Patent ID: 7920938

Claim:
Method for monitoring a manufacture of an object, said object having a first material layer and a second material layer lying on top of the first material layer, comprising the following steps: determining a height profile of the first material layer after applying the first material layer on a layer carrier; comparing the height profile of the first material layer to a reference information; in case that in the comparison step a first result is obtained indicating an intact application of the first layer, supplying release information, by which a release of the application of the second material layer onto the first material layer can be prompted; in case that in the comparison step a second result is obtained indicating a faulty application of the first material layer, taking an error action; the reference information comprises a desired height profile and the comparison effects the first result when the height profile deviates from the desired height profile by less than a predetermined tolerance threshold, and wherein the comparison otherwise obtains the second result; when the first result has been obtained in the comparison step, the method includes performing an update step whereby a new desired height profile is formed as the reference information from a linear combination of the desired height profile and a desired thickness profile describing an ideal thickness course of the second material layer; wherein the determination of a height profile of the second material layer after applying the second material layer on the first material layer; and wherein the height profile of the applied second material layer is compared with the new desired height profile and, in case that in this comparison step a result is obtained indicating a faulty application of the second material layer, taking an error action.