Description of Pure Molybdenum Moly Wafer

Molybdenum wafer is a circular sheet made of molybdenum material, usually with a diameter of 0.1mm to 2.0mm. It usually has high density, good mechanical properties, and corrosion resistance, and can be used to manufacture various high-temperature and corrosion-resistant parts.

Molybdenum has a wide range of applications in the semiconductor industry. Here are some common applications:

Mask manufacturing: Molybdenum is used in semiconductor manufacturing to make masks for the photolithography process in photolithography.

Connectors and leads: Molybdenum is used to make connectors and leads in semiconductor chip packaging.

Heat sink: Molybdenum is also used as a heat sink material in semiconductor devices. Semiconductor devices generate heat during operation, and if the heat is not dissipated in time, it may cause device damage.

Via layer: Molybdenum is also used in semiconductor manufacturing to make via layers for interconnection on circuit boards.

Pure molybdenum and MoCu are the ideal materials as carrier wafers for bonding to LED chips, because of their compatible thermal expansion with semiconductor materials and ceramics, high melting point, high thermal conductivity, and electrical conductivity.

Preparation Process of Pure Molybdenum Moly Wafer

Raw material selection: Use high-purity molybdenum powder (purity ≥ 99.95%). Ensuring the high purity of raw materials is the basis for producing high-quality molybdenum wafers.
Processing technology:
Powder metallurgy method: Press and sinter the molybdenum powder, and then go through multiple rolling and annealing processes to prepare high-purity, high-density molybdenum wafers.
Vacuum melting method: Melt in a vacuum environment to reduce the mixing of impurities and improve the purity and performance of molybdenum wafers.
Heat treatment: Through high-temperature annealing treatment, the grain structure of the molybdenum wafer is optimized to improve its ductility and toughness.

Features of Pure Molybdenum Moly Wafer

High-Temperature Performance: Molybdenum is a refractory metal with a very high melting point and good strength at high temperatures. It stays stable even in extreme heat, so molybdenum wafers do not deform easily under high temperatures. This makes them suitable for high-temperature applications.

Low Thermal Expansion: Molybdenum has a low thermal expansion coefficient, similar to silicon and other semiconductor materials. Because of this, it is an ideal support material for semiconductors. Whether in high or low temperatures, molybdenum wafers experience minimal size changes, reducing stress caused by thermal expansion.

Good Thermal Conductivity: Molybdenum conducts heat well, allowing for efficient heat dissipation. For example, in power semiconductor devices, molybdenum wafers can be used as heat sinks to help lower the operating temperature.

Excellent Mechanical Properties: Molybdenum wafers are hard and wear-resistant, making them capable of handling heavy mechanical loads. Their structure is uniform, and after processes like cold rolling and vacuum annealing, their density becomes very close to the theoretical maximum, further improving their strength.

Corrosion Resistance: Molybdenum resists many chemicals well, especially at high temperatures. This makes it useful in equipment exposed to corrosive environments, such as stirrers in glass melting furnaces.

Applications of Pure Molybdenum Moly Wafer

Semiconductor Industry:
Molybdenum wafers are often used as heat-dissipating substrates in semiconductor devices. They effectively transfer and spread heat generated during operation, ensuring stable and reliable performance. Additionally, molybdenum wafers can serve as radiation shields and cover plates in sapphire crystal growth furnaces.

Vacuum Furnace Heating Elements:
Thanks to its high melting point and good electrical conductivity, molybdenum can be made into heating strips and connectors for heating elements in vacuum furnaces.

Sputtering Targets:
In the production of flat-panel displays and thin-film solar cells, molybdenum wafers are used as sputtering targets to deposit thin films.

Glass Melting Equipment:
Due to its high-temperature resistance and corrosion resistance, molybdenum is an ideal material for stirrers and crucibles in glass melting furnaces.

Aerospace & Automotive Applications:
Molybdenum coatings can be applied to aerospace and automotive parts, such as shafts and bearings, to reduce friction and improve durability.

Specifications of Pure Molybdenum Moly Wafer

Material	Coefficient of thermal expansion [ppm/K]	Thermal conductivity [W/(m ·K)]	Specific heat [J/(g·K)]	Density [g/cm3]	Hardness [HV]	Young's Modulus [GPa]
Mo	5.1	138	0.25	10.2	240	320
85Mo-15Cu	7.0	160	0.28	10.0	150	280
80Mo-20Cu	7.5	175	0.28	9.9	160	250
70Mo-30Cu	8.3	200	0.29	9.8	180	230
60Mo-40Cu	10.2	222	0.31	9.6	170	210
50Mo-50Cu	11.2	260	0.32	9.5	165	180

Testing and Quality Control of Pure Molybdenum Moly Wafer

Dimensional accuracy: The dimensional tolerance of molybdenum wafers is strictly controlled within ±0.05mm to ensure high precision.
Surface quality: The surface is smooth, without scratches, cracks, oxidation, and other defects, and can be polished to further improve the surface finish.
Composition control: Strictly control the oxygen content (≤0.01%) and carbon content (≤0.01%) to ensure the high purity and high performance of molybdenum wafers.
Performance testing: The finished product is tested for mechanical properties (such as hardness, tensile strength, etc.) and corrosion resistance to ensure that it meets the standards.

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FAQ For Pure Molybdenum Moly Wafer

Are you a factory or a manufacturer?

A: Yes, we are a factory, but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.

What is the delivery method?

A: Generally, we send cargo by UPS, DHL, or FedEx. Also, we can send by sea to a seaport or by air to the closest airport.

Why is your product so cost-effective?

A: We cut out the middlemen in the end-to-end manufacturing process, and we obtain raw material directly from its source.

Do you do spot quality inspection or full inspection?

A: 100% full inspection for sure. All unqualified products are discarded.

How do you ensure your lead time?

A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of Pure Molybdenum Moly Wafer?

A: Depends on quantity; generally, no MOQ limit.

How to pay for it?

A: A bank transfer (T/T) will be acceptable.

What is the delivery time?

A: around 7-20 days, which depends on the quantity and production.

What kind of package is it?

A: Generally, we use a carton case or plywood case with protective material inside to ensure the safety of cargo

What is the lead time?

A: From the order placed to cargo receiving will take around 10-25 days.