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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
High-Voltage Tantalum Nitride Resistors for Implantable Medical Devices
High-voltage tantalum nitride resistors offer unmatched precision, biocompatibility, and stability for implantable medical devices.
4 min read
Glass Interposers for High-Frequency Circuits
In high-frequency electronics, every fraction of a decibel counts. Engineers designing for 5G, radar, and high-speed computing are...
3 min read
Selective Conformal Coating for High-Reliability Electronics: Quality Control Insights
Mastering Selective Conformal Coating Quality Control: Prevent Defects, Ensure Reliability, and Optimize Rework Processes. Selective...
3 min read
Revolutionizing Lithography: How AI is Optimizing Thin Film Device Fabrication
AI is transforming lithography in thin film device fabrication, making it smarter, faster, and more precise.
3 min read
A 3D-Printed Heart Valve That Heals Itself
A New Era in Heart Valve Technology – Scientists are pioneering 3D-printed bioresorbable heart valves that dissolve over time.
3 min read
Mastering Odd and Even Mode Balance in RF Couplers: The Key to Precision and Performance
Learn how Vajra Microsystems ensures precision in thin film RF couplers by mastering odd-even mode balance for superior impedance, isolation
7 min read
Why Thin Film Couplers Deliver the Best Performance-to-Cost Ratio for RF and Microwave Systems
Discover why thin film RF couplers offer the best performance-to-cost ratio with precision manufacturing, reliability, and miniaturization.
3 min read
Forging Tomorrow's Electronics: The Significance of Copper-Filled Vias
Copper-filled vias: Silent conduits of innovation, enhancing electrical performance and enabling compact, powerful electronics. 🌟
2 min read
Electromagnetic Frequencies: The Invisible Dance of Energy Waves
Imagine you have a skipping rope. When you wiggle one end up and down, it makes waves travel along the rope. Electromagnetic frequencies...
1 min read
Unleashing Potential with the Theory of Constraints (TOC)
TOC: Amplify efficiency by pinpointing and conquering constraints, propelling businesses toward peak performance. #TheoryOfConstraints
2 min read
The Art of High Mix, Low Volume Manufacturing
Diverse, precise, and adaptable—high mix, low volume manufacturing crafts uniqueness in limited quantities. Join the journey of innovation!
2 min read
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