Full-automatic wire bonder welding head

A wire bonding machine and wire bonding technology, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of poor stability of small force output and difficult control and adjustment, and achieve stable and reliable pressure control. Improve elastic performance and stability, good repeatability effect

Inactive Publication Date: 2016-05-25
CHINA ELECTRONIC TECH GRP CORP NO 2 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a welding head of a fully automatic wire bonding machine, which solves the technical problems of poor stability of small force output and difficult control and adjustment existing in wire wedge welding

Method used

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  • Full-automatic wire bonder welding head
  • Full-automatic wire bonder welding head
  • Full-automatic wire bonder welding head

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Embodiment Construction

[0012] The present invention is described in detail below in conjunction with accompanying drawing:

[0013] A fully automatic wire bonding machine welding head, comprising a motor fixing frame 19, a voice coil motor, an industrial control machine and a wire bonding ultrasonic transducer, a motor 18 and a bearing 20 are respectively arranged on the motor fixing frame 19, and a motor 18 and a bearing 20 are arranged on the bearing 20 is provided with rotating shaft 15, is provided with pulley 16 on rotating shaft 15, is provided with transmission belt 17 between pulley 16 and the output shaft of motor 18, is connected with fixed ring 1 at the lower end of rotating shaft 15, in The right end of the wire-bonded ultrasonic transducer is provided with a piezoelectric ceramic 10, the left end of the wire-bonded ultrasonic transducer is connected with a chopper 11, and the elastically deformable rectangular block 2 is provided with a voice coil motor in the vertical direction. The ho...

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Abstract

The invention discloses a full-automatic wire bonder welding head which solves the problems that in wire wedge bonding, the micro-force output stability is poor and control regulation is difficult. The full-automatic wire bonder welding head comprises a motor fixing frame (19), a voice coil motor, an industrial control computer and a wire-bonding ultrasonic transducer; piezoelectric ceramic (10) is arranged at the right end of the wire-bonding ultrasonic transducer, the left end of the wire-bonding ultrasonic transducer is connected with a riving knife (11), a voice coil motor stator (6) is fixedly connected to the lower end face of a micro-force actuating mechanism installing plate (1) in an inverted and hung mode, an elastic deformation rectangle block (2) is connected between the micro-force actuating mechanism installing plate and a transducer installing sleeve (9), the top end face of a voice coil motor rotor (7) is connected with the top end face of the transducer installing sleeve in an abutted mode, and the piezoelectric ceramic, the voice coil motor and a position sensor (8) are all electrically connected with the industrial control computer together. In the whole pressure stroke, the full-automatic wire bonder welding head is stable and reliable in pressure control and good in repeatability.

Description

technical field [0001] The invention relates to a wire bonding machine, in particular to a welding head of the wire bonding machine. Background technique [0002] The automatic wire bonding machine can realize the functions of wire bonding, substrate heating, automatic wire feeding, pressure control and other functions at the same time by completing the adsorption positioning of the chip and the substrate, and the precise alignment between the chopper and the substrate pad, so as to realize the bonding between the chips. lead interconnects. At present, most of them are manual equipment, using cylinder and spring adjustment, and manual pressure. In the use of automatic wedge welding, manual pressure is no longer available, and the response of cylinder adjustment is slow, which cannot meet the high-speed automatic wedge welding. In addition, the ordinary spring pressurization method adopted, the output pressure changes greatly, resulting in unstable bonding solder joints. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/02H01L21/60
CPCB23K37/0247H01L24/78H01L24/85
Inventor 姬臻杰赵喜清王晓奎王彩萍
Owner CHINA ELECTRONIC TECH GRP CORP NO 2 RES INST
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