Patent ID: 8002164

Claim:
A mold plate to parking location interface comprising: a fill head with an o-ring, the fill head for dispensing solder bumps into cavities on the mold plate; a parking plate for locating the fill head while the fill head is not depositing solder on the mold plate; and a platform underneath a first plate and a second plate for relatively moving the fill head from the first plate to the second plate by stepping down such that the o-ring decompresses as it crosses from the first plate to the second plate; wherein the first plate is either the mold plate or the parking plate; wherein the second plate is the other of said mold plate or parking plate wherein the fill head moves in only one direction; wherein the stepping down comprises moving from a higher elevation to a lower elevation as the fill head relatively moves from the first plate to the second plate; and wherein the stepping down is enabled by moving the first plate relative to the second plate such that the first plate where the fill head is positioned is at a higher elevation than the second plate before relatively moving the fill head to the second plate.