Printed circuit board having a marker trace for component alignment
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorShinichi Kusakawa
Life of this patent
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Abstract
A printed circuit board 100 comprises a substrate 102 and a plurality of conductive traces 104-116 formed on the surface of the substrate 102. The conductive traces 104-116 include a marker trace 104 which is formed through the same process and of the same material as the other conductive traces 106-116 used for electrical signal transmission. The marker trace 104 may be so formed as to surround a desired footprint FP1 of a double-sided adhesive sheet 140 to be bonded on the printed circuit board 100. In this manner, a marker, such as the marker trace 104, may be formed without any need for additional and/or dedicated marker-forming process.
Claims12
A printed circuit board comprising:
- a substrate;
- a plurality of conductive traces formed on the surface of said substrate for electrical signal transmission;
- and
- a marker trace formed on the surface of said substrate for indicating at least a part of a desired footprint of a member to be mounted on the surface of said printed circuit board;
- said marker trace being formed of the same material as said conductive traces and having a reference edge defined such that registration of the member to said desired footprint is achieved by aligning an outer edge of the member with said reference edge of said marker trace.
Dependencies are inferred from the claim text.