A Methodology for an FPGA Implementation of a Programmable Logic Controller to Control an Atomic Layer Deposition System

In this work, we present an industrial cold walled Atomic Layer Deposition (ALD) system, which can be controlled by either a traditional programmable logic controller (PLC) system or field-programmable gate array (FPGA) prototyping board. This work presents FPGA that takes ladder diagram (LD) control for PLC and converts to Verilog HDL programs such the board is used real application. We explore approach since implementation of LD could significantly reduce cost implementing these controllers with other potential advantages as improved granularity timing from milliseconds nanoseconds, additional available pins inputs outputs far exceeding microprocessors, lower power consumption control. provide details descriptions our (ALD), its implementation, software flow convert LDs HDL, prototype design replace existing electronic controller. show how LD-Verilog converter in conjunction FPGAs matches demonstrate some benefits using FPGA.