PCBA manufacturing High volume PCB Assembly with functional test

PCBA manufacturing High volume PCB Assembly with functional test

We GWT known for our fast,high-quality PCBA manufacturing services .Here’s what to expect from our team.

1.Fast Assembly Turnaround – Once we receive your approval, we can procure components and bare boards and assemble your PCBs in as little as 3 business days. Our most popular turn times are 5 and 7 day turn times but we will flex to your schedule. Our speed allows our customers to stay on tight project schedules or make up time on a schedule that is behind.

2.A wide variety of PCBA manufacturing capabilities –These include:

--All SMT components machine-placed

--3D x-rays of all leadless parts

--Single and double-sided assembly

--Leaded and RoHS builds

3.Certified services- We follow industry regulations for our operations, which is why we’re certified and registered in the following:

--ISO9001

--IATF16949 (It's Required by the Automotive industry quality system)

--ISO13485:2016 (It's Required by the medical industry quality system)

4.Manufacturing capability

5.Projects display

6.Functional test

Functional test (FCT) is used as a final manufacturing step. It provides a pass/fail determination on finished PCBA before they are shipped. An FCT’s purpose in manufacturing is to validate that product hardware is free of defects that could, otherwise, adversely affect the product’s correct functioning in a system application. In short, FCT verifies a PCBA’s functionality and its behavior. It is important to emphasize that the requirements of a functional test, its development, and procedures vary widely from PCBA to PCBA and system to system.

Functional testers typically interface to the PCBA under test via its edge connector or a test-probe point. This testing simulates the final electrical environment in which the PCBA will be used.

The most common form of functional test simply verifies that the PCBA is functioning properly. More sophisticated functional tests involve cycling the PCBA through an exhaustive range of operational tests.

7.Advantages of Functional Test:

1.Functional test simulates the operating environment for the product under test thereby minimizing the expensive cost for the customer to provide the actual testing equipment

2.It eliminates the need for expensive system tests in some cases, which saves the OEM lots of time and financial resources.

3.It can check the functionality of the product anywhere from 50% to 100% of the product being shipped thereby minimizing the time and effort on the OEM to check and debug it.

4.Prudent testing engineers can extract the most productivity out of functional test thereby making it the most effective tool short of system test.

5.Functional test enhances the other types of tests such as ICT and flying probe test, making the product more robust and error free.

A functional test emulates or simulates a product’s operational environment to check its correct functionality. The environment consists of any device that communicates with the device under test (DUT), for example, the DUT’s power supply or program loads necessary to make the DUT work properly.

The PCBA is subjected to a sequence of signals and power supplies. Responses are monitored at specific points to ensure functionality is correct. The test is usually performed according to the OEM test engineer, who defines the specifications and test procedures. This test is best at detecting wrong component values, functional failures and parametric failures.

Test software, sometimes called firmware, allows production line operators to perform functional test in an automatic way through a computer. To do this, the software communicates with external programmable instruments as a digital multi-meter, I/O boards, communication ports. The software combined with the fixture interfacing the instruments with the DUT make it possible to perform a FCT.