摘要:
A new method is provided for the processing of metals, most notably copper, such that damage to exposed surfaces of these metals is prevented. During a step of semiconductor processing, which results in exposing a metal surface to a wet substance having a pH value, a voltage is applied to the metal that is exposed. The value of the applied voltage can, dependent on the value of the pH constant of the wet substance, be selected such that the exposed metal surface is protected against alkaline effects of the wet substance.
摘要:
A new method is provided for the processing of metals, most notably copper, such that damage to exposed surfaces of these metals is prevented. During a step of semiconductor processing, which results in exposing a metal surface to a wet substance having a pH value, a voltage is applied to the metal that is exposed. The value of the applied voltage can, dependent on the value of the pH constant of the wet substance, be selected such that the exposed metal surface is protected against alkaline effects of the wet substance.
摘要:
A method for removing dry film resist (DFR) from a fine pitch solder bump array on a semiconductor wafer provides for pre-soaking the wafer in a chemical bath then turbulently exposing the wafer to a chemical solution, both steps taking place in batch processing with the wafers processed in a vertical position. The wafers are then individually processed through a chemical spinning operation in which a chemical solution is dispensed from a spray nozzle while motion such as spinning is imparted the horizontally disposed wafer. The spin speed of the chemical spraying process may then be increased to accelerate physical removal of residue. Deionized water rinsing and spin-drying provide a solder bump array void of any DFR or other residuals.
摘要:
A method of setting a demand threshold is provided. The method comprises: (a) a control unit arranging a plurality of demand data in a descending or an ascending order as a curve; (b) the control unit connecting a maximum demand datum and a minimum demand datum with a line; and (c) the control unit setting a demand datum with a longest perpendicular distance to the line as a demand threshold.
摘要:
A new method is provided for the processing of metals, most notably copper, such that damage to exposed surfaces of these metals is prevented. During a step of semiconductor processing, which results in exposing a metal surface to a wet substance having a pH value, a voltage is applied to the metal that is exposed. The value of the applied voltage can, dependent on the value of the pH constant of the wet substance, be selected such that the exposed metal surface is protected against alkaline effects of the wet substance.
摘要:
The present invention is directed to a filler assembly for dispensing liquid to and from a container capable of storing an indicated liquid. The filler assembly has a portable part and a stationary part cooperating to provide a sealed dispensing means for communicating an indicated liquid from an indicated liquid source to a container and for safely communicating the indicated liquid from the container to another location. The portable part and the stationary part are adapted to sealably mate together and further provide means for preventing misassembly of the two parts. The portable part provides dispensing means capable of communicating the liquid from the stationary part to a remote location. The stationary part is adapted to further sealably mate and communicate with a container capable of storing an indicated liquid.
摘要:
A method of setting a demand threshold is provided. A control unit arranges a plurality of demand data in a descending or an ascending order as a curve. The control unit connects a maximum demand datum and a minimum demand datum with a line. The control unit sets a demand datum with a longest perpendicular distance to the line as a demand threshold.
摘要:
A method of predicting the level of customer amount is provided. The method at least comprises the steps of: (a) a counter counting person-time within a time period; (b) a processor checking whether a referenced customer amount of the time period is stored in a database if being at the beginning of the time period; and (c) the processor estimating the level of customer amount according to the referenced customer amount of the time period if the referenced customer amount of the time period is stored in a database.
摘要:
A Ferris wheel-like stripping or cleaning mechanism that can be used in semiconductor fabrication, such as in photoresist or other stripping, or wafer or other cleaning, is disclosed. A stripping mechanism can include a container to hold a chemical, such as a photoresist stripping chemical, a wafer cleaning chemical, or another type of chemical. The mechanism can also include a component to move semiconductor wafers through the chemical in the container in a Ferris wheel-like motion. The component may include wafer holders for the wafers that are swivably mounted about an axis of rotation. As the one or more wafer holders rotate about the axis of rotation through the chemical in the container, the wafer holders remain in a substantially constant vertical and horizontal orientation.
摘要:
A wet chemical treatment system for processing semiconductor wafers that does not have the problem of cracking or other damages occurring in the system during a cleaning process where a strong acid and water are mixed and pressure and heat are generated. The system includes an additional filing system such that only an outer tank for the processing liquid is filled after the system is cleaned so that pressure and heat generated by the reaction between acid and water can be released into an empty inner tank and thus avoiding damages caused by the heat and pressure. A method for cleaning such system is further disclosed.