Ultratech Ultratech Stepper Wafer Holder End Effector Transfer Fork Ul — Used Semiconductor Equipment Component (Ultratech)

How Much Does Ultratech Stepper Wafer Holder End Effector Transfer Fork UltraStep 4700 Cost in 2026?

As of July 2026, the used market for the Ultratech Ultratech Stepper Wafer Holder End Effector Transfer Fork UltraStep 4700 typically ranges from $307 for a B-grade unit. This price reflects a 40–60% savings compared to the OEM new price, which can exceed $750–$1,000 depending on the vendor and configuration. Refurbished units from reputable vendors like Ferrotec and Covalent Materials often fall within this range, with Ferrotec offering a 12-month warranty on their reconditioned parts.

The cost of failure for a defective or mismatched unit can be significant—$5,000–$10,000 in downtime per day if the part is used in a high-throughput 190–200mm wafer line. It’s also worth noting that condition grade plays a key role in pricing. Units with visible wear or inconsistent motion profiles may be priced lower, but they also carry a higher risk of early failure.

Ultratech Stepper Wafer Holder End Effector Transfer Fork UltraStep 4700 Specifications and Compatible Tools

The Ultratech Stepper Wafer Holder End Effector Transfer Fork is a critical component in the UltraStep 4700 stepper, used to precisely transfer wafers between the chuck and the load port. It typically supports 190–200mm wafers and is designed for use in 1998–2002 vintage systems. The fork is constructed from aluminum or composite materials and is rated for 10,000–15,000 cycles before requiring inspection.

Commonly used in Ultratech UltraStep 4700 systems, this part is not compatible with later models such as the UltraStep 5000 or 5500 due to differences in the wafer holder interface (part number Ultratech 4700-0123). A mismatched fork can lead to wafer drop or misalignment, causing $10,000–$20,000 in wafer loss and rework costs per incident.

What to Check Before Buying a Used Ultratech Stepper Wafer Holder End Effector Transfer Fork UltraStep 4700 in 2026

1. Verify the Production Year: Units made before 2000 may have different bearing tolerances. Reject any unit older than 2001 due to increased wear risk.

2. Check for Play in the Fork Joints: Use a 0.001" feeler gauge to test for lateral movement. Any movement greater than 0.002" indicates wear and should be a hard reject.

3. Test with a Dummy Wafer: Run a 190mm dummy wafer through the fork. If the fork fails to center the wafer within ±0.1mm, it may not meet process specs.

4. Inspect the Drive Mechanism: Look for signs of binding or inconsistent motion. A 10-cycle motion test should show no more than 2% deviation in fork travel.

5. Review the Maintenance History: Ask the seller for the last service date. Units not serviced in over 5 years are at higher risk of bearing failure, which can cause $5,000–$8,000 in downtime.

FAQ

Q: Can I use this fork on an Ultratech UltraStep 5000?
A: No. The fork is specifically designed for the UltraStep 4700 and is incompatible with the UltraStep 5000 due to a different wafer holder interface. Using it on the wrong model can lead to wafer misalignment and $10,000+ in wafer loss.

Q: Should I buy a used fork with over 12,000 cycles?
A: Yes, but with caution. A fork with 12,000 cycles is near the upper end of its typical lifecycle. It should be inspected for wear and may require bearing replacement. A 12,000-cycle fork failing in production could cost $7,000–$12,000 in downtime.

Q: What’s the typical lifespan of this fork?
A: The fork is typically rated for 10,000–15,000 cycles. After 10,000 cycles, it should be inspected for wear. Bearings should be replaced every 5,000 cycles to prevent failure.

Q: How does a used fork compare to a new one in performance?
A: A well-maintained used fork can perform as well as a new one, especially if it has under 8,000 cycles. The key is to verify motion accuracy and bearing condition. A new fork will cost $750–$1,000, while a used one can save you $400–$700.

Q: What’s the best vendor for this part?
A: Ferrotec and Covalent Materials are the most reliable vendors for used and refurbished Ultratech parts. Both offer 12-month warranties and have a proven track record in the 190–200mm wafer market.