Emerging Memories: Technologies and Trends

Betty Prince

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Emerging Memories: Technologies and Trends attempts to provide background and a description of the basic technology, function and properties of emerging as well as discussing potentially suitable applications.

With the many recent announcements of emerging memory technology development from large semiconductor companies, and with several start-up companies pursuing emerging memory products, there is considerable interest in the new technology.

Semiconductor memories have been around now for 30 years. They have increased fourfold in density about every three years from less than 1K-bit in 1972 to more than 1G-bit in 2002. Applications which historically permitted the technology to trade-off speed and power, now demand both high speed and low power. While the price has dropped from one dollar per 100 bits too less than one dollar per 100 megabits, the production technology has become so complex and expensive that the average multi billion-dollar company can no longer afford it. The circuits have reached geometries so small that semiconductor theories are being altered and fundamental limits are foreseen. While there are undoubtedly many years of life left in the old memory technology, the world is currently taking a hard look at whether there might be a better way.

This book explores a range of new memory products and technologies. The concept for some of these memories has been around for years. A few completely new. Some involve materials that have been in volume production in other type of devices for some time. Ferro-electrics, for example, have been used in capacitors for more than 30 years. In addition to looking at using known devices and materials in novel ways, there are new technologies being investigated such as DNA memories, light memories, molecular memories, and carbon nanotube memories, as well as the new polymer memories which hold the potential for the significant manufacturing reduction.

Emerging Memories: Technologies and Trends is a useful reference for the professional engineer in the semiconductor industry

Contents

Acknowledgments. About the author. Introduction. 1. Ferroelectric RAMs. 2. Magnetic RAMs. 3. Non-Volatiles After Floating Gate. 4. After DRAM - Some Novel Contenders. 5. Memories after Silicon. Index.

商品描述(中文翻譯)

《新興記憶體:技術與趨勢》試圖提供新興記憶體的基本技術、功能和特性的背景描述,並討論可能適用的應用。隨著大型半導體公司最近宣布新興記憶體技術的發展,以及幾家初創公司追求新興記憶體產品,對這項新技術引起了相當大的興趣。半導體記憶體已經存在了30年。從1972年的不到1K位元到2002年的超過1G位元,其密度每三年增加四倍。歷史上允許技術在速度和功耗之間取得平衡的應用現在要求高速和低功耗。雖然價格從每100位元一美元降至每100兆位元不到一美元,但生產技術變得如此複雜和昂貴,以至於平均數十億美元的公司無法負擔。電路的幾何尺寸變得如此小,以至於半導體理論正在改變,並且預見到了基本限制。儘管舊的記憶體技術還有許多年的壽命,但現在世界正在嚴肅地考慮是否有更好的方法。本書探討了一系列新的記憶體產品和技術。其中一些記憶體的概念已經存在多年,有一些是全新的。其中一些涉及在其他類型的設備中已經大量生產的材料。例如,鐵電材料已經在電容器中使用了30多年。除了探索如何以新穎的方式使用已知的設備和材料外,還在研究新的技術,如DNA記憶體、光記憶體、分子記憶體和碳納米管記憶體,以及具有顯著製造成本降低潛力的新型聚合物記憶體。《新興記憶體:技術與趨勢》對半導體行業的專業工程師來說是一本有用的參考書。