Passive Components Blog
No Result
View All Result
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Power Inductors Future: Minimal Losses and Compact Designs

    Bourns Unveils Automotive 3 Watt Gate Driver Transformer

    Murata Opens EMC Test Lab in Nuremberg to Enhance Automotive Support

    Percolation Phenomenon: Degradation of Molded Power Inductors in DC/DC Converters

    Molex Acquires Smiths Interconnect

    Murata Integrates Component Models into Cadence EDA Tools

    Wk 42 Electronics Supply Chain Digest

    Stackpole Introduces Automotive Thick Film Wide Termination Chip Resistors

    September 2025 ECIA US Components Sales Sentiment Continues in Optimism

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Power Inductors Future: Minimal Losses and Compact Designs

    Percolation Phenomenon: Degradation of Molded Power Inductors in DC/DC Converters

    Connector PCB Design Challenges

    Efficient Power Converters: Duty Cycle vs Conduction Losses

    Ripple Steering in Coupled Inductors: SEPIC Case

    SEPIC Converter with Coupled and Uncoupled Inductors

    Coupled Inductors in SEPIC versus Flyback Converters

    Non-Linear MLCC Class II Capacitor Measurements Challenges

    Percolation Phenomenon and Reliability of Molded Power Inductors in DC/DC converters

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • PCNS
    • PCNS 2025
    • PCNS 2023
    • PCNS 2021
    • PCNS 2019
    • PCNS 2017
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Power Inductors Future: Minimal Losses and Compact Designs

    Bourns Unveils Automotive 3 Watt Gate Driver Transformer

    Murata Opens EMC Test Lab in Nuremberg to Enhance Automotive Support

    Percolation Phenomenon: Degradation of Molded Power Inductors in DC/DC Converters

    Molex Acquires Smiths Interconnect

    Murata Integrates Component Models into Cadence EDA Tools

    Wk 42 Electronics Supply Chain Digest

    Stackpole Introduces Automotive Thick Film Wide Termination Chip Resistors

    September 2025 ECIA US Components Sales Sentiment Continues in Optimism

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Power Inductors Future: Minimal Losses and Compact Designs

    Percolation Phenomenon: Degradation of Molded Power Inductors in DC/DC Converters

    Connector PCB Design Challenges

    Efficient Power Converters: Duty Cycle vs Conduction Losses

    Ripple Steering in Coupled Inductors: SEPIC Case

    SEPIC Converter with Coupled and Uncoupled Inductors

    Coupled Inductors in SEPIC versus Flyback Converters

    Non-Linear MLCC Class II Capacitor Measurements Challenges

    Percolation Phenomenon and Reliability of Molded Power Inductors in DC/DC converters

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • PCNS
    • PCNS 2025
    • PCNS 2023
    • PCNS 2021
    • PCNS 2019
    • PCNS 2017
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Unruly material tamed for on-chip tuning capacitors

29.9.2016
Reading Time: 2 mins read
A A

source: Electronics Weekly article

Barium strontium titanate (BST) has been deposited on-die to produce tuning capacitors. Previously, the high-k dielectric has always been too lossy to be of use, according to researchers at University of California, Santa Barbara.

RelatedPosts

Power Inductors Future: Minimal Losses and Compact Designs

Bourns Unveils Automotive 3 Watt Gate Driver Transformer

Murata Opens EMC Test Lab in Nuremberg to Enhance Automotive Support

“The catch is that the deposition of complex oxides, such as barium strontium titanate, is problematic because of the high temperatures and oxygen-rich environment involved,” said the University. “The team’s work clarifies that early work within the field that reported disappointing performances of BST-based devices was limited primarily by deposition and processing methods – not by intrinsic limitations of the underlying material itself.”

What made deposition of BST with low dielectric loss possible was a hybrid form of molecular beam epitaxy that uses metal organic precursors.

Another key discovery was that some chemicals commonly used in photolithography contaminate BST, possibly contributing to earlier quality problems, so some changes in fabrication process were required.

Also, the material’s large dielectric constants “present fabrication challenges because the inherently high capacitance density of the films requires smaller electrode dimensions and finer lithography than many typical integrated capacitor structures,” said Professor Robert York of UCSB. “Low-loss reactive devices also pose significant measurement challenges at microwave frequencies. The close collaboration of materials scientists and electrical engineers, and years of experience in device processing, was integral to the success of our work.”

He sees BST capacitors being used to create tunable antennas for cellular communications, or to create phase-shifters (see featured photo) for phased-array antennas in mobile satellite communications.

York also pointed out that some barium strontium titanate devices are already used for commercial RF electronics, and the infrastructure for deposition and fabrication already exists within semiconductor foundries.

Next the team intends to demonstrate ICs with films deposited directly on metal electrodes.

The work is published as’(Ba,Sr)TiO3 tunable capacitors with RF commutation quality factors exceeding 6000‘ in Applied Physics Letters.

Related

Recent Posts

Murata Integrates Component Models into Cadence EDA Tools

21.10.2025
24

High Energy Density Polymer Film Capacitors via Molecular and Interfacial Design

15.10.2025
25

KYOCERA AVX Expands Stacked MLCC Capacitors Offering

14.10.2025
41

Murata and QuantumScape Joint Development for Solid Batteries Ceramic Separators

14.10.2025
29

Silicon Capacitors Market: Shaping the Foundation for Next-Gen Miniaturization Electronics

10.10.2025
69

Enhancing Energy Density in Nanocomposite Dielectric Capacitors

9.10.2025
40

Advances in the Environmental Performance of Polymer Capacitors

8.10.2025
67

Vishay Releases DLA Tantalum Polymer Capacitors for Military and Aerospace

8.10.2025
33

Paumanok Releases Capacitor Foils Market Report 2025-2030

7.10.2025
30

Modelithics Welcomes CapV as a Sponsoring MVP

7.10.2025
5

Upcoming Events

Oct 20
October 20 - October 23

Digital WE Days 2025 – Virtual Conference

Oct 21
October 21 @ 12:00 - October 23 @ 14:15 EDT

Space and Military Standards for Hybrids and RF Microwave Modules

Oct 28
8:00 - 15:00 CET

Power Up Your Design: SN6507 and the Ready-to-Use Development Kit

View Calendar

Popular Posts

  • Buck Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Boost Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Flyback Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • LLC Resonant Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • What is a Dielectric Constant and DF of Plastic Materials?

    4 shares
    Share 4 Tweet 0
  • SEPIC Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Dual Active Bridge (DAB) Topology

    0 shares
    Share 0 Tweet 0
  • MLCC and Ceramic Capacitors

    0 shares
    Share 0 Tweet 0
  • Flying Capacitors

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Passive Components Blog

© EPCI - Leading Passive Components Educational and Information Site

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

No Result
View All Result
  • Home
  • Knowledge Blog
  • PCNS

© EPCI - Leading Passive Components Educational and Information Site

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.
Go to mobile version