V2EX field-effect

Field-effect

释义 Definition

field-effect(场效应):指用电场来改变材料(常见为半导体)内部载流子分布,从而控制导电性/电流的效应;最常见的语境是场效应晶体管(FET)中,通过栅极电压产生的电场来控制沟道电流。该词在工程语境里通常作定语,如 field-effect transistor

发音 Pronunciation

/fild fekt/

例句 Examples

A MOSFET is a field-effect transistor.
MOSFET 是一种场效应晶体管。

In a field-effect device, the gate voltage creates an electric field that modulates the channel conductivity without requiring significant gate current.
在场效应器件中,栅极电压产生的电场会调制沟道的导电性,而不需要显著的栅极电流。

词源 Etymology

field(场,尤指电场/磁场) + effect(效应) 组成的复合词。该术语在20世纪半导体器件发展中被广泛使用,用来强调“用电场来控制导电”这一与双极型器件(主要依赖电流注入控制)不同的工作机理。

相关词 Related Words

文学与著作中的用例 Literary Works

  • The Art of Electronics(Horowitz & Hill)在讲解MOSFET与放大电路时频繁使用 field-effect
  • Microelectronic Circuits(Sedra/Smith)在器件与电路章节中系统讨论场效应晶体管与场效应机理。
  • Semiconductor Device Fundamentals(Robert F. Pierret)在半导体物理与器件原理部分描述场效应与沟道调制。
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