Patent ID: 7905960

Claim:
An apparatus for manufacturing a substrate, comprising: a transferring chamber having first and second long sides and first and second short sides under vacuum; a first process chamber connected to the first long side of the transferring chamber; a second process chamber connected to the second long side of the transferring chamber, wherein the first and second process chambers are at different heights; at least one load-lock chamber connected to the transferring chamber adjacent at least one of the first and second long sides or the first and second short sides of the transferring chamber; a transferring chamber robot under vacuum having a straight-line motion to move in the transferring chamber to transfer a substrate, wherein the transferring chamber robot is configured to move in a first direction parallel to the long sides in a straight line-motion along a horizontal plane, wherein the transferring chamber robot is configured to move in a second direction perpendicular to the first direction along a moving rail in a straight line-motion along a horizontal plane, wherein the transferring chamber robot is configured to move in a third direction perpendicular to a horizontal plane in a straight line-motion, wherein the transferring chamber robot includes upper and lower robot arms having different heights from each other, wherein the upper and lower robot arms include upper and lower supporting means, respectively, wherein the upper robot arm includes first and second moving rails on the upper supporting means, and first and second sub-robot arms adapted to move in a straight line-motion along the first and second moving rails, respectively, wherein the lower robot arm includes third and fourth moving rails on the lower supporting means, and third and fourth sub-robot arms adapted to move in a straight line-motion along the third and fourth moving rails, respectively, wherein the first moving rail is arranged at an outer portion of the upper supporting means and the second moving rail is arranged at an inner portion of the upper supporting means such that the first sub-robot arm surrounds the second sub-robot arm, wherein the third moving rail is arranged at an outer portion of the lower supporting means and the fourth moving rail is arranged at an inner portion of the lower supporting means such that the third sub-robot arm surrounds the fourth sub-robot arm, wherein the upper robot arm extends in a horizontal direction to access the first process chamber and the lower robot arm extends in an opposite horizontal direction to access the second process chamber, a horizontal moving axis extended along the first direction and connected to the transferring chamber robot; and a vertical moving axis connected in perpendicular to the horizontal moving axis and connected to the transferring chamber robot.