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Notes | Thoughts, Lessons & Insights from Field
Take a simple idea and take it seriously
Advancements in Ultrasound Imaging: Exploring Transducer Materials and Probe Construction
Ultrasound imaging has revolutionized modern medicine with its non-invasive, cost-effective capabilities for diagnosing and monitoring.
3 min read
Improving Signal Integrity in RF Systems with Precision Power Dividers
Precision power dividers boost RF signal integrity—reducing loss, improving isolation, and ensuring phase balance for radar, 5G, and more.
4 min read
DFX: Designs That Work in the Real World
Don’t Just Design. Design for Reality. A design isn’t just a drawing or a simulation—it’s a promise . A promise that the device will...
3 min read


A Tale of Two Vias: Filled vs Plated in Ceramic, Sapphire, Quartz & Glass
Filled vias are solid metal connections through advanced substrates like ceramic or glass—ideal for high-power, high-frequency, or mission-critical designs. Plated vias, with metal-lined walls, are simpler and cheaper but offer less conductivity and thermal performance. Choosing between them isn’t just technical—it’s strategic. Like a strong foundation, filled vias offer depth and reliability when your design truly demands it.
17 min read
Why Sapphire Is Emerging as the Substrate of Choice for Implantable RF Devices
Sapphire is redefining what’s possible in implantable RF devices. Unlike traditional materials like titanium, alumina, glass, or polymers, synthetic sapphire offers unmatched RF transparency, biocompatibility, hermetic sealing, and mechanical durability. It enables smaller, smarter, and longer-lasting medical implants with seamless wireless communication—making it the material of choice for the next generation of connected healthcare.
10 min read
Photosensitive Polyimides in RF Microsystem Design
Photosensitive polyimides (PSPIs) are transforming RF microsystem design by enabling high-frequency performance, compact layouts, and simplified manufacturing. With their low dielectric constant, excellent thermal stability, and UV-patternable nature, PSPIs are ideal for RF filters, interconnects, and advanced packaging. As systems push into 6G and terahertz domains, PSPIs are proving to be an invisible yet indispensable design advantage.
3 min read
Crosstalk & Parasitic Effects in High-Frequency Thin-Film Circuits
At GHz speeds, even the cleanest schematic can fall apart if the layout isn’t field-aware. In thin-film circuits, every trace radiates, every gap couples, and parasitic effects can quietly sabotage performance. This guide breaks down what causes crosstalk and parasitics, why thin-film designs are especially vulnerable, and five proven strategies to stop them—before they cost you compliance, yield, or time.
3 min read
How Aluminum Nitride Works: The Science Behind Its Superpowers
Aluminum Nitride cools like metal, insulates like rubber, and enables high-frequency RF—thanks to its crystal structure and phonons.
3 min read
From Sputter to Signal: The Precision Engineering Behind Thin Film Filters
Learn how thin film filters power RF systems with atomic precision—from substrates to ALD, photolithography, and advanced materials.
3 min read
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