Solving system, training method and solving method for partial differential equations of electric field of integrated circuit device

A solving system for partial differential equations of an electric field of an integrated circuit device, comprising:

• a geometric feature extraction module, configured to extract a feature of a geometric parameter of the integrated circuit device to obtain a first global geometric feature;
• an electrical feature extraction module, configured to extract a feature of an electrical parameter of the integrated circuit device to obtain a first global electrical feature;
• and a material feature extraction module, configured to extract a feature of a material property of the integrated circuit device to obtain a first global material feature;
• a fusion module, configured to fuse the first global geometric feature, the first global electrical feature, and the first global material feature to obtain a fused feature;
• an encoding module, configured to encode the fused feature to obtain an encoded feature;
• and
• a decoding module, configured to decode the encoded feature to obtain electric field distribution of the integrated circuit device,
• wherein the fusion module comprises:
• a first feature extractor, configured to perform spatial grid division on the first global geometric feature according to an integrated circuit device structure to obtain a local geometric feature of each grid unit, perform feature extraction on each local geometric feature to obtain a geometric parameter feature of each grid unit, and perform embedding processing on the geometric parameter feature of each grid unit to obtain a geometric embedding feature of each grid unit, which together constitute a second global geometric feature;
• a second feature extractor, configured to perform feature extraction on the first global electrical feature at multiple scales and perform embedding processing on an obtained feature of each scale to obtain an electrical embedding feature corresponding to each scale, which together constitute a second global electrical feature;
• a third feature extractor, comprising a fully-connected layer and configured to input a feature obtained by adding the second global geometric feature and the second global electrical feature into the fully-connected layer for feature extraction and add an extracted feature to the first global material feature to obtain a second global material feature;
• and
• a fuser, configured to treat the second global geometric feature, the second global electrical feature, and the second global material feature as a query matrix, a key matrix, and a value matrix respectively, and perform fusion based on an attention mechanism to obtain the fused feature.