Security circuitry with select line and data line shielding

Details Security circuitry with select line and data line shielding Security circuitry with select line and data line shielding

1993-09-13

1995-12-05

Nimmo, Morris H.

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

257659, 370 6, H05K 900

Patent

active

054731127

ABSTRACT:
A method is used to shield a data line in a first metal layer from electrical probe. A first shielding line is placed directly over the data line. The first shielding line is within a second metal layer which is above the first metal layer. In the preferred embodiment, a second shielding line is placed on a first side of the data line. The second shielding line is in the first metal layer. Also, a third shielding line is placed on a second side of the data line. The third shielding line is also in the first metal layer. Also in the preferred embodiment, the first shielding line, the second shielding line and the third shielding line are all connected to Vss.

REFERENCES:
patent: 3612744 (1971-10-01), Thomas
patent: 4513266 (1985-04-01), Ishihara
patent: 4658334 (1987-04-01), McSparrow et al.
patent: 4845311 (1989-07-01), Schreiber et al.
patent: 4853894 (1989-08-01), Yamanaka et al.
patent: 4885431 (1989-12-01), Kawakami et al.
patent: 5166772 (1992-11-01), Soldier et al.
patent: 5177324 (1993-01-01), Carr et al.
patent: 5210523 (1993-05-01), Tipping
patent: 5223806 (1993-06-01), Curtis et al.
patent: 5260128 (1993-11-01), Ishii et al.
patent: 5270488 (1993-12-01), Ono et al.
patent: 5270493 (1993-12-01), Inoue et al.
patent: 5288949 (1994-02-01), Crafts

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