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ferroelectric random access chip

A random access and chip technology, applied in circuits, electrical components, electrical solid devices, etc., to reduce production costs and simplify assembly processes

Active Publication Date: 2011-12-28
徐海生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Later, there appeared PZT[Pb(Zr,Ti)O 3 ] Ferroelectric random memory chips with dielectrics, such as mobile phone chips with 1T / 1C architectures from companies such as Japan’s Fujitsu and South Korea’s Samsung, and then the toxicity of lead (Pb) in the PZT dielectric and PZT must be at high temperatures (usually above 1000 ° C) Processing limits its further development

Method used

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Embodiment Construction

[0026] see figure 1 As shown, it is a structural diagram of a chip 10 with a single memory unit according to the first embodiment of the present invention, which includes a base 11 and a memory unit 12 formed on the base 11 . In this embodiment, the chip has a single memory unit, but it is not used to limit the present invention, such as figure 2 As shown, in other embodiments the chip 10' of the present invention may have several memory cells 12'.

[0027] see image 3 As shown, the memory unit 12 of the chip of the present invention includes the lowest bottom electrode 21 , a ferroelectric polymer 22 formed on the bottom electrode 21 , and an upper electrode 23 formed on the ferroelectric polymer 22 .

[0028] see Figure 4 Shown, it shows the chip manufacturing method flow chart of the present invention, and this method comprises the following steps:

[0029] Step 41: First, coat a conductive polymer material on a smooth and flat plastic substrate to form a bottom elec...

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Abstract

The present invention proposes a printable all-polymer ferroelectric random access chip, which uses conductive polymers as electrodes and contacts to assemble a polymer-based information memory, and its "circuit" can be directly "printed" on the polymer On the thin layer of material, it gets rid of the vacuum process and etching technology that must be used in the traditional inorganic transistor manufacturing, greatly simplifies the assembly process, can carry out large-scale continuous production, and reduces production costs.

Description

technical field [0001] The invention relates to a random access chip, in particular to a printable full polymer ferroelectric random access chip. Background technique [0002] Traditional information storage systems store data in circuits made of single crystal silicon, various metals, insulating materials, etc., and the circuits form a two-dimensional array on a silicon chip. Using photolithography technology, through many steps such as exposure and selective etching, the pattern designed on the mask plate is transferred to the silicon wafer. There are many steps, the process is complicated, and the processing time is long. [0003] With the development of memory system technology, the application of solution-based deposition and direct printing technology on functional materials provides a new possibility to fabricate electronic devices, such as organic field-effect transistors (FETs), which can be applied to low-cost , large-area flexible electronic devices. Therefore,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/115
Inventor 徐海生
Owner 徐海生