Diamond-copper composite material with high thermal conductivity COS series device package
Diamond copper composite material is composed of diamond and copper. It has the characteristics of high thermal conductivity and matching coefficient of thermal expansion with Si. It is very suitable for the packaging field of optoelectronic products with high thermal conductivity requirements, and can replace the currently widely used Cu/W, Al/SiC and other materials.

Features
- High thermal conductivity, thermal conductivity > 450 W/K
- The thermal expansion number is well matched with Si, GaAs and GaN
- The density is relatively small, only 5.6-6.8 g/CML 3
- The surface is smooth and clean, and the surface roughness is < 0.4 μm
- It can be adjusted according to the customer's needs to adjust the gold and rigid stone content to achieve different properties
- The surface is easy to be plated with nickel and gold


Technical Parameters
Brand | Diamond content Vol.% | Thermal conductivity W/MK | Coefficient of thermal expansion 10-6/K | Flexural strength MPa |
D40Cu60 | 40 | 450 | 7.5 | 300 |
D50Cu50 | 50 | 500 | 6.8 | 250 |
D60Cu40 | 60 | 600 | 6.0 | 200 |
Applications
1. Optical communication product packaging
2. COS tie piece sealing
3. T/R component packaging
4. Other heat sink


Our services
1. Factory direct manufacture and sell.
2. Fast, accurate quotes.
3. Reply to you within 24 working hours.
4. ODM: Customized design is avaliable.
5. Speed and precious delivery.
FAQ