High-Power Electronic Devices Alumina Ceramic Substrates With Heat Dissipation And Superior Insulation

High-Power Electronic Devices Alumina Ceramic Substrates with Heat Dissipation and Superior Insulation

Product Introduction

Our alumina ceramic insulation heat sink substrates are manufactured from 99.6% high-purity alumina material, specifically engineered for thermal management and electrical insulation requirements in high-power electronic devices. Featuring excellent thermal conductivity (24-30W/(m·K)) and ultra-high insulation strength (>15kV/mm), with precision-polished surfaces achieving roughness below Ra 0.1μm, these substrates represent the ideal solution for high-temperature, high-power applications including power semiconductors, LEDs, and IGBT modules.

Primary Applications

• Power Electronics: IGBT modules, MOSFETs, thyristor heat sinks

• LED Lighting: High-power LED chip packaging substrates

• New Energy Vehicles: Motor controllers, charging pile power modules

• 5G Communications: Base station power amplifier heat sinks

• Industrial Control: Frequency converters, servo drive power units

Key Advantages

⚡ Efficient Heat Dissipation: Thermal conductivity up to 30W/(m·K), 10× better than standard PCBs
⚡ Superior Insulation: Breakdown voltage >15kV/mm, volume resistivity >10¹⁴Ω·cm
⚡ High-Temperature Resistance: Continuous operation up to 850°C
⚡ Dimensional Stability: CTE 7.2×10⁻⁶/℃, excellent match with chips
⚡ Precision Machining: Flatness ≤0.02mm/50mm, laser-cuttable

Technical Specifications

Precision Manufacturing Process

1. Powder Preparation: High-purity alumina powder (D50≤0.8μm)

2. Tape Casting: Precise slurry viscosity and thickness control

3. Isostatic Pressing: 200MPa high-pressure densification

4. Atmosphere Sintering: 1650°C hydrogen-protected sintering

5. Precision Machining: Double-side grinding + laser cutting

6. Surface Treatment: CMP polishing to Ra 0.1μm

7. Full Inspection: AOI + insulation testing

Installation Guidelines

⚠ Professional Recommendations:

• Soldering temperature <280°C, duration <10 seconds

• Apply thermal grease to enhance thermal contact

• Avoid mechanical impact and localized stress concentration

• Storage humidity <60% RH

• Recommend regular insulation checks (every 5,000 hours)

Service Commitment

• Technical Support: Thermal simulation analysis services

• Rapid Response: 48-hour expedited delivery for standard sizes

• Customization: Special shapes and metallization treatments available

• Failure Analysis: SEM+EDS testing laboratory equipped

Technical FAQ

Q: How to select proper substrate thickness?
A: 0.63mm recommended for general power devices, ≥1.0mm for high-power applications

Q: Is double-side metallization possible?
A: Supports thick-film printing, thin-film sputtering, DBC and other metallization processes

Q: How to ensure reliability in vibration environments?
A: Recommend our patented edge reinforcement structure design

We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics.

Deyu Precision Ceramics Technology Co., Ltd. has many years of experience in producing special precision ceramics, and has the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. At present, the company has production and processing equipment such as dry press, isostatic press, experimental furnace, flat kiln, machining center, surface grinder, universal internal and external grinder, centerless grinder and laser cutting machine, as well as complete high-precision testing equipment such as high-precision projector, three-dimensional tester, metallographic microscope, hardness tester and densitometer.

With advanced production technology and complete production facilities, the company is one of the few domestic enterprises that can produce special precision ceramic structural parts and functional parts with machining accuracy less than 2 microns, and has strong core competitiveness in the same industry in China.

Advantages of the company: 1. National new technology enterprises; 2. The company has a municipal R&D center; 3. Cooperation with domestic key universities and research institutes; 4. Design, molding, sintering and precision processing; 5. The products cover alumina, zirconia, silicon nitride, silicon carbide and other precision ceramics; 6. Precision plus technology.

The company has always been standing in the position of customers to solve problems, focusing on the principle of quality and delivery time, adhering to the business philosophy of "integrity, innovation and reassurance", and sincerely looking forward to cooperating with you.