Bonding equipment and bonding head structure thereof

A technology of bond head and voice coil motor, which is applied in the field of wire welding machine and its head structure, can solve the problems of unstable pressure output, poor stability of force constant, and affecting the quality of welding wire, so as to achieve stable pressure output and improve stability , the effect of improving the stability of the force constant

Active Publication Date: 2021-07-02
广东阿达智能装备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Please refer to figure 1 and figure 2 However, due to the weak effective magnetic field area of ​​the existing Bangtou voice coil motor, and the magnetic field strength has a peak area, the force constant stability of the Bangtou in the welding (bonding) area is poor, making it in The pressure output in the important working range is unstable, which will eventually affect the quality of the welding wire

Method used

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  • Bonding equipment and bonding head structure thereof
  • Bonding equipment and bonding head structure thereof
  • Bonding equipment and bonding head structure thereof

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Embodiment Construction

[0025] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0026] Such as image 3 with Figure 4 As shown, the wire bonding machine of the present invention includes a bonded head structure, wherein the bonded head structure includes a voice coil motor 1, a bonded head body 2, a transducer 3, a wire clip 4 and a chopper 5; wherein the bonded head body 2 One end of the voice coil motor is mechanically connected to the voice coil motor 1, the transducer 3 and the clamp 4 are installed on the other end of the main body of the state head 2, and the clamp 4 is located above the transducer 3, and the rivet 5 is installed on the transducer 3 Front end. The voice coil motor 1 drives the head main body 2 to rotate at high sp...

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Abstract

The invention provides bonding equipment and a bonding head structure thereof, wherein the bonding head structure comprises a voice coil motor, a bonding head body, a transducer and a chopper. One end of the bonding head body is mechanically connected with the voice coil motor, the transducer is installed at the other end of the bonding head body, and the chopper is installed at the front end of the transducer. The voice coil motor comprises a rotor and two stators connected with the rotor; and the rotor is mechanically connected with the bonding head body, and the rotor is clamped between the two stators. The rotor is provided with a coil, a magnet with a trapezoidal cross section is arranged in each stator, the two magnets are arranged close to the coil, and the coil is clamped in the middle. According to the bonding equipment and the bonding head structure thereof, the force constant stability in a bonding area is improved, and the pressure output in an important working interval is stable, so that the stability of the chopper at different heights during working is improved, and the bonding quality is improved.

Description

technical field [0001] The invention relates to the technical field of welding equipment, in particular to a wire welding machine and its head structure. Background technique [0002] The wire bonding machine is one of the core processes in the back-end process of semiconductor packaging, and the bond head is the most important part of the wire bonding machine, and it is the direct component for gold wire bonding. In the whole process of wire bonding, the first welding and the second welding are important process stages, which determine the quality of the connection with the chip or lead frame. The pressure during welding directly affects the shape of the solder ball, the formation of extruded aluminum and alloys, and the pressure during welding is directly given by the voice coil motor of Bangtou. [0003] Please refer to figure 1 with figure 2 However, due to the weak effective magnetic field area of ​​the existing voice coil motor of the Bangtou, and the magnetic fiel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K3/00B23K1/00B23K3/08H01L21/603B23K101/40
CPCB23K1/00B23K3/00B23K3/08B23K2101/40H01L24/78H01L2224/78821H01L2224/78841
Inventor 张昕阳贺云波罗诚言益军刘青山关晓明
Owner 广东阿达智能装备有限公司
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