摘要:
Disclosed is a graphite disc solving a problem of poor performance uniformity of the epitaxial wafer, which is obtained during material epitaxial growth by using the graphite disc. The graphite disc includes a graphite disc body, where the graphite disc body includes a groove and a plurality of projections on a bottom wall of the groove, and the plurality of projections divide the groove into a plurality of independent regions. According to the graphite disc provided by the present disclosure, a plurality of regions are defined in the groove by using the projections, each region corresponds to one substrate, and different regions are interconnected. Compared with the graphite disc structure with one groove corresponding to one substrate in the related art, a space for gas flow is enlarged, therefore a problem that an edge of the epitaxial wafer is too thick caused by gas flow is alleviated.
摘要:
A holding device for holding a plurality of substrates for plasma-enhanced deposition of a layer from the gas phase on the substrates, having: inner carrier plates, arranged parallel to one another and designed to carry substrates on mutually opposite sides; outer carrier plates, arranged parallel to the inner carrier plates and having an inner side facing the inner carrier plates, and an outer side facing away from the inner carrier plates, wherein each outer carrier plate is designed to carry one or more substrates on its inner side and to be free of substrates on its outer side; and shielding plates which are each arranged at a distance from the outer side of the outer carrier plate such that, as seen in a plan view of the outer carrier plates, the shielding plates at least predominantly shield the outer carrier plates, wherein each shielding plate is free of substrates.
摘要:
A wafer cassette includes a front plate and a rear plate disposed opposite to face each other; and at least two top elongated rods, at least two middle elongated rods and at least two bottom elongated rods, each having a plurality of grooves shaped thereinto. The top elongated rods, the middle elongated rods and the bottom elongated rods each has two ends being pivotally connected to the front plate and the rear plate, respectively. The top elongated rods, the middle elongated rods and the bottom elongated rods each comprises a solid-iron rod enclosed with a cladding layer.
摘要:
Methods for processing semiconductor wafers, methods for loading semiconductor wafers into wafer carriers, and semiconductor wafer carriers. The methods and wafer carriers can be used for increasing the rigidity of wafers, e.g., large and thin wafers, by intentionally bowing the wafers to an extent that does not break the wafers. In some examples, a method for processing semiconductor wafers includes loading each semiconductor wafer into a respective semiconductor wafer slot of a semiconductor wafer carrier, horizontally bowing each semiconductor wafer, and moving the semiconductor wafer carrier into a processing station and processing the semiconductor wafers at the processing station while the semiconductor wafers are loaded into the semiconductor wafer carrier and horizontally bowed.
摘要:
According to the present disclosure, a semiconductor substrate handling systems and substrate carrier is provided. The substrate carrier for holding a substrate to be processed and for transporting the substrate in or through a processing area with a transport device includes a main portion for holding the substrate; a first end portion adapted to be supported by the transport device; and at least one first intermediate portion connecting the main portion with the first end portion. The at least one first intermediate portion includes one or more cut-outs adapted to reduce thermal energy transfer between the main portion and the first end portion.
摘要:
Disclosed is a light emitting device. The light emitting device includes a body having a cavity; first and second lead frames spaced apart from each other in the cavity, a gap part between the first and second lead frames, an adhesive material extending from at least one of sidewalls of the cavity to a top surface of at least one of the first and second lead frames, a light emitting chip on at least one of the first and second lead frames, and a molding member adhering to the adhesive material in the cavity.
摘要:
A container for precision substrate having one or more component formed by molding a thermoplastic resin, characterized in that the component satisfies characteristics [1] and [2] below. [1] When being brought to contact ultra high purity argon gas (impurity concentration: 1 ppb or less) at 25° C. having a flow rate of 1.2 L/min., a water amount in said argon gas after 300 minutes is 30 ppb or less per a surface area 1 cm2 of the component. [2] When being placed in the air at 100° C., an increase amount of organics in the air in 300 minutes is 150 ng or less per weight 1 g of the component. According to the container, demands for low contamination can be satisfied.
摘要:
A rotor that may be used by itself or in a processing machine for processing semiconductor wafers includes two pairs of combs. A lock down mechanism has a lock bar, temporarily engaged and moved by a loading/unloading robot, drives a retainer against the edges of the wafers, to better hold them in place during processing. Contamination via generation of particles is reduced. Combs on the rotor have a resilient strip. The lower edges of the wafers compress slightly into or deflect the resilient strip, when urged into place by the lock down mechanism.
摘要:
A wafer carrier for use in the transportation and storage of semiconductor wafers. More particularly, the invention is a wafer carrier having both a rigid structure and a corrosion resistant coating. The wafer carrier includes a unitary frame having several wafer supports joined by connecting members. The frame is coated with a material, such as a fluoropolymer, which is resistant to corrosive materials typically used in semiconductor fabrication processes.
摘要:
A method of making a wafer carrier for use in the transportation and storage of semiconductor wafers includes providing a unitary frame, forming a corrosion resistant coating, such as a fluoropolymer, covering the frame and providing wafer support elements mounted on the frame. A wafer carrier made by the present method may include a unitary frame having several wafer supports joined by connecting members. The frame is coated with a material, such as a fluoropolymer, which is resistant to corrosive materials typically used in semiconductor fabrication processes.