Substrate processing apparatus
A substrate processing apparatus includes: a first process chamber where a substrate is subjected to a first process; a second process chamber where the substrate is subjected to a second process; a substrate support unit; a first electrode; a second electrode; an elevating unit; a gas supply unit supplying a first gas, a second gas and a third gas to the substrate; a power supply unit; a control unit controlling the elevating unit, the gas supply unit and the power supply unit so as to: (a) perform the first process by supplying the second gas activated by the first electrode and the first gas to the substrate; (b) move the substrate on the substrate support unit from the first process chamber to the second process chamber after (a); and (c) perform the second process by supplying the third gas activated by the second electrode to the substrate after (b).
1. A substrate processing apparatus comprising:
a first process chamber;
a second process chamber spatially in communication with the first process chamber;
a substrate support unit configured to support a substrate;
a first electrode provided in the first process chamber to face the substrate support unit;
a second electrode provided at a tide wall of the second process chamber, wherein the second electrode comprises a coil inserted in a quartz member to surround the second process chamber;
an elevating unit configured to move the substrate support unit between the first process chamber and the second process chamber;
a gas supply unit configured to supply a first gas, a second gas and a third gas to the substrate;
a power supply unit configured to apply electric power to the first electrode and the second electrode;
a first exhaust unit provided in the first process chamber and configured to exhaust an atmosphere on the substrate support unit;
a second exhaust unit provided in the second process chamber to be located below the substrate support unit and configured to exhaust the atmosphere above the substrate support unit a gas exhaust path; and
a control unit configured to control the elevating unit, the gas supply unit, the power supply unit, the first exhaust unit and the second exhaust unit, and the control unit configured to perform:
(a) after the substrate is transferred into the first process chamber, exhausting an inner atmosphere of the first process chamber via the first exhaust unit while supplying, to the substrate, at least one selected from the group consisting of the first gas, the second gas and the third gas activated by the first electrode;
(b) after performing (a), forming the gas exhaust path in the second process chamber and between the substrate support unit and the quartz member, wherein a side surface of the substrate faces the quartz member by vertically transferring the substrate support unit from the first process chamber to the second process chamber by the elevating unit; and
(c) after performing (b), exhausting the inner atmosphere of the first process chamber and an inner atmosphere of the second process chamber via the second exhaust unit along the gas exhaust path while supplying, to the substrate, at least one selected from the group consisting of the first gas, the second gas and the third gas activated by the second electrode.
2. The substrate processing apparatus of claim 1 , wherein the control unit is configured to control the elevating unit, the gas supply unit and the power supply unit so as to: (d) perform a first process in the first process chamber, wherein the first process at least comprises supplying the second gas activated by the first electrode and the first gas to the substrate; (e) move the substrate placed on the substrate support unit from the first process chamber to the second process chamber; and (f) perform a second process in the second process chamber, wherein the second process at least comprises supplying the third gas activated by the second electrode to the substrate.
3. The substrate processing apparatus of claim 2 , wherein the first electrode is configured to generate a capacitively coupled plasma, and the second electrode is configured to generate an inductively coupled plasma.
4. The substrate processing apparatus of claim 2 , wherein the control unit is further configured to control the elevating unit to move the substrate placed on the substrate support unit before (f) such that an upper surface of the substrate is lower than a lower end of the coil and the side surface of the substrate faces the quartz member.
5. The substrate processing apparatus of claim 2 , further comprising: a magnetic field generating unit provided at one side of the second electrode, wherein the control unit is further configured to control the magnetic field generating unit to generate a horizontal magnetic field parallel to the substrate before (f).
6. The substrate processing apparatus of claim 2 , wherein the power supply unit is configured to supply a DC voltage to the first electrode, and the control unit is further configured to control the power supply unit to apply a negative voltage to the first electrode before (f).
7. The substrate processing apparatus of claim 2 , wherein the control unit is further configured to control the power supply unit and the gas supply unit such that a density of active species generated during the second process is higher than that of active species generated during the first process.
8. The substrate processing apparatus of claim 2 , wherein the control unit is further configured to control the elevating unit, the gas supply unit and the power supply unit such that (e) is performed after performing (d) and (f) is performed after performing (e).
9. The substrate processing apparatus of claim 3 , wherein the control unit is further configured to control the elevating unit to move the substrate placed on the substrate support unit before (f) such that an upper surface of the substrate is lower than a lower end of the coil and the side surface of the substrate faces the quartz member.
10. The substrate processing apparatus of claim 3 , further comprising: a magnetic field generating unit provided at one side of the second electrode, wherein the control unit is further configured to control the magnetic field generating unit to generate a horizontal magnetic field parallel to the substrate before (f).
11. The substrate processing apparatus of claim 3 , wherein the power supply unit is configured to supply a DC voltage to the first electrode, and the control unit is further configured to control the power supply unit to apply a negative voltage to the first electrode before (f).
12. The substrate processing apparatus of claim 3 , wherein the control unit is further configured to control the power supply unit and the gas supply unit such that a density of active species generated during the second process is higher than that of active species generated during the first process.
13. The substrate processing apparatus of claim 4 , wherein the power supply unit is configured to supply a DC voltage to the first electrode, and the control unit is further configured to control the power supply unit to apply a negative voltage to the first electrode before (f).
14. The substrate processing apparatus of claim 5 , wherein the power supply unit is configured to supply a DC voltage to the first electrode, and the control unit is further configured to control the power supply unit to apply a negative voltage to the first electrode before (f).
15. The substrate processing apparatus of claim 9 , further comprising: a magnetic field generating unit provided at one side of the second electrode, wherein the control unit is further configured to control the magnetic field generating unit to generate a horizontal magnetic field parallel to the substrate before (f).
16. The substrate processing apparatus of claim 4 , wherein the power supply unit is configured to supply a DC voltage to the first electrode, and the control unit is further configured to control the power supply unit to apply a negative voltage to the first electrode before (f).
17. The substrate processing apparatus of claim 9 , wherein the control unit is further configured to control the power supply unit and the gas supply unit such that a density of active species generated during the second process is higher than that of active species generated during the first process.
18. The substrate processing apparatus of claim 15 , wherein the control unit is further configured to control the power supply unit and the gas supply unit such that a density of active species generated during the second process is higher than that of active species generated during the first process.