IMS & Copper Clad
The abbreviation, IMS, stands for “Insulated Metal Substrate.” This is a PCB built on a metal plate; normally aluminium but can also be copper clad on which a special prepreg is applied, the primary qualities of which are an excellent capacity for heat dissipation and great dielectric strength against high voltages.
The advantages of IMS PCBs for heat dissipation
The advantage of an IMS PCB can be designed with a very low thermal resistance. When we compare a 1.60 mm FR4 PCB board to an IMS PCB board with a 0.15 mm thermal prepreg, the thermal resistance is more than approximately 100 times that of the FR4 PCB. This material is needed to support the lighting applications, medical and automotive industry. The different materials we use will be found in the spread sheet.
Please contact CS if you need further information or assistance, our engineers are happy to help you.
| Feature | CS Electronics Technical Specification |
|---|---|
| Number of Layers | 1 - 32 layers |
| Plated Through Holes | Max 8.0mm |
| Materials | SHENGYI, KB, LTEQ, Rogers 4003, Rogers 4350, Ventec, Bergquist |
| Copper weights | 12 oz |
| Minimum Track and Gap | 2.5/2.5 mil |
| PCB thickness | 0.2-6.5mm |
| Maximum Dimensions | 480mm*830mm |
| Surface Finishes Available | HASL (SnPb), HASL LF (SnNiCU), OSP, ENIG, Immersion Tin, Immersion Silver, Electrolytic Gold, Gold Fingers, Hard Gold and EPIG, Soft Gold |
| Minimum Mechanical Drill | 0.1mm for laser holes; 1.5mm for mechinical drilled holes |
| Stencil | with and without frame |
