1.1.1   WAFER DIE EJECT FEEDER (WDEF)

The Wafer Die Eject Feeder is used to present bare dies and flip chips for placement from fixed and expanded wafers up to 8“ in diameter.

• The standard WDEF consists of

• Base including:
• XY-Gantry
• Boom with camera, zoom, illumination and dual flipper mechanism
• Eject Mechanism
• Loading Arm
• Control Cabinet
• Expansion Unit (comes separately as accessory, see section 1.1.2)
• Static Tray for wafer loading

As Option to the WDEF are available:

• Heating Option for eject Mechanism
• Barcode Reader for wafer identification for electronic wafer mapping (incl. SW)
• Upgrade to automatic wafer magazine handler
•  
• Mounted on Dove Tail Plate
• Max. 2 WDE per machine, in machine front.
• Quick Change Expansion Unit
• Quick Change Ejector
• Dual Flippers for Flip Chip or µBGA
• Direct Pick
• Camera Zoom with 4 fixed FOV
• Optical Mapping
• Optical Ink dot Recognition
• Integrated blower to warm up foil during expanding and unloading
• Programmable Stretch
• Programmable Needle Height
• Standard ESEC pepper box for die size: 1 x 1mm2 .. 12 x 12mm2   (part # 841.029)
• Programmable Eject speed
• Different diameters for rubber tip (same as for vacuum nozzles)
• Expansion unit type to be specified and ordered separately (see section 1.1.2 .)
• Additional Die Ejector Sets available.

1.1.1.1   WDE Option: Heating Option for Eject Mechanism

Heats WDE die ejector set to a constant, regulated temperature, in order to facilitate die ejection.

• Manual temperature adjustment

1.1.1.2   WDE Option: Automatic Wafer Cassette Handler WDE Option: Heating Option for Eject Mechanism

Wafer Cassette Elevator docks to the Wafer Die Ejector and allows to automatically load/ unload wafers on frames from a wafer cassette.

1.1.1.3   WDE Option: Bar Code Reader WDE Option: Automatic Wafer Cassette Handler

The barcode reader is mounted on the base of the WDEF and used for wafer identification. 22 different codes are supported (e.g. Code 39, Code 128, 2/5 interleaved, Codabar)
 -The barcode must be located on the left side of the wafer frame

1.1.2   Expansion Unit WDE Option: Bar Code Reader

Each frame type requires a different expansion unit. Frame type must be specified at the time of order.