图的上方展示了掺杂后的晶格结构,其中蓝色点表示半导体原子,深蓝点表示掺杂原子。掺杂原子(如硼原子)提供四个电子与半导体原子组成共价键,但是它实际上只有三个电子,因此会产生一个空穴,这个多余的空穴跑掉了,并在晶格中形成局部负电荷(蓝色标记),也就是掺杂原子的位置。 三价元素只有三个价电子,当它与硅原子的四个价电子形成共价键时,会缺少一个电子,形成一个空穴
Basics of Electronics multiple choice objective questions and answers part4 Basics of Electronics multiple choice objective questions and answers part5 Basics of Electronics multiple choice objective questions and answers part6 Basics of Electronics multiple choice objective questions and answers part7 Basics...
This book contains short definitions and descriptions followed by examination material for Digital Electronics. The topics included are: Analog and Digital Signals Number Systems Combinational Logic Circuits Multiplexer, Demultiplexer, Encoder, Decoder Binary Arithmetic Digital Logic Families Different Types of...
Digital to Analog Conversion Method : Numerous implementation methods exist for Digital to Analog (D/A) converters. We cover 4 basic methods of 'Using Resistors', 'Using Capacitors', 'Using Current' and 'Oversampling Method'.
instance. It’s undeniable that digital radios are more convenient than their analog counterparts. The same applies to electronics, where analog designs are considered to be more challenging, particularly if a PCB designer has always been dealing with the ‘1s’ and ‘0s’ of the digital world...
Two of the most common types of scopes are DSOs, digital storage oscilloscopes, and MSOs, mixed signal oscilloscopes. DSOs process the analog input of a circuit through an attenuator first – to scale the signal up or down for it to fit into the bandwidth covered – then digitize it, ...
Analog to Digital Conversion Method : There are several methods for Analog to Digital (A/D) conversion. We cover the examples of 'Flash Conversion', 'Successive Approximation Conversion' and 'Delta-Encoded Conversion'.
Figure 8. Illustration of direct connection charging and Analog Devices Smart Power Selector™technology. The direct-connection architecture is the simplest and most economical to implement. Its main drawback surfaces if the battery is deeply discharged and then external power is applied. In that ...
ARDUINO MicroPython 4.3.2.STM32Cube firmware↑ STM32Cubeis a set of tools and embedded software bricks available free of charge to enable fast and easy development on the STM32 platform which simplifies and speeds up developers’ work.
Qualcomm: Leading provider of advanced semiconductors manufacturing technology. Hynix(Formerly Hyundai Electronics): Manufacturer and supplier of dynamic random access memory (‘DRAM’) chips and flash memory chips. Renesas Technology: Microcomputers, logic and analog devices, discrete devices and memory pro...