12-02-2012, 10:07 PM
13-02-2012, 10:24 AM
to get information about the topic plastic memory seminar full report,ppt and related topic please refer the link bellow
https://seminarproject.net/Thread-plastic-memory https://seminarproject.net/Thread-plastic-memory?page=4 https://seminarproject.net/Thread-plastic-memory?page=2
16-01-2013, 08:41 PM
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08-06-2013, 12:56 PM
A SEMINAR REPORT ON PLASTIC MEMORY PLASTIC.rtf (Size: 6.11 MB / Downloads: 243) ABSTRACT A series of advances in organic memory technology is demonstrated that enable an entirely new low-cost memory technology. Researchers incorporate these advances with the one of the most flexible material PLASTIC. This novel memory technology can be utilized in a three-dimensional onetime- programmable storage array. Without the prohibitive costs of silicon processing, this memory is capable of setting cost points several orders of magnitude lower than their inorganic counterparts. They have also successfully integrated this technology onto flexible plastic substrates. Combined with stacking, these vertical memory elements can create ROM densities denser than many inorganic memories, at a fraction of the cost. A conducting plastic has the potential to store a mega bit of data in a millimeter- square device-10 times denser than current magnetic memories. This device is cheap and fast, but cannot be rewritten, so would only be suitable for permanent storage. The device sandwiches a blob of a conducting polymer called PEDOT and a silicon diode between perpendicular wires. The key to the new technology was discovered by passing high current through PEDOT (Polyethylenedioxythiophene) which turns it into an insulator, rather like blowing a fuse .The polymer has two possible states- conductor and insulator, that form the one and zero, necessary to store digital data. INTRODUCTION The idea of ubiquitous computing is extremely attractive. The idea of electronics integrated into everyday items is extremely attractive, but currently well beyond the cost structure inherent to silicon chips. From integrated displays to radio-frequency identification, silicon solutions remain economically out of reach due to high material costs, processing costs, and the need for clean-room fabrication. In essence, a significant paradigm shift is necessary to enable electronics to be cheaply built in to everyday items. In recent years, there has been great interest in organic semiconductor devices, driven by their potential use in low-cost flexible displays and disposable electronics applications. As a whole, these materials allow electronics to be economically feasible for niches out of reach for their silicon-based counterparts. In particular, there exists great potential in soluble organic semiconductors. OVERVIEW OF PLASTIC MEMORY Plastic memory is one kind of organic semiconductor device. Imagine a scenario where the memory stored in your digital camera or personal digital assistant is partially based on one of the most flexible materials made by man: PLASTIC. Scientists at HP Labs and Princeton University are excited a new memory technology that could store more data and cost less than traditional silicon-based chips for mobile devices such as handheld computers, cell phones and MP3 players. A conducting plastic has been used to create a new memory technology with the potential to store a megabit of data in a millimeter-square device - 10 times denser than current magnetic memories. The device should also be cheap and fast, but cannot be rewritten, so would only be suitable for permanent storage. INTRODUCTION TO COMPUTER MEMORY Computer memory refers to devices that are used to store data or programs (sequences of instructions) on a temporary or permanent basis for use in an electronic digital computer. Computers represent information in binary code, written as sequences of 0s and 1s. Each binary digit (or "bit") may be stored by any physical system that can be in either of two stable states, to represent 0 and 1. Such a system is called bistable. This could be an on-off switch, an electrical capacitor that can store or lose a charge, a magnet with its polarity up or down RANDOM ACCESS MEMORY (RAM) Random-access memory (RAM) is a form of computer data storage. Today, it takes the form of integrated circuits that allow stored data to be accessed in any order in a constant time, regardless of its physical location and whether it is related to the previous piece of data. RAM is often associated with volatile types of memory (such as DRAM memory modules), where its stored information is lost if the power is removed. The first RAM modules to come into the market were created in 1951 and were sold until the late 1960s and early 1970s. |
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