TABLE OF CONTENTS Fredrik Mattsson
Ericsson, Sweden
Stefan Kandelid
Ericsson, Sweden
Understanding the assembly process, which typically involves mounting components on a wiring board and soldering their leads to that board
Comparison of surface mount assembly and through-hole assembly
Describe generic assembly issues
Appreciate the influence of assembly technique on the size, manufacturing cost, performance and reliability of the product
Printed wiring board assembly is the process of building functional electronic systems from individual electrical components. The interconnections created in this process are sometimes referred to as the second level of interconnection, where the chip to package connection would be the first, and the board to system would be the third. The assembly process typically involves mounting components on a wiring board and soldering their leads to that board.
Printed wiring board assembly is the process of building functional electronic systems from individual electrical components. The assembly process typically involves mounting components on a wiring board, as illustrated in Figure 17.1, and soldering their leads to that board. The finished electronic system could be anything from a mainframe computer to a greeting card playing Happy Birthday.
The PWB serves several purposes. Apart from providing electrical connections between the different components, the board also allows the heat generated by the components to be transferred to the board, where it can be dissipated. The use of a printed wiring board as the...
