Patent classifications
H01L21/67353
SELF-CONTAINED METROLOGY WAFER CARRIER SYSTEMS
A self-contained metrology wafer carrier systems and methods of measuring one or more characteristics of semiconductor wafers are provided. A wafer carrier system includes, for instance, a housing configured for transport within the automated material handling system, the housing having a support configured to support a semiconductor wafer in the housing, and a metrology system disposed within the housing, the metrology system operable to measure at least one characteristic of the wafer, the metrology system comprising a sensing unit and a computing unit operably connected to the sensing unit. Also provided are methods of measuring one or more characteristics of a semiconductor wafer within the wafer carrier systems of the present disclosure.
Reticle carrier and associated methods
A reticle carrier described herein is configured to quickly discharge the residual charge on a reticle so as to reduce, minimize, and/or prevent particles in the reticle carrier from being attracted to and/or transferred to the reticle. In particular, the reticle carrier may be configured to provide reduced capacitance between an inner baseplate of the reticle carrier and the reticle. The reduction in capacitance may reduce the resistance-capacitance (RC) time constant for discharging the residual charge on the reticle, which may increase the discharge speed for discharging the residual charge through support pins of the reticle carrier. The increase in discharge speed may reduce the likelihood that an electrostatic force in the reticle carrier may attract particles in the reticle carrier to the reticle. This may reduce pattern defects transferred to substrates that are patterned using the reticle, may increase semiconductor device manufacturing quality and yield, and may reduce scrap and rework of semiconductor devices and/or wafers.
RETICLE POD INNER POD HAVING DISSIMILAR MATERIAL AT CONTACT SURFACE INTERFACES
Reticle pod inner pods include a cover and a baseplate, with the cover and the baseplate contacting one another at contact surfaces. The contact surfaces of the cover and the baseplate each include different materials. The different materials can each be metals. The different materials can differ in hardness. The difference in hardness can be 50 Brinell hardness or greater. One of the different materials can be a ductile material, having elongation at break of 25% or greater. Methods can include providing the cover and the baseplate each including a first material, and providing a second, different material at the contact surfaces of one of the cover or the baseplate.
METHOD FOR PRODUCING CRYSTAL SUBSTRATE
A method for producing a crystal substrate includes preparing, measuring, holding, and machining. The preparing prepares a crystal substrate body including a curved crystal lattice plane. The measuring measures a shape feature of the crystal lattice plane. The holding holds the crystal substrate body in a warped state in accordance with the shape feature measured by the measuring, to more flatten the crystal lattice plane than the crystal lattice plane at the preparing. The machining machines a surface of the crystal substrate body held in the warped state, to flatten the surface.
RETICLE ENCLOSURE FOR LITHOGRAPHY SYSTEMS
A reticle enclosure includes a base including a first surface, a cover including a second surface and coupled to the base with the first surface facing the second surface. The base and the cover form an internal space that includes a reticle. The reticle enclosure includes restraining mechanisms arranged in the internal space and for securing the reticle, and structures disposed adjacent the reticle in the internal space. The structures enclose the reticle at least partially, and limit passage of contaminants between the internal space and an external environment of the reticle enclosure. The structures include barriers disposed on the first and second surfaces. In other examples, a padding is installed in gaps between the barriers and the first and second surfaces. In other examples, the structures include wall structures disposed on the first and second surfaces and between the restraining mechanisms.
Process box, arrangements and methods for processing coated substrates
A transportable process box for processing substrates coated on one side is described. The box has a base for the placement of a first substrate in a manner such that the latter is supported over the full area, a frame, a cover which is placed onto the frame, and an intermediate element which is arranged between the base and the cover and is intended for the placement of a second substrate in a manner such that the latter is supported over the full area. Arrangements and methods for processing substrates are also described.
Wafer transport system and method for operating the same
The present invention relates to a wafer transport system and a method of operating the same. The wafer transport system comprises at least one semiconductor apparatus, a track, a transfer device, a positioning device, a carrier and a cleaning device. The wafer transport system transports wafers along the at least one semiconductor apparatus via the carrier riding on the track. The transfer device transfers the wafers from the carrier to the at least one semiconductor apparatus. The positioning device identifies and controls the position of the carrier on the track. The cleaning device maintains the cleanliness of the wafers. The present invention provides advantages for improving the yield rate of a wafer, shortening the fabrication time of a wafer, and offering the flexibility and the extendibility to a wafer transport system.
Reticle pod
A dual containment pod having an outer pod and an inner pod that provides support structure and environmental control means. The inner pod includes a base having a flat, polished surface with protrusions upon which the reticle seats and providing a gap between the reticle and the polished surface. The gap separates the reticle from the flat, polished surface of the base and is dimensioned to inhibit migration of particles into the gap, thereby preventing contamination of sensitive surfaces of the wafer or reticle. The top cover of the inner pod seats on the polished surface proximate a periphery of the base. Moveable reticle engaging pins on the top cover of the inner pod are engaged by the top cover of the outer container when the inner pod is assembled inside the outer pod providing reticle restraint.
Reticle pod and gripping unit thereof
This invention discloses a reticle pod and gripping unit thereof. The aforementioned gripping unit comprises a gripping arm and at least two gripping modules. The gripping arm is hold and configured on the reticle pod, and each gripping module is deposed on the end of the gripping arm, passing through the reticle pod. A single gripping module comprises a case, a stopper and a spring unit. The case is configured on and in the reticle pod. The stopper is configured in the case and passes through the reticle pod. The spring unit is connected with the stopper.
Reticle container
A mask container for storing a mask for photolithography, includes a cover and a base having a plurality of tapered corners. The tapered corners taper outward and downward from a top major surface of the base. The cover having the tapered corners extends downward that covers the tapered corners of the base when the cover is attached to the base. The tapered corners of the cover are tapered at about the same angle as the tapered corners of the base so that a surface of the tapered corners of the cover is substantially parallel to a corresponding surface of the tapered corner of the base when the cover is attached to the base. A recess is located in the tapered corners of the cover. A biasing member and a ball-shaped member are located in the tapered corners of the base to mate with the recess when the cover is attached to the base.