摘要:
Aspects of the present invention include methods and apparatuses that may be used for monitoring substrate processing systems. One embodiment may provide an apparatus for obtaining in-situ data regarding processing of a substrate in a substrate processing chamber, comprising a data collecting assembly for acquiring training data related to a substrate disposed in a processing chamber, an electromagnetic radiation source, at least one in-situ metrology module to provide measurement data, and a computer, wherein the computer includes a neural network software, wherein the neural network software is adapted to model a relationship between the plurality of the training and other data related to substrate processing.
摘要:
A method for automatic determination of a state of a substrate in a plasma processing chamber is provided. Substrate reflectance data is collected in a processing chamber prior to processing to be analyzed with reference reflectance data to determine if the substrate state meets a control criterion. The substrate state may define the thickness and the qualities of the films on the substrate, the critical dimensions of the different layers on the substrate. The reflectance data is analyzed using a multi-variant analysis technique, such as principle component analysis. In addition to analyzing substrate state prior to processing, substrate reflectance could also be collected in a processing chamber during processing to be analyzed with reference reflectance data to further determine if the substrate state and/or the substrate processing are meeting a control criterion.
摘要:
A method and apparatus for obtaining in-situ data of a substrate in a semiconductor substrate processing chamber is provided. The apparatus includes an optics assembly for acquiring data regarding a substrate and an actuator assembly adapted to laterally move the optics assembly in two dimensions relative to the substrate.
摘要:
A method and apparatus for obtaining in-situ data of a substrate in a semiconductor substrate processing chamber is provided. The apparatus includes an optics assembly for acquiring data regarding a substrate and an actuator assembly adapted to laterally move the optics assembly in two dimensions relative to the substrate.
摘要:
A method and apparatus for obtaining in-situ data of a substrate in a semiconductor substrate processing chamber is provided. The apparatus includes an optics assembly for acquiring data regarding a substrate and an actuator assembly adapted to laterally move the optics assembly in two dimensions relative to the substrate.
摘要:
A method and apparatus for automatic determination of semiconductor plasma chamber matching a source of fault are provided. Correlated plasma attributes are measured for process used for calibration both in a chamber under study and in a reference chamber. Principal component analysis then is performed on the measured correlated attributes so as to generate steady principle components and transitional principle components; and these principal components are compared to reference principal components associated with a reference chamber. The process used for calibration includes a regular plasma process followed by a process perturbation of one process parameter. Similar process perturbation runs are conducted several times to include different perturbation parameters. By performing inner products of the principle components of chamber under study and the reference chamber, matching scores can be reached. Automatic chamber matching can be determined by comparing these scores with preset control limits. The potential source(s) of chamber fault can also be identified by the lowest matching score(s).
摘要:
A method for controlling a process for fabricating integrated devices on a substrate. The method includes ex-situ and in-situ measurements of pre-etch and post-etch dimensions for structures formed on the substrate and uses the results of the measurements to adjust process recipes and to control the operational status of etch and external substrate processing equipment. In one exemplary application, the method is used during a multi-pass process for fabricating a capacitive structure of a trench capacitor.
摘要:
A method and apparatus for automatic determination of semiconductor plasma chamber matching a source of fault are provided. Correlated plasma attributes are measured for process used for calibration both in a chamber under study and in a reference chamber. Principal component analysis then is performed on the measured correlated attributes so as to generate steady principle components and transitional principle components; and these principal components are compared to reference principal components associated with a reference chamber. The process used for calibration includes a regular plasma process followed by a process perturbation of one process parameter. Similar process perturbation runs are conducted several times to include different perturbation parameters. By performing inner products of the principle components of chamber under study and the reference chamber, matching scores can be reached. Automatic chamber matching can be determined by comparing these scores with preset control limits. The potential source(s) of chamber fault can also be identified by the lowest matching score(s).
摘要:
The embodiments herein provide a fireproof barrier shield comprising the panels combined together to form a fireproof blanket placed on the building structure to protect the structure from flying embers, radiant heat and fire accidents. The panel comprises an inner heat retardant layer an outer heat reflective layer secured together using a heat resistant adhesive glue or thread. Each panel has several slots for receiving a fastener for combining the panels. The straps comprising a buckle and a belt are provided for securing the fireproof blanket to the ground using screw type anchors or stakes. The buckle is made of heat conductive material and the strap is made of fireproof threads. The perforated channels with brass or aluminum hose fittings are sewn to the inner layer to allow the water flow. The shield comprises a third layer arranged as an outer layer or an inner layer.