Memory device

Abstract

Abstract PURPOSE:To increase the capacity by using PK connected already, by connecting a package (PK) of less capacity to the 1st connection section and connecting an increasing PK to the 2nd connection section. CONSTITUTION:The 1st connecting sections 1, 3 and the 2nd connecting sections 2,4 connecting memory pakage (PK), two types, are provided, and two types of different capacity of PKs (1M-byte, 2M-byte) are prepared. The PK of 1M or 2M- byte is connected to the connections 1, 3 and 1M-byte PK only is connected to the connections 2 and 4, and the sum of the capacities of PKs connected to the connections 1 and 2 is up to 2M-byte maximum. This is the same for the connections 3 and 4. First, small capacity PK is connected to the connections of the 1st connections 1, 3 and in case of increasing the capacity only connect PK to the 2nd connections 2, 4.

Inventors

• 👤 Mitsuhiro Yamaga
• 👤 Koji Nakamura
• 👤 Katsuhiko Aoki
• 👤 Masamitsu Kobayashi

Bibliographic Details