Patent ID: 8309862

Claim:
A printed circuit board mounted with a dual inline lead-type part, comprising: a plurality of soldering lands for connecting respective leads of the dual inline lead-type part by jet-type soldering, the soldering lands and respective leads longitudinally arranged in two rows in parallel with a travelling direction of the jet-type soldering; and a solder-drawing land for absorbing excess solder during soldering, which is arranged at a position behind rearmost soldering lands in the traveling direction of jet-type soldering, wherein the solder-drawing land has a square outer shape and a slit in a bent shape therein, one corner of the square outer shape is located near the rearmost soldering lands and arranged between the rearmost leads, while a bent portion of the slit is arranged near the one corner, the solder-drawing land having a square shape with a surface area substantially equal to a surface area obtained by multiplying a length of two laterally arranged soldering lands by a length of two longitudinally arranged adjacent soldering lands, and the outline of the square shape is arranged so as to be inclined 45 degrees, to the travelling direction, and the solder-drawing land includes an anterior solder-drawing portion and a posterior solder-drawing portion that is obtained by dividing the solder-drawing land by the slit into a front and a rear portions, the posterior solder-drawing portion having a surface area larger than a surface area of the anterior solder drawing portion, ends of the slit provided with connecting portions for connecting the anterior solder drawing portion with the posterior solder drawing portion, and a width of the anterior solder drawing portion and the connecting portions is the same.