Photomask Repair

Rhazer-III

3rd Generation Haze Removal System

Production Photomask Haze Mitigation and Removal

Rhazer III

The Bruker Rhazer-III® system is specially designed for the wafer fab to provide an in-fab haze removal and management capability. Rhazer technology is clean and dry.

Dry, Laser-Based
through-pellicle process to breakdown crystalline growth
Utilizes indirect thermal decomposition and covers the entire mask area under the pellicle.
Independent
of particle size
Decomposition is not dependent on absorption cross section of the defect. Delivering complete removal of seed nucleation sites in the processed areas.
No Degradation
of material
No change to critical dimensions, phase or transmission. No damage to sensitive pattern geometries (SRAFs, optical assist features, etc.).
Routinely Removes
crystalline defects
The Rhazer process typically removes ammonium sulfate, ammonium carbonate, and ammonium oxalate defects.
Through-Pellicle
micro-contamination removal
Breaks down crystalline growth via indirect thermal decomposition.
Eco-Friendly
haze-removal technology
Uses no harmful effluents and has low energy consumption.
In-Fab
mask processing
Enables reticles to be cleaned without leaving the fab line.
Preventative
haze-mitigating storage
Necessitates fewer cleans and integrates management capability.
Features

Photo-Induced Defect Management (Haze Mitigation)

Photo-induced micro-contamination on photomasks (haze) has become an increasingly pervasive and costly problem throughout the semiconductor industry. Recent wet clean and environmental control techniques have helped to slow haze formation during wafer stepper exposures, but show no promise of a haze prevention solution. The Bruker Rhazer-III® system is specially designed for the wafer fab to provide an in-fab haze removal and management capability. Rhazer technology is clean and dry. Processing the mask does not require removal of the pellicle and causes no damage to the mask absorber materials and no changes to phase, transmission or CDs, meaning reticles can be cleaned as often as needed without leaving the control of the fab line.

Key Performance Features

Increased Lithography Line Efficiency:

  • Dry process - no pellicle removal
  • Fast turnaround - full reticle clean
  • Full control - retcles never leave the wafer fab
  • Fewer cleans - no haze formation in storage
 

Fully Automated Operation:

  • SMIF & Overhead Track compatible; RFID/OCR/Barcode readers
  • SECS/GEM compatible
  • Robotic handling including mask flipper
  • Easy to operate; highly user friendly GUI

 

Extends Mask Lifetime:

  • No absorber damage
  • No CD, phase or transmission variance
  • No added chemical residues
  • No limit to number of cleans

Wafer Fab Cost Savings:

  • Less wasted scanner downtime waiting for masks
  • Very low cost mask cleans
  • Fewer duplicate masks needed
  • Extended interval between defect inspections
  • Reduced haze-related wafer losses
 

"Green" Technology:

  • No acids, solvents or de-ionized water
  • No harmful effluents or waste management
  • Low energy consumption (7kW @ 208V AC)
  • Small system footprint (1.24m x 2.31m)

Results

Support

How Can We Help?

Service and Application Support to Optimize Tool Utilization

The decision to invest in high-performance metrology is based on more than instrument performance and price. Bruker is committed to keeping your tool running at the peak of up-time and productivity. We have a highly educated worldwide team of service and support personnel that takes great pride in first-time solution of issues. Our variety of service coverage programs can be customized to match your specific requirements, including optimization of tool performance, recipe writing, and in-person technical support visits.

Bruker tailors services to your needs:

  • Priority technical support
  • Advance replacement parts and assemblies stored in regional warehouses for rapid response times
  • Application and training services

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