Abstract: An object is to provide a substrate conveyance apparatus and a substrate detection device capable of improving flexibility in arrangement layout. The substrate detection device includes a projector 41 for projecting inspection light 40 so as to pass through a predetermined position on a path of a substrate 4 conveyed by conveyance belts 26, a light receiver 42 for receiving the inspection light 40 projected by the projector 41, and a detector (a control device 15) for detecting that the substrate 4 reaches the predetermined position based on a decrease in the amount of received light of the inspection light 40 received by the light receiver 42 when the substrate 4 conveyed by the conveyance belts 26 reaches the predetermined position and a portion of the inspection light 40 is blocked by the substrate 4.

Abstract: In an electronic component mounting system including a plurality of electronic component mounting apparatuses coupled in series, the system mounting an electronic component on a substrate to manufacture a mounted substrate, a substrate carried into a mounting conveyor is temporarily placed in a standby state in a substrate standby area formed by a first transfer conveyor (carry-in conveyor) of one electronic component mounting apparatus and a second transfer conveyor (carry-out conveyor) of another electronic component mounting apparatus positioned upstream of the one electronic component mounting apparatus. This eliminates the waste of time attributable to transfer of substrates and enhances the production efficiency by a compact facility.

Abstract: The inventive electronic component mounting apparatus for mounting an electronic component on a substrate includes a substrate positioning unit for individually positioning a single large-sized substrate or two small-sized substrates carried into a mounting conveyor in respective mounting work positions and a substrate underside support part arranged below the mounting conveyor and including a first underside support part and a second underside support part. It is thus possible to position a single substrate in a mounting work position in case a large-sized substrate is handled and to individually position a plurality of substrates in a plurality of mounting work positions in case a small-sized substrate is handled. This ensures flexible component mounting work on plural types of substrates by a compact facility.