Wafer transfer device for a semiconductor device fabricating sys

Details Wafer transfer device for a semiconductor device fabricating sys Wafer transfer device for a semiconductor device fabricating sys

1991-12-27

1992-09-15

Spar, Robert J.

Material or article handling

Load carried along a horizontal linear path

Carried via magnetic floating

74 98, 74 8922, 4147445, 901 25, B25J 1800

Patent

active

051471752

ABSTRACT:
A semiconductor wafer transfer device includes a rotary member, a driving member which rotates coaxially with the rotary member, a driven member which is driven by the driving member and a frog leg linkage having a first link with an end fixed to the driving member, a second link with an end fixed to the driven member, a third link having an end pivotally joined to another end of the first link, and a fourth link having an end pivotally joined to the other end of the second link. A wafer support plate is supported on the other ends of the third and fourth links. An auxiliary escape mechanism is provided for moving the frog leg linkage out of its dead point. The mechanism includes a first pulley coaxillary fixed to the rotary member with the driving member, a second pulley rotatably supported on a pivot shaft pivotally joining the first and the third links, and a belt wound around the first and second pulleys. The radius of the first pulley is greater than the center distance between the driving member and the driven member. The diameter of the second pulley is smaller than that of the first pulley.

REFERENCES:
patent: 4730976 (1988-03-01), Davis et al.

Affiliated with

Also associated with

Rating

Wafer transfer device for a semiconductor device fabricating sys does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wafer transfer device for a semiconductor device fabricating sys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wafer transfer device for a semiconductor device fabricating sys will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-732191