Printed circuit board

Details Printed circuit board Printed circuit board

1989-01-18

1991-04-23

Picard, Leo P.

Electricity: electrical systems and devices

Miscellaneous

361409, 174261, H05K 710

Patent

active

050104489

ABSTRACT:
A printed circuit board has one or more conductor-deleted portions formed in the lands of a conductor pattern printed on an insulating substrate. The conductor-deleted portions may be one or more slits extending radially from a center hole of each land, one or more holes, or one or more notches. Preferably, the conductor-deleted portions are positioned to be in the direction of alignment of the lands. The conductor-deleted portions reduce the amount of solder adhering to the lands and prevent solder bridges between adjacent lands from forming.

REFERENCES:
patent: 2938068 (1960-05-01), Silverschotz
patent: 3567844 (1971-03-01), Krcmar

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