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MAY 2025 I DESIGN007 MAGAZINE 55 ing the trace size in this case falls to your manufacturer. ey can vary trace width, height, and thickness to ensure the correct impedance, but they cannot read minds. Oen, manufacturers will be uncertain as to what type of product the board will be used in or if there are underlying reasons why trace size is as critical as the defined impedance. Speaking on behalf of manufacturers, we prefer it when the design shows us what the trace sizes should be, versus work- ing backward from the impedance- related notes. When you design for controlled impedance, the documentation no longer acts as tea leaves for the man- ufacturer to guess at. ey know you made the effort to get in range, and they have a clear target. If you design your board to hit the exact imped- ance number that would otherwise be called out in the documentation, you should be within the manufac- turer's tolerance range. We recognize that testing is impor- tant, such as when there are high- performance or special materials are required. Tests are far more enjoyable when you already know the answers to the questions. When you integrate impedance math into your design process, you get quality boards faster and more efficiently. DESIGN007 Matt Stevenson is vice president and general manager of ASC Sunstone Circuits. To read past columns, click here. Read Matt's book, The Printed Circuit Designer's Guide to … Designing for Real- ity and listen to his podcast series here. by Tom Yang To succeed, we must find ways to work together. In an era of interconnected markets, heightened social aware- ness, and increasing corporate accountability, global citi- zenship is a powerful differentiator for businesses. No longer is success solely defined by revenue growth. The perception of a company's ethics, sustainability initiatives, and inclusivity practices significantly influences its market position. Organizations that embrace global citizenship principles enhance their brand image, build stronger con- sumer relationships, attract top-tier talent, and establish a foundation for long-term success. The Benefits of a Global Citizenship Approach in Brand Perception Brands that care about global issues, including environ- mental sustainability, social equity, and ethical business practices, attract consumers. Companies that engage in global citizenship initiatives position themselves as responsible market leaders. This elevates brand percep- tion, making the business more appealing to socially con- scious customers who prioritize values-aligned purchas- ing decisions. For example, Patagonia and Ben & Jerry's have woven social responsibility into their corporate DNA, proving that ethical business practices lead to stronger brand loyalty and increased profitability. How Ethical Practices Attract Diverse Talent Global citizenship commitment strongly influences an organization's ability to attract and retain top-tier tal- ent. Employees (particularly millennials and Gen Z), seek employers whose values align with their own. Companies that integrate ethical labor practices, sustainability efforts, and inclusivity are more likely to attract skilled profession- als motivated by more than just a paycheck. Continue reading Global Citizenship here. Understanding Global Citizenship as a Competitive Advantage