Introduction to Wirebonding Machine and Pick

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Introduction to Wirebonding Machine and
PickPlace Tool

• Pengcheng Jia
• Nov 21, 2002

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West Bond Inc.

• 1551 Gene Autry Way, .
• Anaheim, CA 92805
• Phone [phone]
• Fax [phone]

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Wire Bonding Machine
Gold wire spoon
Tool
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Wedge Wire Bonder

• Model 7400B Series
• Wedge-Wedge Wire Bonders
• Manual X-Y-Z

Adjust bonding force
N2
A heater is around the tool
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Temp Controler Workholder
Temp Controler, press and up or down arrow to
adjust workholders temperature
Workholder with rotation adaptor
Power and N2 pipes
Furnace Workholder with cavity inert atmosphere
(N2) and rotating mirror
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Control-Right Side
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Control-Left side
Display parameters
Open clamp Or feed wire
Tool heater control
Move tail back/forth
Memory
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Operation
Clamp

• Turn on equipment, turn on N2 gas
• Setup configuration
• Clamp sample on the workholder heat it if
  necessary
• Bond first point Take the handle bar, gently
  touch the pad, hear a beep, the ultrasonic power
  is applied to melt gold wire to the pad
• Move from front to back with a loop when the
  handle is lifted, clamp opens when tool is
  lowered to some extend, clamp is closed, then the
  length of the wire cant be changed.
• Bond second point and break the wire

Tool
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Bonding principle
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Toughest Operation
Use tweezers to get the wire through the hole in
the tool
Operator face the front, cant see the hole
Gold wire
Tool
Clamp
Hole in the tool
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Assessory Vendor

• For workholder other components, contact West
  Bond Inc.
• For tools, contact Deweyl Tool, Inc.
• Lead time may be several month, so order in
  advance
• Gold wire from California Gold Wire

Cal Fine Wire Co. Fax[phone] Phone1-805-4
89-5144
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Assessory Types

• Wire
• 0.001 gold wire
• Elong 0.5-2
• Tool
• shank size length
  tip size (20x25 mil2)
• MCSOE-1/16-750-45-C-2025-M or
• shank size length
  tip size (20x15 mil2)
• MCSOE-1/16-750-45-C-2015-M

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Pick Place Tool

• Model 7316B/7200B Series,
• Dual Head Die Bonders,
• Manual X-Y-Z
• This machine with tool heads for dispensing epoxy
  and for pick up and placement of dice. Die
  rotation and radiant heat to the tool are both
  included. A third head with a vacuum capillary
  tool for pick and place of preforms is also
  included. Exchange of this head for the epoxy
  dispense head converts this machine from epoxy to
  eutectic preform bonding. Mechanical scrub motion
  for the bond head, driven by the transfer motor,
  is programmable in both amplitude and number of
  repetitions Bonding force is adjustable by a low
  rate coil spring.

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Eutectic Bonding 7316B
Vaccum
Vaccum
Vaccum for solder
Collet for picking up die
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Epoxy Bonding 7200B
Vaccum
compressed air
Vaccum for Die
Change to epoxy reservoir
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Air Connections

• Switch at the back of machine switch between
  7316B(epoxy) and 7200B(eutectic) before operation
• Compressed air, regulated to 50 psig, is
  required.
• Connection is via ¼" tubing.
• Normal shop vacuum is required with connection
  also to ¼ in. tubing.
• Regulator is on the left back side of the machine
• N2 is conntect to the right back side. It is for
  providing N2 atmosphere enviorment at the
  workholder. Regulator is also on the right back
  side

Required Services and Dimensions Compressed air,
regulated to 50 psig, is required. Connection is
via ¼" tubing. Normal shop vacuum is required
with connection also to ¼ in. tubing.
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Collet and Tool Vendor
Gaiser Tool Company 4544 McGrath Street .
Ventura, CA . 93003 . USA . Phone [phone] .
FAX [phone]
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Eutectic Die Collet
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Vaccum pick up tool
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Shank Style