| 摘要 |
The through-bore contact system has the circuit board (2) supported by a frame (3) so that the circuit board bores are free on either side, with a needle used to dispense a contact paste plug into each bore. The needle is then removed and replaced by a suction pin of the dispenser, for removing the excess contact paste, while leaving the sides of the bore coated with the contact paste. The dispenser needle and the suction pin may be combined with a drilling head, allowing the through-bore contacts to be provided simultaneous with the machining of the circuit board for providing the bores. |
