High-speed multi-task system

Details High-speed multi-task system High-speed multi-task system

1999-02-03

2001-12-11

Grant, William (Department: 2121)

Data processing: generic control systems or specific application

Specific application, apparatus or process

C700S001000, C228S004500, C438S106000, C029S739000

Reexamination Certificate

active

06330485

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates to a high-speed multi-task system, particularly to a system which employs an industrial personal computer and a numerical controller for controlling a wire bonding system, with graphical window display and working in a real-time extension environment.
The overall performance of a system, particularly a wire bonding system, lies not only on its mechanical precision but also its electrical control system. A good electrical control system is indispensable to increasing working speed and precision, as well as to maintenance and operation. A wire bonding system is required to be characteristic of not only high speed, high precision, and high yield, but also easy to handle and maintain.
Accompanied with the increase in operating speed, the movement control of a wire bonding system has become more and more import. Conventional control of a wire bonding system is performed by a single chip. Single chip control inevitably makes software upgrade or replacement more difficult and time-consuming. This in turn leads to cost increase and imposes unfavorable limits to hardware maintenance.
U.S. Pat. No. 5,494,207 discloses a wire bonding system which electrically couples an integrated circuit to its associated wiring traces during semiconductor packaging. However, U.S. Pat. No. 5,494,207 did not show any human-machine interface which facilitates the operation of the wire bonding system, nor any numerical controller which controls the movements of the wire bonding system.
U.S. Pat. No. 5,199,629 discloses a wire bonding system which stores bonding data in a memory. The bonding data is transmitted to the wire bonding system through an input/out port as occasion demands. U.S. Pat. No. 5,199,629 failed to teach an integrated control system capable of real-time, multi-task operation.
SUMMARY OF THE INVENTION
According, it is an object of the present invention which provides a high-speed multi-task system with a human-machine interface to facilitate operation and maintenance.
It is another object of the present invention which provides a high-speed multi-task system with integrated control and capable of real-time, multi-task operation.
To achieve the foregoing and other objects, the present invention provides a high-speed multi-task system which comprises an industrial personal computer and a numerical controller. For the purpose of communication and control coordination, a serial communication port RS-232 is connected in between the industrial personal computer and the numerical controller. The industrial personal computer handles the human-machine interface, visual function and main process control, while the numerical controller controls the movements of hardware and input/output.
The industrial personal computer is working in a window-based environment, with graphical display. Although it is usual that a personal computer uses disk operating system (DOS) as its process control system, window-based system is selected under the consideration of its ever-growing popularity. PC window gains its popularity partly because of its user-friendliness, as well as easy to learn. Another consideration is that conventional DOS is limited to 640 K byte system memory. The restrain has made impossible the execution of systems or programs with a much bigger size. And yet the trend of software development is to have bigger and bigger systems to accommodate even more complicated jobs. Although DOS Extender has been developed to eliminate the 640 K byte restrain, human-machine interface is still a weak point to overcome.


REFERENCES:
patent: 4941255 (1990-07-01), Bull
patent: 5684374 (1997-11-01), Chaffee
patent: 5736279 (1998-04-01), Mott et al.
patent: 5906682 (1999-05-01), Bouras et al.
patent: 6112054 (2000-08-01), Kita

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