LIS-B3

BT Imaging

Designed in consultation with leading manufacturers of silicon bricks and ingots, BT Imaging's new silicon brick and ingot inspection production tool reports bulk lifetime and enables the production of silicon wafers that are ideal for high efficiency solar cells. This tool is for quality control and process development in silicon ingot and brick production facilities. Bricks and ingots are loaded manually or robotically. Throughput is designed to allow for 100% of product.

Ask an Expert: JULO Advisory



Call Us: +1 (855) 222-5856
Stay current on live opportunities: Subscribe >

Type: Metrology


Tool Layout
Tool Layout 1

1. Wide open loading bay allows for manual or robotic load, rotation and unload

2. Auto translation stage

3. PL Imaging System

4. Measurement Zone

5. Control System and Servers

Tool Layout 2

6. Adjustable brick stage for different brick length

  • Max brick size
    • 156 x 156 x 650 mm
    • May be configured for larger bricks upon special request

 


 

Applications | Automation Options | Reported Metrics

 

 Sample Type Multi-Brick & Mono-Ingot


Application

- Wafer specifications based on bulk lifetime & defects
- QA & QC in silicon casting
- Process debug in casting
- Process and product improvement in casting
- Cutting guide for silicon bricks to remove low quality material with lowest loss of good quality material
- R&D in casting and wafering
- Option for wafer and cell defect inspection



Automation

- Manual or Factory Robot Load
- Manual or Factory Robot Rotation
- InkJet marking of Cutting Guides



Data

- Bulk Lifetime image resolution in µS measured at 1024 micron resolution in both x and y
- PL Imaging Silicon Defects - PL Images
- PL Imaging Silicon Defects - proprietary metrics and overlays for (a) multi - dislocations & impure regions, (b) mono - dark line features and slip lines
- Cutting Guide is based on pre-set Bulk Lifetime and defect values and reports distance from the end in mm

icon2


 

Specifications

 

Inspection System and Automation Technology  Specification 


Camera Technology  Proprietary CCD Technology 


Camera Depth of Field  +/- 2mm 
Camera Resolution  160umpixel =1024(max)LineScan 


Laser Class 1. Interlocks on Optical Enclosure doors. Laser cooling required (BT Imaging can provide a specification for the laser cooling or a cooling unit can be purchased from BT Imaging as an optional extra) 


Cycle Time

20-60 Seconds Per Brick Face (subject to measurement mode and required resolution) – up to 2GW throughput per annum per tool.

3-5 minutes per brick for measurement of all 4 sides; Wafer and Cell throughput times - ca. 20 seconds per sample



Material Multi and Mono Bricks, Raw Wafers, Half Processed Wafers and Finished Cells 


Loading of All Sample & Rotation of Brick Sample  Manual or Factory Robot 


Measurement Automatic – Sample Returns to Unload/Rotate Position 


Inspection on Bricks 

Bulk Lifetime Image at up to 80um per pixel resolution, bulk lifetime in 𝓊S

PL Imaging Silicon Defects

PL Imaging Silicon Defects – proprietary metrics and overlays for (a) multi – dislocations & impure regions, (b) mono - dark line features and slip lines

Cutting Guide and Grading Guide – based on pre-set Bulk Lifetime



Inspection of Wafers  Multi wafers – Impure Edges, Impure Corners, Impure Middles , Dislocations, Q-factor (cell efficiency factor) Mono wafers - Dark Ring Strength , Dark Corner Defects, RDS, Cracks, Dark PL Features 


Inspection on Cells (under continuous development) 

Multi cells – Wafer defects (Impure Edges, Impure Corners, Impure Middles , Dislocations), Series resistance Defects (Broken Finger Location, Broken Finger Region of Influence, Bright PL Lines, Bright PL Areas)

Mono Cells – Wafer Defects (Ring Defects, Dark Corner Defects, Dark Middle Defect, Cracks, Dark PL Features), Series resistance Defects (Broken Finger Location, Broken Finger Region of Influence, Bright PL Lines, Bright PL Areas, Firing Issues)



Inspection on Thick Mono Slugs (OPTOINAL BY REQUEST)  Mono slugs – non-uniformity, RDS, Bright corner strength, Bright corner width, Dark corner strength, Dark corner width, Middle brightness, Radius, Ring strength 


GUI 22” TFT and Keyboard 


Brick Max Size  156 x 156 x 650 mm 


Machine Size & Weight  2.15m Long x 0.70m (deep) x 1.73 m (high), approximately 350 kg 


Inkjet Printing  Inkjet marking to automatically mark brick for cutting zones. 200 DPI resolution (under development)

 

CONNECT WITH A SPECIALIST

Contact Us | +1 (855) 222-5856

JULO Advisory Services


JULO Advisors leverage innovative tools to tailor your surplus solution: targeted mass marketing efforts, global equipment marketplace, online auctions and expert advisory services. By offering customized end-to-end surplus solutions, JULO is among the fastest growing disposition and procurement service providers in the world (Assets Under Management). + Learn More

Valuation Services - Providing data-driven asset appraisals based on current and historical transaction analytics.

Asset Management - Assisting with the development and execution of in-house and outsourced asset management programs.

Facility Disposition - Offering customized transaction advisory and execution of whole facilities, including assets.

Liquidity Solutions - Ensuring surplus assets are quickly sold through the right channels to the right buyers for the highest value.

Shipping & Logistics - Managing the logistical planning for crating and delivery of assets across the globe.

Procurement SolutionsAdvising throughout the entire asset purchasing process for equipment and whole manufacturing plants .

 

JULO Referral Program


Capitalize on your network and connections. The JULO Referral Program invites everyone to participate, share, and support each other to better the industries in which we serve. Upon a successful transaction with your referral, you will earn 10% on JULO’s equipment revenue for that transaction+ Learn More