Bonded Fin and Brazed Fin Heat Sink Assemblies

Our company provides the quality service from start to end, we have many experience in the Liquid Cold Plate with Copper Tube, Bonded Fin Heat Sinks Assemblies, Zipper Fin Heat Sink field, we listen to the client's need and find the most proper solution for it. As a high-tech enterprise integrating research and development, production and sales, we adhere to the development road of independent innovation, mastering core technology and creating brand. Our corporate management is transparent, open-minded, open and fair. Our management philosophy is to be pragmatic, innovative, hardworking, ambitious, people-oriented, growing together and sharing reasonably.

Bonded Fin Heat Sinks Assemblies

Bonded fin heat sink is made by aluminum/copper base with individual fins bonded into the grooves. Bonded fin technique is a conventional high power heat sink manufacturing technique.

We developed several bonding techniques via our own technical innovations and these include highly conductive thermal epoxy bonding, brazing, and soldering so as to greatly enhance the reliability and stability of cooling and avoid any potential risk. 

The aluminum/copper bases can be extruded, die cast, or machined. Fins are either punched from coil stock or cut from thin plate stock. The fins are inserted into the base grooves and are joined by epoxying, brazing, or soldering.

Manufacturing Process

1. A base is machined or extruded out of aluminum or copper.

2. Fins are stamped out of roll stock aluminum or copper.

3. Attachment to the base is achieved with a thermal epoxy, brazing or soldering.

Features

1. Higher aspect ratio and high fin density of fins increase cooling surface area so the heat sink with high performance.

2. Lower thermal resistance for the high power device heat dissipation.

3. Aluminum fin, copper base, aluminum base can be assembled into bonded fin assemblies.

4. Fins fabricated from sheet metal or extrusion, custom designs available, the metal plate is made of fins, which can be cut to a specific size.

5. We can customize your wings according to thermal performance requirements and packaging size height restrictions. For more complex designs, we can extrude fins to specific shapes and lengths.

6. Used for high power forced convection cooling applications.

7. Bonding resin with highly thermal conductive for minimal thermal loss.

8. Dissipate more heat than the conventional heat sinks with the same footprint.

9. Reduce heat sink and overall system volume.

10. Increase the aluminum cooling surface area by two to three times than traditional heat sink.

Manufacture black anodized bonded fin heat sinks

We don't recommed it due to the high cost. Also, the black finish doesn't contribute much to the reduction of heat in forced convection. Clear, gold chromate is often applied to protect the bonded fin heat sinks from corrosion.

Bonded Fin Heat Sinks made of aluminum and copper

We have decades of experience in bonded copper fins into aluminum base. Copper fins are assembled in combination with aluminum fins to save cost and increase thermal performance in some applications.

Application

The features of bonded fin heat sinks include more fins per inch, smaller fin gap, and flexible profile height and width so that they are suitable for different sizes of application space. This kind of heat sink is small in size and light in weight, so it is an ideal choice for cooling high power equipment. Awind bonded fin heat sink wildly applied to IGBT Devices, Welding Devices, Motor Devices, High Power Semi, Lasers System, Renewable Energy, Factory Automation, Thermoelectric Modules - TECs, Un-interruptible Power Supplies, AC Welding Switches, Power Rectification Equipment, Power Rectification Equipment, Traction Control Motor Drives.

We know that only by strict selection of materials, strict process system and starting from the smallest details can we gradually improve the finished product rate of our Bonded Fin and Brazed Fin Heat Sink Assemblies. The company focuses on staff quality awareness training, operating skills training, and comprehensive quality management. We advocate the value of teamwork and the code of conduct, emphasizing the up and down together, collaborating with each other.