GESP TECH -TRUSTWORTHY ONE-STOP PCB SERVICES INDISPENSABLE DESIGN FOR TEST
Introduction
An essential part of the PCB manufacturing process. That means the inspection of the assembled PCBs according to functionality and manufacturability. This inspection method becomes: Design for Test (DFT). which is actually a series of inspections after the PCB has been reflowed or wave soldered or reflowed + wave soldered. such as: X-ray, AOI, ICT, FCT inspection. DFT is to check for problems and solve them during the manufacturing process. PCB Design for Test (DFT) is a method to optimize the board. and layout for operational and functional testing. Functional testing method. PCB Design for Test (DFT) identifies any shorted, open. misplaced components or faulty components.
BENEFITS OF DESIGN FOR TEST
The entire fabrication technology has now undergone a fundamental transformation. Thousands of components and solder connections can be found on some PCB designs. particularly on HDI boards. When deciding on proper test places on a dense board. the space constraint becomes a challenge. Fabricators and designers would have a nightmare if any component or connector hampered the design. DFT engineers and product developers devise a set of testing procedures. to identify inaccuracies and generate a high-quality, functional circuit board.Design for Test (DFT) can effectively
- The accuracy of the circuit board design
- Circuit board manufacturing for problems & defects
- All components, chips and connections on the PCB board are working well
PARAMETERS OF DESIGN FOR TEST
Test points
Test point insertion is a critical approach for increasing DFT test efficiency. The location of the test point is determined by the number of components it can evaluate. By establishing correct power and ground test locations, signal integrity concerns can be minimized.
Test Alignment
You are able to place test points on the analog sensitive alignment. These test points are compatible with oscilloscopes and signal generators. used to comprehend the signal’s behavior.
LED
LEDs can be added to indicate whether or not the electricity is on. Debug LEDs are still useful for high-volume manufacture of FPGAs or microcontrollers.
Joint
Used to measure the voltage on the vias; connected to the test point of the vias.
GESP ONE-STOP SERVICES PCB SOLUTION
As we konw ,GESP has more than 25 years experience with 2 Layer PCB,multilayer PCB prototypes. At the sam time , PCB production, PCB Fabrication, and PCB assembly also our strong item. Becasue of Our PCB manufacturing team ensures that all design, development, quality, cost, inspection, turnaround. and delivery requirements of our PCB customers are met. As a result, For specific capacity requirements for the production of bulk PCB prototypes. high/low volume PCB assembly. and low-cost printed circuit board prototypes, please submit a PCB Quote request. Certainly, We have different printed circuit board quote request forms for different needs. such as PCB Layout quote, Printed circuit board fab quote, PCB Prototype quote. PCB assembly quote, PCB Material management quote, PCB turnkey assembly quote. or for any custom PCB assembly quote, please contact us . and our PCB Expert technician will make sure to understand your specifications.
