Patent ID: 6665928
Filing Date: 2003-12-23
Classification: H05K,Y10T

Abstract:
A method of mounting a plurality of electric components on a circuit substrate, the method comprising the steps of:providing an electric-component mounting device which is operatively associated with (a) a component-supply table including a displaceable table which is displaceable in a reference direction, and a plurality of component-supply units which are provided on the displaceable table such that respective component-supply portions of the units are arranged along a line parallel to the reference direction, each of the component-supply units including a driven member and a carrier-tape feeding device which feeds, based on the driven member being driven, a carrier tape carrying the electric components at a predetermined component-carry pitch, at a tape-feed pitch equal to a quotient obtained by dividing the component-carry pitch by an integral number, so that the electric components are positioned, one by one, at the component-supply portion of said each unit, (b) a table displacing device which displaces the displaceable table in the reference direction and thereby positions the component-supply portion of said each component-supply unit, at a predetermined component-supply position, (c) at least one drive member which is provided near the component-supply position, and (d) at least one drive device which drives the drive member which in turn drives the driven member of said each component-supply unit, the electric-component mounting device including a plurality of component holders each of which is positioned at a component-receive position opposed to the component-supply position, causing, with the drive device, the drive member to drive the driven member of said each component-supply unit being displaced with the displaceable table in the reference direction, while causing the drive member to follow the driven member being displaced in a first direction parallel to the reference direction, so that at least a portion of at least one of a carrier-tape feeding operation and a tape-feed preparing operation of the carrier-tape feeding device of said each unit is performed while said each unit is displaced with the displaceable table in the reference direction, and causing said each component holder to receive, at the component-receive position opposed to the component-supply position, an electric component from the component-supply portion of said each component-supply unit being positioned at the component-supply position, and mount the electric component on the circuit substrate.