Suss 350W MJB3 Mask Aligner – SN:

Suss 350W MJB3 Mask Aligner – SN:

ID #:





MJB3 Mask Aligner (350W)



Max Wafer:


System Dimensions:

33 x 24 x 22 inches


Topside Alignment, 350W Lamphouse, Splitfield Microscope


SUSS MJB3 MASK ALIGNER consisting of:

- Model: MJB3 Main System
- Manufacturer: Suss MicroTec / Karl Suss
- Configured for Top Side Alignment
- Max Wafer Size: 3" Diameter
- CIC 500 Power Supply
- 350 Watt Lamphouse
- UV400 Exposure Optics (for 365nm and 405nm exposure)
- Suss M230 Splitfield Microscope
- Eyepieces: 10x 
- Objectives: 3.5x and 10x
- Exposure Mode: Vacuum Contact, Hard & Soft 
- Light Source for Microscope
- Exposure Resolution: 0.8 Microns (under optimum conditions)
- Alignment Resolution: 0.25um (operator dependant)
- 1 Maskholder included (for 4"x4" masks)
- 1 Wafer Chuck included (specify size, many in stock)
- Brand New 350W Bulb, qty. 1 included
- Operations Manual for Suss MJB3 Mask Aligner
- Refurbished by Former Suss factory Trained Technicians to Meet Original Suss MJB3 Specifications!




1) Main System Body:
- Ellipsoidal Mirror Replaced with New
- UV Bulb Replaced with New
- Cold Light Mirror Inspected & Replaced as Needed
- Front Turning Mirror Inspected & Replaced as Needed
- Front Lens Inspected & Replaced as Needed
- Shutter Cylinders Replaced with New
- Mirror House Cylinder Replaced with New
- Lamp Power Supply Tested & Repaired or Replaced as Needed 
- Exposure Optics Tested 
- Microscope Illumination Bulbs Replaced with New
- Microscope Assembly Inspected and Adjusted as Needed
- Full Optical Alignment of Microscope Performed as Needed
- Machine is Fully Tested to Verify Compliance to Original Specifications
- WEC Head Rebuilt 
- Pneumatic Regulators Inspected & Replaced as Needed
- Machine Covers are Repainted or Replaced as Needed


2) Isolation Table:
- Isolation Table Air Bags Inspected & Replaced as Needed
- Pneumatic Regulators Inspected & Replaced as Needed
- Air lines Inspected & Replaced as Needed
- Wheels Inspected & Replaced as Needed 
- Leveling Feet Inspected & Replaced as Needed


3) If Applicable:
- Transport Slide Rebuilt 
- Pre-Aligner Assembly Rebuilt 
- Wafer Alignment Stage Rebuilt 
- Cassette Elevator Rebuilt



- ClassOne Supports all its Used and Refurbished Suss Mask Aligners with Spare Parts and Service Worldwide
- Installation & Training Available Worldwide
- Learn more:


Excellent Condition Guaranteed. 
Fully Refurbished to Factory Specifications by ClassOne. 
6 Month Warranty and Full Specifications Guarantee. 
30 Day Right of Return.

As-Is/Where-Is Pricing is Also Available. 

ClassOne Equipment will ship via FedEx, UPS, DHL and/or your desired shipping company. For larger items we will ship via one of our partnered shipping companies who are experienced with handling sensitive semiconductor manufacturing equipment.

All orders are shipped EXW from Atlanta, Georgia USA. Availability and lead-times are based on current conditions and are subject to change depending on in-house demand at time of ordering. We estimate the shipping and delivery dates based on the availability of your parts as well as the shipping options you have chosen. Rush orders will ship the same-day that they are received, if received by 2:30 PM ET. There is an expedite fee for all rush orders requested. All international shipping are shipped EXW and import duties and taxes are the responsibility of the purchaser. ClassOne Equipment charges sales tax for items shipped to CA, GA, MI, TX, and MT.

ClassOne Equipment warrants all non-consumable parts for 90 days (unless otherwise stated). This warranty commences upon documented delivery.

This warranty does not apply to defects caused by negligence, improper installation, misuse, unauthorized repair, accident or alteration by the purchaser, or damage during shipping. This warranty does not cover consumable parts. No other warranty is made, expressed or implied, statutory or otherwise.

For all return information and authorization (including RMA #), please contact ClassOne Equipment at +1-770-808-8708 or

Please have your Sales Order number or Invoice number available to expedite the return process.

Please note the following important information: (a) all returns must include all original, undamaged items in their original packaging; (b) all items must be in the same condition as received; (c) shipping and handling fees are non-refundable; (d) purchaser is responsible for all return shipping costs (including international shipping import/export duties and taxes).

Returned items must meet ClassOne Equipment inspection standards for credit to be issued.