information storage element

Abstract

Abstract PURPOSE:To provide an auxiliary power source built-in memory device having long life and compact size by incorporating all solid state secondary batteries in a resin package. CONSTITUTION:A solid state unit cell 1 measuring 5X5X0.8mm. and a semiconductor memory device chip 2 are fixed on the both sides of a lead frame 3, and electrodes 5 for connecting unit cells in series are arranged, and they are incorporated in a resin package 6 which also serves as a battery container. A unit cell pellet consists of a positive layer 7 comprising positive mix of the mixture of Cu0.6V2O5 powder and Cu ion conductive electrolyte of RbCu4I1.5Cl3.5 powder and graphite, an electrolyte layer 8 comprising Cu ion conductive solid electrolyte of RbCu4I1.5Cl3.5, and a negative layer 9 comprising negative mix of the mixture of Cu2S powder, Cu powder, and Cu ion conductive solid electrolyte RbCu4I1.5Cl3.5 powder. By packaging together memory device and batteries, volatile memory device which loses memory stored when it is separated from power source can be converted into vertual nonvolatile memory device.

Inventors

• 👤 Tadashi Tonomura
• 👤 外「村」　正
• 👤 Satoshi Sekido
• 👤 聰 関戸

Bibliographic Details