Patent ID: 6938335
Filing Date: 2005-09-06
Classification: H01L,H05K,Y10T

Abstract:
1. An electronic component mounting method comprising: recognizing a first reference mark on a printed circuit board having thereon at least one first electrical connecting portion, with a position of said at least one first electrical connecting portion being defined based on said first reference mark, and with said first reference mark and said at least one first electrical connecting portion being simultaneously formed on said printed circuit board via a mask; recognizing a second reference mark on a first electronic component having thereon at least one second electrical connecting portion, with a position of said at least one second electrical connecting portion being defined based on said second reference mark, and with said second reference mark and said at least one second electrical connecting portion being simultaneously formed on said first electronic component via a mask; determining a shift between a position of said printed circuit board and a position of said first electronic component based on the recognition of said first and second reference marks; correcting the shift between the position of said printed circuit board and the position of said first electronic component, and mounting said first electronic component to said printed circuit board; recognizing a third reference mark on a second electronic component having thereon at least one third electrical connecting portion, with a position of said at least one third electrical connecting portion being defined based on said third reference mark, and with said third reference mark and said at least one third electrical connecting portion being simultaneously formed on said second electronic component via a mask; recognizing a fourth reference mark on said first electronic component, wherein said first electronic component also has thereon at least one fourth electrical connecting portion, with a position of said at least one fourth electrical connecting portion being defined based on said fourth reference mark, and with said fourth reference mark and said at least one fourth electrical connecting portion being simultaneously formed on said first electronic component via a mask; determining a shift between a position of said second electronic component and a position of said first electronic component based on the recognition of said third and fourth reference marks; and correcting the shift between the position of said second electronic component and the position of said first electronic component, and mounting said second electronic component to said first electronic component.