12 dielectric systems
A published portfolio spanning low-dielectric, low-loss and high-strength options.
Compare the material dataOwned LTCC Material Manufacturing
Low Temperature Co-fired Ceramic Materials
An integrated material platform: dielectric powder, green tape and matching silver paste from Ningbo Empire's own LTCC manufacturing.
Match dielectric behavior, layer formation and printed conductors through one material-development and co-firing route.
Match the Material to Its Evaluation Method
Specify the material system and tape/paste combination with frequency, dielectric target, firing window and specimen requirements. Compare material values only with the corresponding measurement conditions and specimen state.
- Test frequency, specimen state and dielectric measurement method
- CTE, strength, firing and shrinkage requirements
- Tape format, conductor system and matching document revision
Three materials. One matched platform.
Dielectric Powder
Composition defines the dielectric material system selected for the design.
Green Tape
Unfired tape provides the layers for circuit printing, stacking and lamination.
Silver Electrode Paste
Matching paste forms printed conductors within the co-fired material system.
Ceramic layers + printed conductors
Multilayer Co-firing
Materials are evaluated together through stacking and firing. Process principle, not a device specification.
The platform behind the materials
Materials developed to work together.
Material synthesis, tape casting and heterogeneous co-firing are developed as one route, so evaluation can address both material properties and processing compatibility.
Nearly 1,000 m² of cleanroom space
Class 10,000 space supports automated tape casting and multilayer process development.
See the evaluation capabilitiesFrom formulation to co-firing
Powder characterization, green-tape development and matching-paste evaluation connect to multilayer process verification.
Discuss a material combinationA joint advanced functional ceramic materials and components R&D center supports specialist material and process development.
Material-platform scale
Published platform capacities are not a production allocation. Tape format, material system and project availability are confirmed during evaluation.
For Non-specialists
What Does LTCC Mean?
LTCC stands for Low Temperature Co-fired Ceramic. It is a material and manufacturing platform used to build compact multilayer electronic structures by printing conductors and circuit features on unfired ceramic tape, stacking the layers and firing them together.
The technology enables integration from material and circuit to package and system, supporting smaller, more integrated and modular electronic products.
Where It Is Used
- ✓RF front ends — low-loss dielectric systems for high-frequency circuits
- ✓Automotive electronics — stable ceramic material platforms for demanding modules
- ✓High-density packaging — multilayer interconnection and functional integration
- ✓Ceramic microsystems — compact three-dimensional ceramic structures
Owned Material Portfolio
12 LTCC Dielectric Material Systems
Lead- and cadmium-free material options designed for co-firing with matching silver electrode paste. Final values are confirmed against the applicable product datasheet and test method.
Frequency is included with the dielectric-constant value. Loss, strength and firing values remain as published; request the relevant test method and specimen conditions before comparing systems or releasing a design.
All published grades are available below. Filter by series or grade name, then select up to four entries to compare. Final selection requires review of the complete operating conditions.
Scroll to view more columns.
| Grade | Positioning | Dielectric Constant | Loss | CTE ppm/°C | Flexural MPa | Firing °C |
|---|---|---|---|---|---|---|
| L3B9 | Ultra-low Dk, high-frequency low loss | 3.9 ±0.1 (10–40 GHz) | ≤0.002 | 2.3 | >100 | 875 |
| L4D4 | Low Dk, high-frequency low loss | 4.4 ±0.1 (8–40 GHz) | ≤0.002 | 4.1 | >125 | 850 |
| L4A9 | Low Dk, high-frequency low loss | 4.8 ±0.1 (@12 GHz) | ≤0.002 | 4.5 | >150 | 850 |
| L4C9 | Low dielectric constant | 4.85 ±0.1 (@12 GHz) | ≤0.0035 | 4.5 | >150 | 850 |
| L5A9 | Low Dk, high-frequency low loss | 5.9 ±0.1 (10–40 GHz) | ≤0.002 | 5.3 | >170 | 875 |
| L7HW | High strength | 7.0 ±0.1 (@10 GHz) | ≤0.0025 | 6.0 | >300 | 850 |
| L7H4 | High strength | 7.4 ±0.1 (@10 GHz) | ≤0.003 | 6.1 | >300 | 850 |
| L7BT | High CTE, high-frequency low loss | 7.7 ±0.2 (10–40 GHz) | ≤0.001 | 12.5 | >200 | 900 |
| L7H8 | High strength | 7.8 ±0.1 (@10 GHz) | ≤0.0025 | 6.3 | >300 | 875 |
| L15A0 | Mid-Dk, low loss | 15.0 ±0.5 (@10 GHz) | ≤0.001 | 9.6 | >150 | 900 |
| L25A0 | Mid-Dk, ultra-low loss | 26.0 ±0.5 (@10 GHz) | ≤0.00025 | 9.2 | >200 | 900 |
| L40C0 | Medium-high Dk, low loss | 38.5 ±1 (@10 GHz) | ≤0.0006 | 7.9 | >200 | 900 |
Dielectric properties are frequency-dependent. Custom dielectric ceramic material development is available for qualified projects.
Material characterization
From material properties to process behavior
Composition, particle size, structure and processing behavior are assessed with complementary methods.
Composition Analysis
XRF analysis supports review of material composition.
Particle Size
Laser analysis characterizes the powder particle-size distribution.
Surface Area
Surface-area measurement supports powder characterization.
Crystal Structure
X-ray diffraction supports crystalline-phase analysis.
Optical Inspection
3D microscopy supports surface and dimensional review.
Slurry Behavior
Rheology testing supports review of slurry processing behavior.
Thermal Response
Thermomechanical analysis supports material characterization with temperature.
Material Development
Specialist material and process work connects formulation with evaluation.
RFQ Preparation
What to Send for Material Evaluation
- ✓Target dielectric constant, loss and test frequency
- ✓Required CTE, flexural strength and firing window
- ✓Green-tape format, thickness and annual demand
- ✓Electrode system and co-firing process requirements
- ✓Application, reliability test and environmental requirements
Supply Scope
| Dielectric material | LTCC powder and green tape |
|---|---|
| Metallization | Matching silver electrode paste |
| Development | Custom dielectric formulations by project |
| Validation | Application and multilayer process verification |
| Compliance | RoHS-oriented, lead- and cadmium-free material options |
Evaluate an LTCC Material System
Send the dielectric target, operating frequency, tape format, electrode system and annual demand for technical review and factory-direct pricing.