Piper Companies is seeking a Senior Substrate Layout Designer who will be responsible for leading the design of advanced multi-die substrate packages. The layout designer will be onsite 5 days a week in Saratoga, CA. Responsibilities for the Substrate Layout Designer include: -Lead the end-to-end physical layout of high-density, multi-die substrate design. -Design and optimize bump maps, breakout routing, via structures, and layer stack-ups. -Collaborate with ASIC, signal integrity, and power teams to ensure clean escape routing and breakout strategies -Evaluate routing feasibility in co-design environments, considering die floorplans and mechanical constraints. -Drive DRC, DFM, and manufacturing rule checks to ensure fabrication readiness -Interface with substrate vendors and OSATs for tape-out and manufacturability validation. -Conduct technical reviews and iterate on layout improvements with internal and external stakeholders Requirements for the Substrate Layout Designer include: -8+ years of experience in substrate layout design for high-performance IC packaging -Proven experience expertise in organic substrate design from silicon to BGA -Deep understanding of chiplet-based, multi-die, and advanced packaging (FPGA, CPU, CPU, MCM, CoWoS) -Strong collaboration skills with ASIC, signal, and power teams -Proficiency in Cadence Allegro APD and AutoCAD -Experience working with OSATs and substrate supplies -Bachelor’s degree in Electrical Engineering or equivalent experience. Compensation for the Substrate Layout Designer includes: -Salary range: $, - $, -Comprehensive benefits: Medical, Dental, Vision, k, PTO, holidays, and sick leave as required by law. Keywords: Substrate layout, substrate, package substrate design, multi-die packaging, chiplet integration, CoWoS, MCM, BGA, FPGA, CPU, GPU, High-density interconnect, escape routing, signal integrity, power integrity, organic substrate, substrate tape-out, substrate DRC, cadence allegro APD, autocad, cadence SiP layout, EDA tools, Layout verification tools, ASIC, OSAT, mechanical co-design, floorplanning, design reviews #LI-BH1 #LI-ONSITE This job is open for applications on 7/3/5. Applications for this job will be accepted for at least days from the posting date.