| 摘要 |
Printed circuit boards are manufactured by forming a composite layer using a control system which models a production process to generate data using non-linear compensation techniques to compensate for non-linear distortion occurring in a circuit layout applied to a constituent layer. Measurement data of actual circuit layouts is used to update stored values of parameters used in the modelling process. In one form of the model, the desired layout in the composite layer is represented by an array of cells and cell sizes corresponding to an initial stage of the production process are calculated, the model working backwards from the final state of the production process to the initial state, and a finite element model used to determine corresponding positions of cells, taking account of interaction between cells, from which the compensation data is calculated.
|
