BACKING PLATES

Backing Plates for Sputtering Targets
 

Sputtering is a core thin film deposition method in which argon ions are energized within a high voltage cathode anode region, creating a dense plasma. These ions bombard the sputtering target surface, ejecting atoms that deposit onto a substrate as a uniform thin film. The process generates significant heat at the target interface, especially for low-yield materials, high-power magnetron systems, or extended deposition runs.

Efficient heat management is essential. Without proper thermal conduction, localized overheating can cause target cracking, delamination, or instability in the deposition rate. Conductive metal targets dissipate heat effectively, while semi-conductive and insulating ceramics require a mechanically robust backing plate to ensure stable operation.
 

Role of the Backing Plate

A properly engineered backing plate provides multiple critical functions:

• Thermal conduction
  Transfers heat from the target to the cathode and cooling system, preventing thermal stress and cracking.
• Mechanical support
  Maintains target integrity even if the material develops fractures during sputtering.
• Uniform bonding and minimized thickness
  Allows the target to be thinned for improved heat transfer without compromising structural stability.
• Reliable mounting
  Ensures consistent alignment and electrical performance within the sputtering system.
   

LTS Bonding and Backing Plate Capabilities

LTS Research Laboratories, Inc. supplies complete bonded target assemblies with high performance backing plates for both research and production environments. Through our advanced bonding processes, we support a wide range of target materials including metals, alloys, ceramics, and refractory compounds.

We produce custom backing plates designed around your system geometry, cooling configuration, and deposition requirements. Materials are available in multiple shapes, sizes, and CNC machined profiles.