Introduction This book is a training material designated by the Printed Circuit Technology Department of the Production Technology Credit Branch of the Chinese Institute of Electronics. The book cons...

Text Take the printed circuit board as the mounting substrate, install electronic and electromechanical components, devices or other printed circuit board components on it, and use the printed circu...

Introduction "Printed Circuit Board Plating" carries out the technical requirements and specifications of mechanical processing, etching process, screen printing, hot air leveling related to printed...

Development process Since the printed circuit board is not a general terminal product, the definition of the name is a bit confusing. For example, the motherboard for personal computers is called th...

Introduction The application program interface is: "The code used by the ‘Operating system’ or ‘library’ for application calls." Its main purpose is to allow application developers to call a set of...

Development History Applied Materials started business in China in 1984 and became the first foreign-funded semiconductor production equipment supplier to enter China. In 2001, Applied Materials esta...

Definition of terms In the National Standard of the People’s Republic of China "Quality Management System Fundamentals and Terminology" GB/T19000—2008/ISO9000: 2005 (instead of GB/T19000—2000), Secti...

Steps The first step is to use the editing program to send the compiled source program to the computer in a certain writing format. The editing program will add or add to the source program according...

Development History In 1967, Applied Materials was established in Mountain View, USA. In 1979, Applied Materials Japan Branch was established and officially entered the Asian market. In 1981, Applied...

refers to the time it takes for the hard disk to ban the promotion (automatic filtering of advertisements) on the disk from moving the read-write head to the designated track to find the corresponding...

Definition The time required from the effective address to the stable appearance of the read data on the data bus. Source The third edition of "Computer Science and Technology Terms".

Mean recurrent time (mean recurrent time) The expected value of the time that a Markov chain returns to a given state i after it departs. Let i be a recurrent state, then {only, n=1, 2 , 3, w) gives t...

Measurement method When the visitor makes the first request to the Web server, a session is started for this visitor. From this point on, when the customer browses the site, each request will be rec...

Introduction "Time average" is a proper term in astronomy. From the Chinese translation of astronomy proper nouns approved and released by the China Astronomical Term Review Committee, the copyright...

History The past of radio in ChinaIn the 1960s and 1970s, most people The main way to receive information from the outside world is that people happily gather around the radio to listen to radio prog...