1. A method of block binder extraction and its application to block placement of an integrated circuit, the method comprising: automatically extracting the block binders before block placement based on an algorithm that analyzes a net-list of the integrated circuit; packing a plurality of blocks relative to one another to form a configuration of the block binder before block placement; and transforming the block binders by switching to alternative configurations of the block binders to better fit into available placement space during placement of the integrated circuit, wherein the block binder extraction is performed before block placement begins.