Product Overview
Iridium Manganese Sputtering Target (Ir/Mn) is an alloy sputtering target used to deposit composition-controlled alloy films. Relative to a pure elemental target, the alloying constituents are introduced to tune electrical, magnetic, optical, mechanical, or adhesion-related film properties. For this reason, alloy ratio, homogeneity, purity basis, and the intended film composition should be defined clearly in the procurement specification.
Material and Deposition Characteristics
Many alloy targets are electrically conductive and can be compatible with DC or pulsed-DC magnetron sputtering, subject to the actual alloy composition and equipment capability. The target composition is not always reproduced exactly in the deposited film because preferential sputtering, re-sputtering, substrate heating, and process gas conditions can shift the final ratio. For composition-sensitive work, deposited-film analysis should be part of process qualification.
Technical Data
| Parameter | Typical Value / Range | Importance |
|---|---|---|
| Purity | 99.9% – 99.99% | Ensures stable magnetic and structural properties |
| Composition | Ir/Mn customizable (e.g., 20/80 at%, IrMn₃) | Determines exchange bias behavior |
| Diameter | 25 – 300 mm (custom) | Compatible with most sputtering systems |
| Thickness | 3 – 6 mm | Influences sputtering efficiency and target lifespan |
| Density | ≥ 99% theoretical density | Improves film uniformity and sputtering stability |
| Bonding | Copper backing plate / Indium bonded | Enhances thermal conductivity and durability |
| Material | Key Advantage | Typical Application |
|---|---|---|
| Iridium Manganese (Ir/Mn) | Strong exchange bias and thermal stability | Spin valves and magnetic sensors |
| Platinum Manganese (Pt/Mn) | Good exchange bias with strong corrosion resistance | Magnetic recording heads |
| Nickel Iron (NiFe) | Soft magnetic properties | Magnetic sensing layers |
| Question | Answer |
|---|---|
| What is the primary function of Ir/Mn thin films? | Ir/Mn films act as antiferromagnetic pinning layers that create exchange bias in magnetic multilayer devices. |
| What sputtering methods are suitable for Ir/Mn targets? | Ir/Mn sputtering targets are commonly used in DC magnetron sputtering systems for magnetic thin film deposition. |
| Can the Ir/Mn composition be customized? | Yes. The iridium-to-manganese ratio can be tailored depending on the desired exchange bias properties. |
| Are bonded sputtering targets available? | Yes. Ir/Mn targets can be bonded to copper backing plates to improve heat dissipation during sputtering. |
| What industries commonly use Ir/Mn sputtering targets? | Data storage, semiconductor manufacturing, spintronics research, and magnetic sensor development. |
Typical Thin-Film Applications
- Iridium Manganese alloy films where composition control is important to electrical, mechanical, magnetic, or optical performance
- Multilayer stacks, adhesion/barrier layers, conductive films, or functional coatings depending on the alloy system
- Research and production programs that require customized alloy ratios and repeatable sputtering behavior
Target Configuration and Ordering Considerations
For quotation and manufacturability review, provide target size, thickness, purity or alloy composition, quantity, and the sputtering gun or cathode model if known. If a bonded assembly is required, include backing-plate material, bonding preference, and any dimensional tolerances, surface-finish needs, or inspection-document requirements. TFM can also review customer drawings or old-target samples for replacement builds.
Frequently Asked Questions
Can the composition of a Iridium Manganese sputtering target be customized?
Yes. For alloy targets, the required ratio should be specified clearly in wt% or at%. TFM can review custom compositions together with purity, dimensions, and manufacturability.
Will an alloy target always produce a film with the same composition?
Not necessarily. Preferential sputtering, substrate heating, process gas, and re-sputtering effects can shift the deposited composition relative to the nominal target chemistry. Film analysis should be used when the composition is critical.
Is a Iridium Manganese alloy target compatible with DC magnetron sputtering?
Many metallic alloy targets are electrically conductive and can be compatible with DC or pulsed-DC sputtering, but the final choice depends on the actual alloy system and equipment.
Why is alloy homogeneity important in a Iridium Manganese target?
A uniform alloy distribution helps support stable erosion and reduces local composition variation across the target, which in turn helps improve run-to-run consistency.
Can a Iridium Manganese target be supplied bonded?
Yes. Where the cathode or thermal load requires it, TFM can supply bonded assemblies. Backing-plate material, target thickness, bonding method, and operating power should be reviewed together.
What should I include in an RFQ for Iridium Manganese?
Specify the alloy composition, purity basis, dimensions, quantity, backing requirement, cathode model or drawing, and any tolerance, inspection, or documentation requirements.




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