Tray input-output module

Details Tray input-output module Tray input-output module

2001-05-31

2003-05-06

Krizek, Janice L. (Department: 3652)

Material or article handling

Apparatus for moving intersupporting articles into, within,...

Unstacking apparatus

C221S297000, C221S299000

Reexamination Certificate

active

06558110

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a tray input-output module and in particular relates to a tray input-output module, capable of delivering a tray to a transport device and retrieving a tray from a transport device, automatically. Allowing full automation of chip sorter, the tray input-output module is able to save manpower, eliminate human error and elevate production efficiency.
BACKGROUND OF THE INVENTION
While automation has been the target of modern industry in the perpetual quest for efficiency and competitiveness, manual operation exists in certain processes and full automation remains a future goal. Efficiency and competitiveness continue to advance as more automatic processes replace manual operations.
a. Prior art
The chip sorter in the semiconductor industry is being used to illustrate the prior art.
FIG. 1
shows the known chip sorter in the prior art, comprising a platform
10
, a robot arm
11
and a transport device
12
. A wafer is divided into a number of dies
21
and placed on a platform
10
. The main function of the chip sorter is to pick up a die
21
and place it onto a tray
3
. First, an operator sets a tray
3
on one end of transport device
12
, which then carries the tray
3
to a sorter position. Robot arm
11
of chip sorter picks up die
21
on platform
10
and loads it onto tray
3
until the tray
3
is full. The tray
3
is transferred by transport device
12
to a next stop before being removed by another operator.
It is clear from the above description that the chip sorter in the prior art is not capable of automatically delivering tray to transport device and retrieving tray from transport device. Requiring manual work, such operations are less efficient due to additional labor cost.
SUMMARY OF THE INVENTION
Aimed at resolving the above disadvantage, it is the object of the present invention to provide a tray input module, capable of delivering a tray to transport device and retrieving a tray from transport device.
It is another object of the present invention to provide a tray output module, capable of retrieving a tray from transport device.
The following Description and Designation of Drawings are provided in order to help understand the features and content of the present invention.


REFERENCES:
patent: 3342350 (1967-09-01), Seragnoli
patent: 3443706 (1969-05-01), Puhm
patent: 4271980 (1981-06-01), Frieser et al.
patent: 4323169 (1982-04-01), Guigan
patent: 5411363 (1995-05-01), Ishii
patent: 5674047 (1997-10-01), Lapeus et al.

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