This video features an interview with Nanek, a 23-year-old analog mixed-signal designer, who shares his journey and offers practical advice for aspiring engineers looking to enter the semiconductor industry. He provides a unique insight into the physical design constraints of modern FinFET technology, explaining why IP blocks cannot simply be rotated and require entirely new layouts for different chip orientations. Nanek emphasizes the importance of hands-on learning through personal projects, stressing that fundamental building blocks like current mirrors and op-amps learned on older, accessible process nodes (e.g., 130nm) are directly applicable to cutting-edge 7nm design. He recounts his experience with Tiny Tapeout, where he designed a guitar distortion pedal, highlighting that the most valuable lessons came from overcoming unexpected practical hurdles like tool errors and netlist pin-order mismatches, rather than from the initial schematic design. The interview concludes by underscoring the immense value of a tangible portfolio, suggesting that presenting a self-designed ASIC in a job interview is a powerful way to demonstrate practical skills.
A Young Analog Designer's Journey: From Fundamentals to FinFETs
0:02 The Real Learning Curve: The biggest challenge is the initial jump from no experience to designing on an older node like 130nm; the subsequent leap from 130nm to a modern 7nm process is comparatively smaller.
1:55 Why Choose Analog Design?: Nanek explains his passion for analog electronics stems from the ability to solve problems rooted in fundamental physics, contrasting it with debugging issues caused by other people's decisions in software or board-level design.
3:59 The FinFET Layout Challenge: On modern FinFET nodes, transistors are created as "fins" that must all run in the same physical direction. This means an IP block (like a memory PHY) designed for the top edge of a chip cannot be simply rotated 90 degrees for the side edge; it requires a completely new layout, which can take months of work.
10:05 Advice for Beginners: Build Stuff: The most important advice for getting into the industry is to build things. Start with simple, accessible projects like guitar pedals or synthesizers using basic components (e.g., BJTs) to understand fundamental building blocks like op-amps and current mirrors.
11:57 Layout is a Critical Skill: Aspiring designers must learn layout. Understanding the physical implementation of a circuit is crucial even for schematic designers to avoid creating designs that are impossible to realize. Open-source tools like Magic and projects like Tiny Tapeout make this skill more accessible than ever.
15:31 Learning from Unexpected Problems: While designing a guitar distortion pedal for Tiny Tapeout, Nanek found the schematic design straightforward. The real learning came from debugging unexpected issues, such as DRC errors, incorrect file exports, and a two-day problem where his extracted netlist had a different pin order than the schematic, causing the op-amp to fail in simulation.
20:55 Older Process Nodes are Still Relevant: Skills learned on older, open-source nodes like 130nm are directly transferable to modern processes. Researchers and engineers frequently reference designs and papers based on these nodes to solve problems on advanced FinFETs.
23:06 Make an Impact in Interviews: Showing up to an interview with a tangible project, like a PCB with an ASIC you designed and taped out, is hugely impactful. A public repository with your design files allows interviewers to see your layout skills directly, which can be more valuable than answering traditional technical questions.