| 摘要 |
Disclosed is a printed circuit board (PCB). Provided at a pad of the PCB are at least two soldering profiles that intersect at the center of the pad, thereby making the contact area between a drill bit and the pad relatively small, generating relatively small amount of heat, preventing the drill hole from having a relatively large aperture, and extending the service life of the drill bit. Additionally, the intersection point allows for accurate drilling position of the drill bit. |
