Electricity: electrical systems and devices – Miscellaneous
Patent
1990-06-22
1991-07-23
Picard, Leo P.
Electricity: electrical systems and devices
Miscellaneous
G11C 1100
Patent
active
050348558
ABSTRACT:
On a printed circuit board, according to the present invention, IC packages are arranged in a matrix layout. The IC packages are soldered to the printed circuit board via their lead wires provided on the package sides along row and column lines of the matrix chip components are soldered to the printed circuit board, under each of the IC packages along lines angularly deviated from the row lines or the column lines of the matrix. Thus, the soldered portion of a chip component behind its adjacent chip component can be visually inspected along a view line parallel to the row line or the column line on a highly integrated printed circuit board.
REFERENCES:
patent: 4739444 (1988-04-01), Zushi et al.
patent: 4754366 (1988-06-01), Hernandez
Fujitsu Limited
Picard Leo P.
Sparks Donald
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