Calibre^® 3DThermal, innovative software for thermal analysis, verification and debugging in 3D integrated circuits (3D-ICs). Calibre 3DThermal enables chip designers to rapidly model, visualize and mitigate thermal effects in their designs from early-stage chip and package-inward exploration through to design signoff by incorporating elements of Siemens’ Calibre verification software and Calibre^® 3DSTACK software along with the company’s Simcenter™ Flotherm™ software solver engine. Calibre 3DThermal provides the outputs necessary for thermal impacts to be considered in electrical simulations. Moreover, Calibre 3DThermal can both consume as input boundary conditions as well as provide output to Simcenter Flotherm – enabling true IC to system thermal modeling from IC to package to board to system level.