Patent ID: 6412680
Filing Date: 2002-07-02
Classification: H01L,H05K

Abstract:
A BGA ball mount line, comprising:(a) first and second loading cells; (b) a dual in-line ball mounter comprising first and second ball mount cells, wherein: the first loading cell is configured to transfer a first stream of BGA devices to the first ball mount cell; the second loading cell is configured to transfer a second stream of BGA devices to the second ball mount cell; and the first and second ball mount cells are configured to operate concurrently to mount solder balls onto the first and second streams of BGA devices; (c) a first transfer cell configured to receive the first and second streams of BGA devices from both the first and second ball mount cells of the dual in-line ball mounter; (d) a reflow oven configured to receive the first and second streams of BGA devices from the first transfer cell and perform a single reflow process concurrently on both the first and second streams of BGA devices; (e) a flux cleaner configured to receive the first and second streams of BGA devices from the reflow oven and clean flux concurrently from both the first and second streams of BGA devices; (f) a second transfer cell configured to receive the first and second streams of BGA devices from the flux cleaner; and (g) first and second offloading cells, wherein: the first offloading cell is configured to receive the first stream of BGA devices from the second transfer cell; and the second offloading cell is configured to receive the second stream of BGA devices from the second transfer cell.