality of inverters driven by the drive voltage.
6. The semiconductor device according to claim 1 , wherein the voltage generator outputs a voltage level that is lower than a threshold voltage of a diode coupled in series between an input terminal of the boosting voltage and an output terminal of the drive voltage, as the drive voltage.
7. The semiconductor device according to claim 1 , wherein the voltage generator includes:
an NMOS diode and a PMOS diode coupled in series between an input terminal of the boosting voltage and an output terminal of the drive voltage,
wherein a gate terminal of the NMOS diode is commonly coupled to the boosting voltage input terminal, and a gate terminal of the PMOS diode is commonly coupled to the drive voltage output terminal.
8. The semiconductor device according to claim 1 , wherein the voltage generator includes:
a PMOS diode coupled between an input terminal of the boosting voltage and an output terminal of the drive voltage such that a gate terminal of the PMOS diode is commonly coupled to the drive voltage output terminal.
9. The semiconductor device according to claim 1 , wherein the voltage generator includes:
an NMOS diode coupled between an input terminal of the boosting voltage and an output terminal of the drive voltage such that a gate terminal of the NMOS diode is commonly coupled to the boosting voltage input terminal.
10. A semiconductor device comprising:
a normal mat configured to include a plurality of normal cells formed at an intersection region of a word line and a bit line;
a reference mat including a reference bit line and a reference word line, the reference mat, located adjacent to the normal mat, and the reference mat configured such that a capacitance of the reference bit line is adjusted based on a signal of the reference word line;
a sense amplifier configured to sense and amplify signals of the bit line and the reference bit line; and
a drive controller configured to drive the signal of the reference word line with a drive voltage based on a boosting voltage, the drive voltage having a lower voltage level than the boosting voltage,
wherein the drive controller includes:
a voltage generator configured to generate the drive voltage at the voltage level lower than the boosting voltage; and
a driver configured to drive the reference word line with the drive voltage,
wherein the drive voltage is applied to the driver through a power supply line of the driver.
11. The semiconductor device according to claim 10 , wherein the reference mat includes a plurality of reference cells, each of the reference cells, respectively, formed at an intersection region of the reference word line and the reference bit line.
12. The semiconductor device according to claim 11 , wherein each of the plurality of reference cells includes:
a switching element activated by the reference word line, and configured to include one terminal thereof coupled to the reference bit line; and
a capacitor coupled to another terminal of the switching element.
13. The semiconductor device according to claim 12 , wherein the switching element includes an NMOS transistor.
14. The semiconductor device according to claim 10 , wherein the driver includes a plurality of inverters driven by the drive voltage.
15. The semiconductor device according to claim 10 , wherein the voltage generator outputs a voltage level that is lower than a threshold voltage of a diode coupled in series between an input terminal of the boosting voltage and an output terminal of the drive voltage, as the drive voltage.
16. The semiconductor device according to claim 10 , wherein the voltage generator includes:
an NMOS diode and a PMOS diode coupled in series between an input terminal of the boosting voltage and an output terminal of the drive voltage,
wherein a gate terminal of the NMOS diode is commonly coupled to the boosting voltage input terminal, and a gate terminal of the PMOS diode is commonly coupled to the drive voltage output terminal.
17. The semiconductor device according to claim 10 , wherein the voltage generator includes:
a PMOS diode coupled between an input terminal of the boosting voltage and an output terminal of the drive voltage such that a gate terminal of the PMOS diode is commonly coupled to the drive voltage output terminal.
18. The semiconductor device according to claim 10 , wherein the voltage generator includes:
an NMOS diode coupled between an input terminal of the boosting voltage and an output terminal of the drive voltage such that a gate terminal of the NMOS diode is commonly coupled to the boosting voltage input terminal.