Patent Document ID: 9002492
Application ID: 13027072
Patent Flag: 1

Claim One:
1. A computer implemented method including a processor and memory comprising: identifying a plurality of predictive algorithms; identifying an error switching threshold that is based on a comparison of predictions of metrology data and actual metrology data; determining when to invoke a first adaptive predictive algorithm, a second adaptive predictive algorithm, or both first and second adaptive predictive algorithms to predict one or more virtual metrology variables in a manufacturing facility based on the error switching threshold; invoking the first adaptive predictive algorithm for updating a first component vector that is a zero'th order term of a virtual metrology prediction equation if an error is greater than the error switching threshold; and subsequently invoking the second adaptive predictive algorithm for updating the first component vector and a second component vector that represents a matrix of the virtual metrology prediction equation, wherein the first adaptive predictive algorithm is different than the second adaptive predictive algorithm, wherein the virtual metrology prediction equation includes a predicted output that is based on an input factor, the first component vector, and the second component vector.