Hesse BJ931

Bondjet BJ931

Fully Automatic Dual-Head Leadframe Wedge Bonder

The Bondjet BJ931 is an ultrasonic wedge bonder developed especially for maxtrix leadframe applications. The application of two bondheads enables to bond two different wire sizes as well as a combination of wire and ribbon.

The fully automatic dual-head leadframe wedge bonder Bondjet BJ931 meets the latest technology and flexibility demands for automotive and power electronics applications; handling heavy aluminum, copper wire and ribbon on two specialized bondheads that can be exchanged.

A robust, clean design, low maintenance requirements, user-friendly software and service support functions are integrated into the Bondjet BJ931, along with Hesse Mechatronics’ industry-leading PiQC™ process monitoring system.

Advanced Features and Process Advantages

  • Highest UPH due to linear motors for bonder and indexer
  • Precisely programmable bondforce actuator: wire 2500 cN adjustable, Ribbon/Cu 5000 cN adjustable
  • Automated bondforce calibration
  • Pattern recognition time: 6 ms – 8 ms (Search region: 512 × 512 pixels, pattern: 64 × 64 pixels)
  • Rapid image capture with new digital image processing and flash light illumination
  • E-Box: patented solution for optimized tool change and programmable alignment marks for guide, cutter and bond wedge

Central wedge bonder control system

  • A central 23” touch panel is used to monitor and control the bonder and indexing system
  • Metal keypad and robust trackball for industrial use
  • A user-friendly calibration wizard and automatic update of calibration data at bondhead change on all available bondheads

Interchangeable bondheads

  • The Bondjet BJ931 supports heavy wire and ribbon bondheads for aluminum, copper and AlCu
  • An intelligent bondhead connecting system with integrated memory stores all calibration data and enables bondhead replacement in a few minutes
  • Wire clamp for loop shape control is standard on all heavy wire bondheads, optionally equipped with non-destructive pulltest

Quality

  • Continuous real time monitoring of wire deformation, transducer current and frequency within programmable control limits
  • Process integrated Quality Control PiQC – integrated in Hesse Mechatronics‘ Workbench: detection of further parameters by additional sensor system (e.g. friction) for 100% quality monitoring in real time (patented)
  • Remote pull function on PiQC threshold value for optimized cycle time; up to 30 % safe on equipment
  • Inline pull modules for non-destructive pulltest with no influence on process time or bondhead integrated pulltest for wire and ribbon
  • BDE, traceability – integrated CSV-Logger or customized implementation
  • SECS/GEM – standardized server connection for automation and communication
  • MES – interface to Manufacturing Execution Systems, integrated customized implementation

General Data

  • Working area: X: 100 mm, Y: 90 mm, Z: 42 mm, P: 440°
  • Cutting methods: active, passive, air cut (for frontcut)
  • Microscope: Single stereozoom microscope
  • 23″ touch panel
  • Footprint: 1550 – 1725 mm x 1273 mm x 1885 mm (W x D x H, excl. light tower)
  • Weight (Uncrated): Approx. 1370 kg

Image processing system

  • Vision System: Hesse Mechatronics Advanced Pattern Recognition System
  • Zoom: digital with antialising
  • Field Of View: Maximum 8 mm x 6 mm
  • Correction of rotary orientation: ±5 degrees from nominal for dual point mode
    ±20 degrees from nominal for edge mode
  • Lighting: Programmable
    – dual segment ring light
    – Box light (optional)

Heavy Wire Bondhead HBK09

  • Type: HBK09 Frontcut and backcut
  • Transducer: 60 kHz, optional 40 kHz
  • Wire: Al, AlCu: 50 µm (2 mil) – 600 µm (24 mil), application-dependent
  • Bond Force: 2500 cN adjustable
  • Wedge: 2.5″ for 60 kHz

Heavy Wire Bondhead RBK02 Ribbon

  • Type: RBK02 Frontcut
  • Transducer (bond frequency): 57 kHz
  • Ribbon Dimensions:
    Al, Cu, AlCu: 250 µm x 25 µm to 2000 µm x 400 µm (Cu: 200 µm)
    (10 mil x 1 mil to 80 mil x 16 mil)
  • Bonding force: 5000 cN adjustable
  • Wedge length: 2.622″ for ribbon wedges

Heavy Wire Handling

  • Wire Feed: Motorized wire dereeler
  • Missing Wire Detection: Yes
  • Wire Spool Size: 50 mm – 120 mm OD
    10 mm – 11 mm ID
    22 mm – 45 mm width