H - Electricity – 05 – K
Patent
H - Electricity
05
K
356/9
H05K 1/02 (2006.01) H01L 21/60 (2006.01)
Patent
CA 1224277
CHIP TO BOARD CONNECTION Abstract of the Disclosure A configuration is disclosed for attaching leads (15) from several chips (1a-1d) to bus (5a) lines (9a-9m) on a printed circuit board (6). The bus (5a) includes pads 13, each directed toward one of pads (3) on the chip to be connected by arched wires (15). Lines (9a-9l) connect to each end of the board pads (13) and extend generally parallel to the chips (1a-1d) past the sections containing the pads (3). Lines (9a-9l) are displaced alternately toward and away from the chips (1a-1d) at sections containing pads (13) directed toward the chips (1a-1d) or having a part (17) taking a corresponding direction. The pads (13) alternate on opposite sides of each chip (1) to minimize the length of the leads (15) and to allow a central chip pad (3V) for carrying operating voltage (or ground) to connect to the outermost line (9m). This reduces the board space used for a bus (5a) and minimizes the length of wires (15) connecting chips (1a-1d) to a bus (5a).
497771
Barrett B.p.
International Business Machines Corporation
LandOfFree
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