Patent ID: 9666460
Date: 2017-05-30
CPC Classifications: B23K,H01L

Claim:
1. A through-type furnace for substrates, comprising: a furnace with a channel and a transport system for transporting substrates through the channel, wherein the furnace comprises one or more heating zones and one or more cooling zones, the channel is bounded by a base, a front side wall, a rear side wall and a top part, the base contains a plurality of first holes which are connectable to a protective gas source in order to supply protective gas during operation, the front side wall of the channel comprises a longitudinal slit which extends parallel to a passage direction and is bounded by a bottom edge and an upper edge, and extends through the one or more heating zones and the one or more cooling zones, the transport system comprises at least one clamp for transporting the substrates through the channel and the longitudinal slit, and the clamp is movable back and forth along the longitudinal slit of the channel and clamps the substrates outside the furnace.