Patent ID: 6840425

Claim:
A system comprising: a scavenging blade; a printed wiring board receiving portion; and a movement mechanism adapted to move the scavenging blade and printed wiring board receiving portion relative to each other wherein: the system is adapted to remove fill material which accumulates on the blade during the relative movement of the scavenging bladed and printed wiring board; the system comprises a printed wiring board positioned on the printed wiring board receiving portion, the printed wiring board having both first and second substantially planar surfaces that are substantially parallel to each other and at least one filled hole extending from the first surface to the second surface; and the scavenging blade is positioned adjacent to the first surface, between a first end and a second end of the printed wiring board, and divides the first surface into a first area and second area, wherein the first action comprises at least one hole containing fill material extending outward from the printed wiring board for a distance substantially greater than the distance separating the scavenging blade from the printed wiring board, and the second area comprises a plurality of holes containing fill material, none of which have fill material extending outward from the printed wiring board for a distance substantially greater than the distance separating the scavenging blade from the printed wiring board.