Patent ID: 7114245

Claim:
An electronic component holding head for holding an electronic component to be mounted to a substrate, comprising: a main electronic component holding unit said main electronic component holding unit having a vacuum chuck provided so as to face the surface of the electronic component to be held by vacuum chucking holes of said vacuum chuck, so that the electronic component is held by vacuum chucking holes to said main electronic component holding unit; and a light path part provided in the main electronic component holding unit, the light path part being configured to guide light shined onto a positioning mark formed at a terminal part of the electronic component to correct a position offset between the electronic component and a substrate to which the electronic component is to be mounted, wherein said vacuum chuck hold the electronic component at a position which is on straight lines substantially parallel to more than two edges of the electronic component respectively and substantially perpendicular to the positioning mark of the electronic component, said vacuum chucking holes partially covering the electronic component, being located in a vicinity of the positioning mark and avoiding the positioning mark so as to hold substantially all portions of the electronic component in engagement with said main electronic equipment holding unit.