Patent ID: 9563732
Date: 2017-02-07
CPC Classifications: G06F,H05K

Claim:
1. A method of designing an organic build-up laminate comprising: substantially completing a laminate design; calculating a copper imbalance, wherein calculating the copper imbalance is based on an in-plane copper imbalance and the out of plane copper imbalance; predicting a laminate warpage based on the copper imbalance; modifying the design by adding or removing copper from select areas to reduce the copper imbalance; recalculating the copper imbalance; and predicting the laminate warpage based on the recalculated copper imbalance, wherein an in-plane copper resistance is calculated for each layer separately using the following Equation 2: then, the in-plane copper imbalance between the layer pair is calculated, using Equation 3: