公开(公告)号：DE1499711A1

公开(公告)日：1970-07-30

申请号：DE1499711

申请日：1966-08-02

Applicant: IBM

Inventor： HARRY PALMATEER PAUL ,  DAVID PRICER WILBUR

IPC: G11C17/04

Abstract: 1,090,939. Capacitor read-only stores. INTERNATIONALE BUSINESS MACHINES CORPORATION. July 20, 1966 [Aug. 10, 1965], No. 32505/66. Heading G4A. In a capacitor read-only store, the various planes are bonded together to form a single laminated structure. As shown (Fig. 2), a capacitor read-only store comprises a drive plane consisting of a plurality of drive lines 26 on a dielectric base 28, an information plane consisting of a dielectric base 34 with selected areas 33 of a conductive material removed and a sense plane consisting of sense lines 38 (arranged orthogonally to the lines 26) on a dielectric base 42. Further information and sense planes are symmetrically provided on the other side of the drive lines 26, the pattern of holes 33 1 in the lower information plane being the mirror image of those in the upper plane. Ground planes 44, 46 are also provided together with a land plane 50 for making selective electrical connections. Between the various planes there are provided partially cured pre-impregnated epoxy-fibre gass laminating boards 54, 56, 58, 60, 62, 64 which, on further heating and application of pressure, bond the layers into a permanent laminated structure. The array shown may be bonded to a similar array 14. The external circuitry (Fig 8) includes a plurality of differential amplifiers 41 each connected to a pair of corresponding sense lines 38, 38 1 . A plurality of such planes may be formed on a single card (Fig. 5, not shown) and input/output areas connected to pluggable connectors may be provided on a base card (Fig. 6, not shown).