NDLI: Design and modeling of jet dispenser based on giant magnetostrictive material

Content Provider	IEEE Xplore Digital Library
Author	Zhiqi Ge Guiling Deng
Copyright Year	2009
Description	Author affiliation: Key Laboratory of Modern Complex Equipment Design and Extreme manufacturing, Central South University, Ministry of Education College of Mechanical and Electronic Engineering; Central South University; Changsha Hunan 410083; China (Zhiqi Ge; Guiling Deng)
Abstract	The rapid development of microelectronics packaging technology drives the development of packaging equipment manufacturing industry. As an important equipment of packaging technology, fluid dispensing system is developed rapidly. Non-contact jet dispensing is the latest technology of dispensing technology. Compared to the conventional contact dispensing methods, jet dispensing technology is a non-contact method and has the following advantages: (1) it has high flow rate, high dispensing frequency; (2) This method needn't z-axis motion; (3) it has high dispensing accuracy and smaller wet area; (4) Needle bending and Chip surface damage situation does not arise. In this paper, we design a non-contact jet dispensing device based on giant magnetostrictive material. The giant magnetostrictive material (GMM) is a new type of function material with giant strain, high response speed, high power density and great output force. For this jet dispenser, the GMA (Giant Magnetostrictive Actuator) provides the driving force of dispensing. Because the magnetostrictive coefficient of GMM is small, we design a displacement amplifying mechanism with flexure hinges to amplify the output displacement of giant magnetostrictive actuator. The structure and principle of jet dispenser with a displacement amplifying mechanism are presented. In order to obtain the dynamic characteristics of the jet dispenser, its dynamic model and the transfer function block diagram of dispenser between excitation current and output displacement is established. The jet dispenser's dynamic characteristics are simulated though the use of matlab. The amplitude-frequency response characteristics and dynamic characteristics is obtained. The amplifying ratio N (N =l2/l1) of displacement amplifying mechanism is verified, in this paper, the amplifying ratio N is 5.
Starting Page	974
Ending Page	979
File Size	877268
Page Count	6
File Format	PDF
ISBN	9781424446582
DOI	10.1109/ICEPT.2009.5270568
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-10
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic materials Magnetostriction Packaging machines Mathematical model Actuators Microelectronics Frequency Needles Magnetic devices Magnetostrictive devices
Content Type	Text
Resource Type	Article

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