Patent ID: 7387701
Filing Date: 2008-06-17
Classification: B08B,H01L

Abstract:
1. An etchant fume exhaust apparatus installed inside an etching system, the etching system including an etchant supply apparatus, wherein the etchant fume exhaust apparatus comprises: an exhaust hole that provides a passage to discharge gaseous etchant generated from the etchant supply apparatus in the etching system; an exhaust plate disposed to collect liquefied etchant from the exhaust hole and disposed under the bottom surface of the exhaust hole; a support part that fixes the exhaust plate to the exhaust hole and extends into the inside of the exhaust hole, the exhaust plate suspended from the exhaust hole by the support part, the support part disposed such that substantially all of an entire outer surface of the support part is exposed to the gaseous etchant; and an exhaust line connected with the exhaust plate and through which the liquefied etchant in the exhaust plate is removed from the exhaust plate, wherein a width of an opening formed by a first end of an upper surface of the exhaust plate most proximate to the exhaust hole is larger than a width of the support part most distal from the exhaust hole.