hologenix magic mirror™ full wafer submicron defect ... · proprietary magic mirror™ method •...
TRANSCRIPT
![Page 1: Hologenix Magic Mirror™ Full Wafer Submicron Defect ... · Proprietary Magic Mirror™ Method • Defect Size Range: 0.4 μm height difference over a 10 mm lateral distance to 0.05](https://reader035.vdocuments.us/reader035/viewer/2022081323/5f0708e77e708231d41af8ef/html5/thumbnails/1.jpg)
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Hologenix Magic Mirror™
Full Wafer Submicron Defect Detection Systems Polishing and Grinding Marks
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Magic Mirror™
• Dimples and depressed areas show up as bright spots
• Mounds and raised areas show up as dark spots
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Optical Technique
• Halogen Lamp with Band-Pass Filter
• Series of Lenses Create Broad Beam Collimated Light Column
• Parallel Rays of Light Reflect Perpendicular to the Polished Surface – Min. 3% reflectivity required
• Reflected Rays Projected onto De-focused CCD Detector.
![Page 4: Hologenix Magic Mirror™ Full Wafer Submicron Defect ... · Proprietary Magic Mirror™ Method • Defect Size Range: 0.4 μm height difference over a 10 mm lateral distance to 0.05](https://reader035.vdocuments.us/reader035/viewer/2022081323/5f0708e77e708231d41af8ef/html5/thumbnails/4.jpg)
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Magic Mirror™ Method
Light Source
Optical Module
Collimator
Projection Lens
PC Image Processor
CCD Camera
Optical Module
Dark Dark
Bright
Reflected Image
Focus
Imaging Plane
Wafer Wafer Magic Mirror™ Optical Imaging Principle
Reflected image resulting from concavity Magic Mirror™ Optics Schematic
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Hologenix YIS-MM-2N Magic Mirror™ 2, 3 or 4 Cassette Wafer Surface Inspection Systems
• Automatic Defect Detection with Hologenix ADDS Image Processing Software
• Detection Sensitivity better than 0.05 Micron Depth with <1M-100M Radius of Curvature using the Proprietary Magic Mirror™ Method
• Defect Size Range: 0.4 μm height difference over a 10 mm lateral distance to 0.05 μm over a 0.5 mm lateral distance
• Adjustable Defect Detection and Classification Recipes
• Non-Contact Notch, Flat-Finding and Centering Technology
• 150-200 mm Wafer Inspection • Throughput: Approx. 150 Wafers per Hour • 2, 3 or 4 cassettes or SMIF pods. The -2N model #
is for 2 open cassettes • Class 1 Clean Room Compatible • Windows 10 Environment • Standalone Sorter Capability with optional OCR
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Hologenix Magic Mirror™ New Capabilities
• High Resolution Camera and Optical Components – 5 MegaPixel Camera
• IR (Infrared) Camera and Optics
• Long Focal Length Version – Greater Detection Capability for Shallow Defects
• Computer Controlled Optical Settings
• Latest Automation Capabilities – Edge handling, Wafer Sorting
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Hologenix Magic Mirror™ Software and Computer Control of Optics
Optics are controlled via a Software Interface: • Brightness • Sensitivity Settings can be stored in a recipe and easily recalled No operator involvement needed.
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200mm or 300m Magic Mirror™ YIS-200SP or YIS-300SP Defect Detection System – Manual System
• Detection Sensitivity better than 0.05 Micron Depth
• Full View and 3.5X Zoom • 200SP – Up to 200 mm Wafer Sizes • 300SP – Up to 300mm Wafer Sizes • Computer Controlled Sensitivity • Computer Controlled Intensity • Manual Loading • Rotating Wafer Chuck • Broad Beam Illumination with
Narrow Band-Pass Filtered White Lamp
• Defect Detection and Image Enhancement Software
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300mm Magic Mirror™ YIS-300SP-2 Automated Defect Detection System
• Detection Sensitivity better than 0.05 Microns Depth
• 13 or 25 Wafer Capacity FOUP or Open Cassette
• Class 0.1 Mini-Environment
• 200-300 mm Wafer Sizes
• Edge Grip Wafer Handling
• Non-contact Notch Finder & Aligner
• SECS II - GEM
• Optional OCR
• Windows 10 Based Defect Detection Software - ADDS
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ADDS - Defect Detection and Classification Software
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Automatic Defect Classification
Dimples, Mounds, Flaws, Flares, Edge Dimples, etc.
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Magic Mirror™ Applications
The Magic Mirror™ is useful for detecting problems
with many types of wafer processes:
• Polishing • Epitaxy • Oxidation, Diffusion, CVD • Post Implant Annealing, RTP • CMP • SOI
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Polishing Scratches
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Dimples – Example 1
![Page 15: Hologenix Magic Mirror™ Full Wafer Submicron Defect ... · Proprietary Magic Mirror™ Method • Defect Size Range: 0.4 μm height difference over a 10 mm lateral distance to 0.05](https://reader035.vdocuments.us/reader035/viewer/2022081323/5f0708e77e708231d41af8ef/html5/thumbnails/15.jpg)
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Dimples – Example 2
![Page 16: Hologenix Magic Mirror™ Full Wafer Submicron Defect ... · Proprietary Magic Mirror™ Method • Defect Size Range: 0.4 μm height difference over a 10 mm lateral distance to 0.05](https://reader035.vdocuments.us/reader035/viewer/2022081323/5f0708e77e708231d41af8ef/html5/thumbnails/16.jpg)
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Dimples – Example 3
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Dimples and Wax Defects
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Polishing Defects
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Mound
![Page 20: Hologenix Magic Mirror™ Full Wafer Submicron Defect ... · Proprietary Magic Mirror™ Method • Defect Size Range: 0.4 μm height difference over a 10 mm lateral distance to 0.05](https://reader035.vdocuments.us/reader035/viewer/2022081323/5f0708e77e708231d41af8ef/html5/thumbnails/20.jpg)
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Slip
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Slip at 3.5X Zoom
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SOI (Bonded)
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CMP
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SIMOX
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Back-Side Grinding
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Back-Side Grinding
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Good Wafer