Design007 Magazine

36 DESIGN007 MAGAZINE I DECEMBER 2021 Since the beginning of PCB design, physical prototypes have played a heavy role in the verification and ultimate approval of a new product for market. e challenge posed by this approach is simple—most designs require more than one prototype spin to achieve approval. A Lifecycle Insights survey 1 turned up an industry average of 2.8 respins per project at a cost of $46,000 per spin. Certainly, there are variables such as design size and complexity, number of boards in a system, bare vs. fully assembled, and target industry or application. ese all impact the cost and number of typi- cal spins. As design complexity increases, so do the unknowns; even if a team designs con- servatively, they're bound to trip over a few new spin-inducing issues. is is so common that project managers oen "bake in" three to four respins to project schedules; you could call that mitigating risk—or planning to fail. e promise of the digital transformation of the electronics design process is "zero- spin," going directly from design into volume production. is requires that every existing check performed on a physical prototype has a digital equivalent, or better yet, constraints synthesized from requirements that ensure correct-by-design. e reality today is that confidence in digital verification isn't high enough for anyone to bet the farm on zero-spin; most consider a single, fully-tested prototype pass as the holy grail. e heart of digital verification is the digital twin, a model of the design with enough fidelity to ensure that checks or simulations catch errors typically caught within the physical testing process. A model of the electronics system is hierarchically constructed of many smaller models representing the enclosure, the environment, the multiple boards, and each board's materials/stackups, components, and Leveraging Digital Twins to Optimize Electronic Systems Digital Transformation by David Wiens, SIEMENS EDA Figure 1: A strong digital twin facilitates design trade-offs and identifies problems early.

• December 2021 — Design007 Magazine
• Feature Contents — The Art and Science of PCB Design
• Additional Contents
• Flex007 Contents
• Column — The Art of PCB Design: I Know It When I See It
• Feature Interview — PCB Design: Where Art and Science Intersect
• Column — 'Dealing' With PCB Design
• Feature Article — Will AI Replace the Art of PCB Design?
• Column — The Rise of Resin in IoT Applications
• Column — Leveraging Digital Twins to Optimize Electronic Systems
• Feature Interview — Field of Dreams: The Art and Science of Designing with Field Theory
• Article — Test and Inspection
• Feature Article — The Colorful World of PCB Design
• PCB007 Highlights
• Feature Article — The Art of Using Symmetry—and Asymmetry—in PCB Design
• Column — Best Practices for Solder Mask Application
• Column — High-Performance 3D Printed Circuitry
• Feature Interview — The Art and Science of DFM
• Feature Interview — The Art and Science of PCB Design—You Are the Best Tool
• Feature Column — Creative Minds Pushing Boundaries
• MilAero007 Highlights
• Column — Live or via Zoom, Knowledge Is All Around Us
• Column — Better Electronics Start With Better Training
• Short — Navigating the Supply Chain Storm With ICAPE
• Article — RealTime with… American Standard Circuits: Thermal Management
• Feature Article — Revving Up Design
• Flex007 Column — Shaping Flexible Circuits
• Flex007 Short — Elementary, Mr. Watson: We've Never Done It That Way Before
• Flex007 Highlights
• Flex007 Column — Challenges in Simulating a Wirebonded CoB on a Rigid-Flex PCB
• Flex007 Short — Flexible, Wearable X-ray Detector Doesn't Require Heavy Metals
• PCB Design007 Top Ten Editor's Picks
• Career Opportunities section
• I-007e Educational Resource Center
• Advertiser Index and Masthead