摘要:
A plasma etching apparatus includes a pressure-reducible chamber 1, a placement section 3 for supporting an object to be treated within the chamber 1, a dielectric member 5 for sealing an upper opening of the chamber 1, and a coil 4 provided outside the dielectric member 5. The coil 4 generates a plasma 6 in the chamber 1 by inductive coupling so that the object 2 is subjected to etching. The dielectric member 5 has recess portions 5c discontinuous to one another. Portions of the dielectric member 5 form large-thickness portions 5b. A thickness of the dielectric member 5 in the recess portions 5c is smaller than a thickness of the large-thickness portions 5b. The recess portions 5c are placed according to distribution densities of conductors constituting the coil 4.
摘要:
A plasma etching apparatus includes a pressure-reducible chamber 1, a placement section 3 for supporting an object to be treated within the chamber 1, a dielectric member 5 for sealing an upper opening of the chamber 1, and a coil 4 provided outside the dielectric member 5. The coil 4 generates a plasma 6 in the chamber 1 by inductive coupling so that the object 2 is subjected to etching. The dielectric member 5 has recess portions 5c discontinuous to one another. Portions of the dielectric member 5 form large-thickness portions 5b. A thickness of the dielectric member 5 in the recess portions 5c is smaller than a thickness of the large-thickness portions 5b. The recess portions 5c are placed according to distribution densities of conductors constituting the coil 4.
摘要:
A tray for a dry etching apparatus includes substrate accommodation holes penetrating a thickness direction and a substrate support portion supporting an outer peripheral edge portion of a lower surface of a substrate. A dielectric plate includes a tray support surface supporting a lower surface of the tray, substrate placement portions inserted from a lower surface side of the tray into the substrate accommodation holes and having a substrate placement surface at its upper end surface. A dc voltage applying mechanism applies a dc voltage to an electrostatic attraction electrode. A heat conduction gas supply mechanism supplies a heat conduction gas between the substrate and substrate placement surface. The substrate is retained on the substrate placement surface with high degree of adhesion. Cooling efficiency of the substrate is improved and processing is uniform at the entire region of the substrate surface.
摘要:
A tray 15 for a dry etching apparatus 1 has substrate accommodation holes 19A to 19D penetrating thickness direction and a substrate support portion 21 supporting an outer peripheral edge portion of a lower surface 2a of a substrate 2. A dielectric plate 23 has a tray support surface 28 supporting a lower surface of the tray 15, substrate placement portions 29A through 29D inserted from a lower surface side of the tray 15 into the substrate accommodation holes 19A through 19D and having a substrate placement surface 31 at its upper end surface for placing the substrate 2. A dc voltage applying mechanism 43 applies a dc voltage to an electrostatic attraction electrode 40. A heat conduction gas supply mechanism 45 supplies a heat conduction gas between the substrate 2 and substrate placement surface 31. The substrate 2 can be retained on the substrate placement surface 31 with high degree of adhesion. This results in that the cooling efficiency of the substrate 2 is improved and processing is uniformed at the entire region of the substrate surface including the vicinity of the outer peripheral edge.
摘要:
A tray for a dry etching apparatus includes substrate accommodation holes penetrating a thickness direction and a substrate support portion supporting an outer peripheral edge portion of a lower surface of a substrate. An upper portion includes a tray support surface supporting a lower surface of the tray, substrate placement portions on each of which a lower surface of the substrate to be placed, and a concave portion for accommodating the substrate support portion. A dc voltage applying mechanism applies a dc voltage to an electrostatic attraction electrode. A heat conduction gas supply mechanism supplies a heat conduction gas between the substrate and substrate placement portion. During carrying of the substrate, the outer peripheral edge of the lower surface of the substrate is supported by the substrate accommodation hole. During processing of the substrate, the substrate support portion is accommodated in the concave portion.
摘要:
A tray 15 for a dry etching apparatus 1 has substrate accommodation holes 19A to 19D penetrating thickness direction and a substrate support portion 21 supporting an outer peripheral edge portion of a lower surface 2a of a substrate 2. A dielectric plate 23 has a tray support surface 28 supporting a lower surface of the tray 15, substrate placement portions 29A through 29D inserted from a lower surface side of the tray 15 into the substrate accommodation holes 19A through 19D and having a substrate placement surface 31 at its upper end surface for placing the substrate 2. A dc voltage applying mechanism 43 applies a dc voltage to an electrostatic attraction electrode 40. A heat conduction gas supply mechanism 45 supplies a heat conduction gas between the substrate 2 and substrate placement surface 31. The substrate 2 can be retained on the substrate placement surface 31 with high degree of adhesion. This results in that the cooling efficiency of the substrate 2 is improved and processing is uniformed at the entire region of the substrate surface including the vicinity of the outer peripheral edge.
摘要:
A dry etching apparatus includes a tray for conveying substrates. The tray has substrate housing holes as through holes each capable of housing the three substrates. The substrates are supported by a substrate support section protruding from a hole wall of each of the substrate housing holes. A stage is provided in a chamber in which plasma is generated. The stage includes substrate installation sections to be inserted from a lower surface side of the tray to the substrate housing holes so that lower surfaces of the plurality of the substrates transferred from the substrate support section are installed on substrate installation surfaces that are their upper end surfaces. High shape controllability and favorable productivity for the angular substrate can be implemented while preventing increased in size of the apparatus.
摘要:
In a plasma processing apparatus, thrust-up pins are elevated and a thrust-up force is detected when electrostatic attraction for a substrate by a substrate holding device is ceased after completion of plasma processing, the elevation of the thrust-up pins is ceased upon detection of a detection threshold, and a stepped elevating operation in which the elevation and stoppage of the thrust-up pins are repeated a plurality of times are thereafter commenced on condition that the detected thrust-up force falls to or below the detection threshold and that release of the substrate from a placement surface has not been completed. In the stepped elevating operation, operation timing of the thrust-up device is controlled so that the completion of the release of the substrate from the placement surface is detected when the thrust-up pins are stopped after being elevated and so that the stepped elevating operation is continued on condition that the release has not been completed.
摘要:
In a plasma processing apparatus, thrust-up pins are elevated and a thrust-up force is detected when electrostatic attraction for a substrate by a substrate holding device is ceased after completion of plasma processing, the elevation of the thrust-up pins is ceased upon detection of a detection threshold, and a stepped elevating operation in which the elevation and stoppage of the thrust-up pins are repeated a plurality of times are thereafter commenced on condition that the detected thrust-up force falls to or below the detection threshold and that release of the substrate from a placement surface has not been completed. In the stepped elevating operation, operation timing of the thrust-up device is controlled so that the completion of the release of the substrate from the placement surface is detected when the thrust-up pins are stopped after being elevated and so that the stepped elevating operation is continued on condition that the release has not been completed.
摘要:
Provided is a wafer reclamation method for reclaiming a semiconductor wafer, on which a different material layer is formed, by removing the different material layer. The wafer reclamation method includes a physically removing step of physically removing the different material layer, a film forming step of forming a film on a surface of the semiconductor wafer from which the different material layer has been removed in the physically removing step, and a dry etching step of etching the semiconductor wafer by plasma together with the film formed in the film forming step.