本出版物提供了对JESD77-B《分立半导体和光电子器件的术语、定义和字母符号》中定义的字母符号和相应术语的快速参考；JESD99-A，微电子设备的术语、定义和字母符号；JESD100-B，微型计算机、微处理器和存储器集成电路的术语、定义和字母符号。这些符号的统一使用旨在简化数据表的解释。这些符号与数据表和其他规范中的额定值和特性有关。 还包括一些用于代替符号的缩写。新增的附录B有助于确定应使用何种符号，并按术语进行组织，而出版物的主体部分按符号或缩写进行组织，与之前的版本一样。这个版本包含一些小的修改。

This publication provides a quick reference to the letter symbols and corresponding terms that are defined in JESD77-B, Terms, Definitions, and Letter Symbols for Discrete Semiconductor and Optoelectronic Devices; JESD99-A, Terms, Definitions, and Letter Symbols for Microelectronic Devices, and JESD100-B, Terms, Definitions, and Letter Symbols for Microcomputers, Microprocessors, and Memory Integrated Circuits. It is intended to simplify interpretation of data sheets and specifications and to promote the uniform use of these symbols. The symbols relate to ratings and characteristics found in data sheets and other specifications. Some abbreviations used in lieu of symbols are also included. The newly added Annex B is provided as an aid to determining what symbol should be used and is organized by term, whereas the main body of the publication is organized by symbol or abbreviation as in previous versions. This version contains minor revisions.