Products Description
Molybdenum boat is a important consumable in vacuum coating (such as thermal evaporation, electron beam evaporation, resistance evaporation), used to carry evaporation materials (such as aluminum, silver, gold, oxides, etc.). Molybdenum boat is an ideal choice for high-purity coating process due to its high melting point, low vapor pressure, good electrical and thermal conductivity.
Specification
Dimensions of molybdenum boat
|
Name |
Symbol of products |
Size(mm) |
Trough Length (mm) |
Trough Depth (mm) |
|
Molybdenum boat Special size can be customized! |
210--00PG |
0.2*10*100 |
50 |
2 |
|
215--00PG |
0.2*15*100 |
50 |
7 |
|
|
216--03PG |
0.2*25*118 |
80 |
10 |
|
|
308--00YG |
0.3*8*100 |
50 |
2 |
|
|
310--00PG |
0.3*10*100 |
50 |
2 |
|
|
310--01PG |
0.3*10*70 |
40 |
1.8 |
|
|
312--00YG |
0.3*12*100 |
50 |
2 |
|
|
313--02YG |
0.3*13*49 |
33 |
3.3 |
|
|
315--03YG |
0.3*15*100 |
50 |
7 |
|
|
316--00PG |
0.3*16*100 |
50 |
4 |
|
|
318--03YG |
0.3*18*100 |
40 |
3.5 |
|
|
514--00YG |
0.5*14*100 |
50 |
2.6 |
|
|
515--00PG |
0.5*15*100 |
50 |
2.6 |
Features
✅ High melting point (2620℃): suitable for high temperature evaporation materials (such as Al₂O₃, SiO₂).
✅ Low vapor pressure: almost no volatility at high temperature, avoiding contamination of the coating layer.
✅ High purity (≥99.95%): reduce the introduction of impurities and improve the quality of coating.
✅ Corrosion resistance: anti-corrosion by molten metals (such as Al, Ag, Au).
Applications
(1) Semiconductor coating
Electrode coating: Al, Cu, Au evaporation (LED, IC packaging).
Dielectric layer: SiO₂, Al₂O₃ (insulating layer, passivation layer).
(2) Optical coating
Reflection/anti-reflection film: MgF₂, TiO₂ (lens, filter).
AR/IR coating: multilayer optical film system (glasses, laser lens).
(3) Decorative coating
PVD coating: Cr, TiN (watch, mobile phone housing).
Anti-fingerprint coating: fluoride (AF coating).
(4) Scientific research coating
Superconducting film: YBCO, NbN (quantum device).
Two-dimensional materials: graphene, MoS₂ (nanomaterial research).
Molybdenum Boat Selection Guide
| Parameter | Recommended Value | Remarks |
|---|---|---|
| Material | Pure Molybdenum (Mo1) or TZM Alloy | TZM has better high-temperature resistance but is more costly |
| Thickness | 0.2mm~1.0mm | Requires thicker (≥0.5mm) for electron beam evaporation |
| Surface Treatment | Polishing or coating (such as Al₂O₃) | Reduces material adhesion and extends lifespan |
| Working Environment | High vacuum (≤10⁻⁵Pa) | Prevents oxidation and contamination |
Main Types of Molybdenum Boats
| Type | Features | Suitable Processes |
|---|---|---|
| Standard Molybdenum Boat | Simple U or V shape structure, economical and practical | Resistance evaporation, low-melting-point metals (Al, Ag) |
| Electron Beam Molybdenum Boat | Special deep groove design, resistant to electron beam bombardment | Electron beam evaporation (high-melting-point oxides) |
| Multi-layer Molybdenum Boat | Multi-slot structure, capable of evaporating multiple materials simultaneously | Composite coating, alloy coating |
| Custom Molybdenum Boat | Special-shaped structure (such as round, square) | Special coating requirements (such as optical coating) |
FAQ of Molybdenum Boat
What are the standard sizes of molybdenum boats?
Common specifications:
Length: 50-150mm (customizable at 5mm intervals)
Width: 10-30mm
Depth: 5-15mm
Thickness: 0.2-1.0mm (≥0.5mm recommended for electron beam evaporation)
How to determine if the molybdenum boat needs to be replaced?
Replacement criteria:
① Deformation > 10% of the original size
② Visible cracks or perforations
③ Decreased coating purity
④ Evaporation rate drops by more than 30%
What is the typical service life of a molybdenum boat?
Depends on the conditions of use:
Aluminum evaporation: about 50-80 times
Silver evaporation: 30-50 times
Oxide evaporation: 15-30 times
(Electron beam evaporation life is halved)
Are you a factory or manufacturer?
A:Yes, we are a factory but generally, we use our trading company to handle the business abroad. It will be 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 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. Rather than obtaining semi-finished goods from other suppliers, we obtain our raw material of APT powder directly from its source.
Do you do spot quality inspection or full inspection ?
A:100% full inspection. Inspectors will check the finished product individually, to ensure they adhere to all parameters. All unqualified products are discarded.
How do you ensure your lead time?
A: We have an efficient Order Management System, 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 molybdenum boat ?
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 is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
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