Abstract: A paste Pst applied onto a substrate Pb in a predetermined drawing pattern is imaged to acquire the image (step ST1), the outline G of the paste Pst applied onto the substrate Pb is extracted on the basis of the acquired image (step ST2), and the outline length of the paste Pst is calculated from the extracted outline G of the paste Pst (step ST3). The calculated outline length of the paste Pst is compared with a reference range of the outline length determined depending on the drawing pattern of the paste Pst, it is determined whether the outline length of the paste Pst is in the reference range (steps ST4 to ST6), and the application state of the paste is determined (steps ST7 and ST8).

Abstract: In a seal mechanism which constitutes a port switching portion in a pump mechanism of a paste ejection apparatus that ejects paste, and which prevents leakage of the paste from a seal portion between a plunger block rotating with a plunger and a fixed seal block (between a seal surface and a sliding surface), a housing portion is formed by opposing an outer surface provided for the seal block to an inner surface extending axially from the cylinder block, and a ring-shaped external seal member formed by combination of an O-ring and self-lubricant material such as PTFE is attached into the housing portion. Hereby, it is possible to prevent the paste that has leaked from the seal portion from leaking to the outside of the housing portion by the external seal member.

Abstract: In a seal mechanism which constitutes a port switching portion in a pump mechanism of a paste ejection apparatus that ejects paste, and which prevents leakage of the paste from a seal portion between a plunger block rotating with a plunger and a fixed seal block (between a seal surface and a sliding surface), a housing portion is formed by opposing an outer surface provided for the seal block to an inner surface extending axially from the cylinder block, and a ring-shaped external seal member formed by combination of an O-ring and self-lubricant material such as PTFE is attached into the housing portion. Hereby, it is possible to prevent the paste that has leaked from the seal portion from leaking to the outside of the housing portion by the external seal member.

Abstract: A conductive ball transferring apparatus including: an arranging member having in its top face a plurality of recesses in a predetermined arrangement pattern each capable of receiving one conductive ball therein; a tilting mechanism for tilting the arranging member with respect to a horizontal plane; a speed controller for controlling the moving speeds of the conductive balls that move along the top face of the tilted arranging member in a direction the arranging member has been tilted; and a transferring head for picking up the conductive balls arranged by the arranging member and transferring them onto predetermined positions. With this structure, the moving speeds of the conductive balls are stabilized and the conductive balls are arranged into the recesses quickly without fail, and thereby the transferring head can pick up these conductive balls onto predetermined positions promptly.

Abstract: In a mounting apparatus for mounting conductive ball where a conductive ball 2 is picked up by vacuum to a suction hole 31a formed in the bottom of a suction head 31 for mounting on a workpiece, a reference wave form that represents the amount of light detected at a light detector 43b when a suction head 31 is sucking a conductive ball 2 rightly in the normal state is compared with a wave form detected at the light detector 43b when actually mounting the conductive ball; also a reference wave form detected at the light detector 43b when there is no conductive ball 2 at all on the suction head 31 is compared with a wave form detected at the light detector 43b after mounting of the conductive ball is finished. Through the above described processing, errors in the light interruption that stem from a tilted suction head 31 and machining errors during processing of suction holes 31 are eliminated, and the existence, or non-existence, of the conductive ball 2 is detected at a high accuracy level.