摘要:
A sputtering chamber has a sputtering target comprising a backing plate and a sputtering plate. The backing plate has a groove. The sputtering plate comprises a cylindrical mesa having a plane, and an annular inclined rim surrounding the cylindrical mesa. In one version, the backing plate comprises a material having a high thermal conductivity and a low electrical resistivity. In another version, the backing plate comprises a backside surface with a single groove or a plurality of grooves.
摘要:
A process kit for a sputtering chamber comprises a deposition ring, cover ring, and a shield assembly, for placement about a substrate support in a sputtering chamber. The deposition ring comprising an annular band with an inner lip extending transversely, a raised ridge substantially parallel to the substrate support, an inner open channel, and a ledge radially outward of the raised ridge. A cover ring at least partially covers the deposition ring, the cover ring comprising an annular plate comprising a footing which rests on a surface about the substrate support, and downwardly extending first and second cylindrical walls.
摘要:
A sputtering target for a sputtering chamber comprises a backing plate and titanium sputtering plate mounted on the backing plate. The sputtering plate comprises a central cylindrical mesa having a plane, and a peripheral inclined annular rim surrounding the cylindrical mesa, the annular rim being inclined relative to the plane of the cylindrical mesa by an angle of at least about 8°.
摘要:
In some embodiments, substrate processing apparatus may include a chamber body; a lid disposed atop the chamber body; a target assembly coupled to the lid, the target assembly including a target of material to be deposited on a substrate; an annular dark space shield having an inner wall disposed about an outer edge of the target; a seal ring disposed adjacent to an outer edge of the dark space shield; and a support member coupled to the lid proximate an outer end of the support member and extending radially inward such that the support member supports the seal ring and the annular dark space shield, wherein the support member provides sufficient compression when coupled to the lid such that a seal is formed between the support member and the seal ring and the seal ring and the target assembly.
摘要:
Apparatus for processing substrates are provided herein. In some embodiments, an apparatus includes a process kit comprising a shield having one or more sidewalls configured to surround a first volume, the first volume disposed within an inner volume of a process chamber; and a first ring moveable between a first position, wherein the first ring rests on the shield, and a second position, wherein a gap is formed between an outer surface of the first ring and an inner surface of the one or more sidewalls, wherein a width of the gap is less than about two plasma sheath widths for a plasma formed at a frequency of about 40 MHz or higher and at a pressure of about 140 mTorr or lower.
摘要:
A processing system may include a target having a central axis normal thereto; a source distribution plate having a target facing side opposing a backside of the target, wherein the source distribution plate includes a plurality of first features such that a first distance of a first radial RF distribution path along a given first diameter is about equal to a second distance of an opposing second radial RF distribution path along the given first diameter; and a ground plate opposing a target opposing side of the source distribution plate and having a plurality of second features disposed about the central axis and corresponding to the plurality of first features, wherein a third distance of a first radial RF return path along a given second diameter is about equal to a fourth distance of an opposing second radial RF return path along the given second diameter.
摘要:
Apparatus for processing substrates are provided herein. In some embodiments, an apparatus for processing a substrate includes a substrate support that may include a dielectric member having a surface to support a substrate thereon; one or more first conductive members disposed below the dielectric member and having a dielectric member facing surface adjacent to the dielectric member; and a second conductive member disposed about and contacting the one or more first conductive members such that RF energy provided to the substrate by an RF source returns to the RF source by traveling radially outward from the substrate support along the dielectric member facing surface of the one or more first conductive members and along a first surface of the second conductive member disposed substantially parallel to a peripheral edge surface of the one or more first conductive members after travelling along the dielectric layer facing surface.
摘要:
In some embodiments, a feed structure to couple RF energy to a target may include a body having a first end to receive RF energy and a second end opposite the first end to couple the RF energy to a target, the body further having a central opening disposed through the body from the first end to the second end; a first member coupled to the body at the first end, wherein the first member comprises a first element circumscribing the body and extending radially outward from the body, and one or more terminals disposed in the first member to receive RF energy from an RF power source; and a source distribution plate coupled to the second end of the body to distribute the RF energy to the target, wherein the source distribution plate includes a hole disposed through the plate and aligned with the central opening of the body.
摘要:
Substrate processing systems are provided herein. In some embodiments, a substrate processing system may include a target assembly having a target comprising a source material to be deposited on a substrate; a grounding assembly disposed about the target assembly and having a first surface that is generally parallel to and opposite a backside of the target assembly; a support member coupled to the grounding assembly to support the target assembly within the grounding assembly; one or more insulators disposed between the backside of the target assembly and the first surface of the grounding assembly; and one or more biasing elements disposed between the first surface of the grounding assembly and the backside of the target assembly to bias the target assembly toward the support member.
摘要:
Methods for depositing metal in high aspect ratio features formed on a substrate are provided herein. In some embodiments, a method includes applying first RF power at VHF frequency to target comprising metal disposed above substrate to form plasma, applying DC power to target to direct plasma towards target, sputtering metal atoms from target using plasma while maintaining pressure in PVD chamber sufficient to ionize predominant portion of metal atoms, depositing first plurality of metal atoms on bottom surface of opening and on first surface of substrate, applying second RF power to redistribute at least some of first plurality from bottom surface to lower portion of sidewalls of the opening, and depositing second plurality of metal atoms on upper portion of sidewalls by reducing amount of ionized metal atoms in PVD chamber, wherein first and second pluralities form a first layer deposited on substantially all surfaces of opening.