System to monitor a consumable part and method to monitor performance life and predict maintenance thereof
First Claim
1. A system for monitoring a lifetime of a consumable part of a piece of equipment, the system comprising:
- a totalizing unit to accumulate an amount of time spent at each of a plurality of temperature operating ranges of the piece of equipment; and
a measuring unit to measure a temperature of the consumable part and in operable communication to the totalizing unit,wherein a temperature operating range is divided into a plurality of temperature subranges,wherein the totalizing unit accumulates an amount of time the consumable part is at a temperature within each temperature subrange, andwherein the consumable part includes a heating element, a thermocouple or a quartz tube.
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Accused Products
Abstract
A method for determining a maintenance interval for a consumable part and/or for equipment containing a consumable part obtains a plurality of measurements of temperature of the consumable part, receives each of the measurements at a totalizing unit, correlates each of the measurements to one of a plurality of temperature subranges, accumulates for each of the subranges an amount of time the measurements of temperature were correlated to each of the subranges, determines a total time by aggregating the accumulated time for each subrange with a weighting function, and generates a signal to prompt a maintenance event when the total time equals or passes a runtime setpoint. In supplement to or in alternative to the above, the method also correlates a subrange of two sequential measurements, indexes a breakpoint register if the correlated subranges are different, and generates a signal to prompt a maintenance event when a value of the breakpoint register equals or passes a breakpoint setpoint. A system for collecting, storing, and displaying runtime data of a resistive heating element in a semiconductor processing unit is also disclosed.
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Citations
28 Claims
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1. A system for monitoring a lifetime of a consumable part of a piece of equipment, the system comprising:
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a totalizing unit to accumulate an amount of time spent at each of a plurality of temperature operating ranges of the piece of equipment; and a measuring unit to measure a temperature of the consumable part and in operable communication to the totalizing unit, wherein a temperature operating range is divided into a plurality of temperature subranges, wherein the totalizing unit accumulates an amount of time the consumable part is at a temperature within each temperature subrange, and wherein the consumable part includes a heating element, a thermocouple or a quartz tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for monitoring a lifetime of a consumable part of a piece of equipment, the system comprising:
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a totalizing unit to accumulate an amount of time spent at each of a plurality of temperature operating ranges of the piece of equipment; and a measuring unit in operable communication to the totalizing unit, wherein the measuring unit measures at least one of a temperature of the consumable part and a parameter correlated to temperature of the consumable part, wherein a temperature operating range is divided into a plurality of temperature subranges, wherein the totalizing unit accumulates an amount of time the consumable part is at a temperature within each temperature subrange, and wherein the consumable part includes a heating element, a thermocouple or a quartz tube. - View Dependent Claims (11)
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12. A system for collecting, storing, and displaying runtime data of a consumable part in a piece of equipment, the system comprising:
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a plurality of measuring units to measure a temperature of the consumable part or to measure a parameter correlated to temperature of the consumable part; a totalizing unit to one or more of (a) accumulate an amount of time spent at each of a plurality of temperature operating subranges based on an output from the plurality of measuring units and (b) accumulate a number of breakpoints through which the output from the plurality of measuring units has transitioned, the breakpoints separating adjacent temperature subranges; a computer network for receiving and storing at least one of the accumulated time and the accumulated number of breakpoints; and a graphical user interface for displaying and retrieving at least one of the accumulated time and the accumulated number of breakpoints, wherein the consumable part includes a heating element, a thermocouple or a quartz tube. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for determining a maintenance interval for equipment, the method comprising the steps of:
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obtaining a plurality of measurements of temperature of a consumable part or a plurality of measurements of a parameter correlated to temperature of the consumable part; receiving each of the measurements at a totalizing unit; correlating each of the measurements to one of a plurality of temperature subranges; accumulating for each of the subranges an amount of time the measurements were correlated to each of the subranges; and determining a total temperature normalized operating time for the consumable part by aggregating the accumulated time for each subrange with a weighting function, wherein a first temperature subrange is given a fractional weight relative to a second temperature subrange, the first temperature subrange being lower than the second temperature subrange, wherein the consumable part includes a heating element, a thermocouple or a quartz tube. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification