Is ENIG the Game-Changer for PCB Boards? 

In the rapidly evolving realm of electronics manufacturing, a critical factor that demands utmost attention is the surface finish meticulously applied to printed circuit boards (PCBs). Explore an intriguing article with Ark Circuitry to find out about the surface finish that is widely utilized and safeguards against corrosion and oxidation. Ark Circuitry Ventures is an Electronic Manufacturing Service provider and PCB manufacturer specialize in providing End-to-End services that can be tailor-made to meet your requirements. We offer a comprehensive range of Surface Mount Technology (SMT) processes to accommodate various production scales. This includes a fully automated SMT process tailored for large volume production and a semi-automated SMT process designed for small run production.    Introduction to ENIG: Electroless Nickel Immersion Gold(ENIG) also known as immersion gold, is an unique and precise surface finish process offering an extension of shelf life and high resistance to corrosion. At Ark Circuitry, we aim to ensure customer satisfaction by providing top-notch ENIG surface finish on PCBs according to their specific requirements. The PCB board features a well-finished surface with nickel and gold plating. How do we do ENIG at Ark Circuitry: Firstly, with Ark circuitry, we prioritize ensuring a clean surface for the PCB board, accomplished by meticulously cleaning away dirt using a suitable abrasive material.  Furthermore, we engage in precise etching procedure by using an acid solution to remove unwanted copper, thus, ensuring optimal surface smoothness and uniformity on the board. At Ark Circuitry, our skilled team of engineers expertly submerge the printed circuit board (PCB) into an electroless nickel solution, wherein a reducing agent and a source of nickel ions are present, forming a delicate nickel coating on the exposed copper surfaces of the PCB. And the board is rinsed to eliminate excess nickel from the surface. The nickel acts as a protective barrier on the copper pads of the PCB board.  Our engineers immerse the nickel-plated board into a solution containing gold salts. Thus, the ENIG plating consists of a layer of gold which protects the nickel thus offering low resistance.  Again, the gold-plated PCB undergoes a thorough cleaning process followed by drying, effectively eliminating the residual chemicals . Finally, the PCB board is ready for testing and assembly. Applying the ENIG process, successfully prevents corrosion and oxidation, resulting in better electron conductivity and durable finish.   Assessing The Thickness Of Nickel And Gold in ENIG: The thickness of nickel can range from 4 to 7 µm, while gold thickness can range from 0.05 to 0.23 µm. Regarding gold thickness specifically: Besides, for standard PCB and flex PCB applications, we recommend a range of 1-3 micro inches However, for advanced PCBs, we prioritize a slightly higher range of 2-3 micro inches. Presenting the fully finished ENIG-treated circuit board Pragmatic benefits of ENIG coating: ENIG coating is utilized in wire bonding applications to establish dependable interconnections between integrated circuits and other components. Moreover, the gold layer present in ENIG aids in gold wire bonding, which is commonly employed in specialized electronic applications, such as high-frequency devices. Our clients: Our specialization lies in the diverse application of ENIG across various sectors, encompassing defense, medical-grade boards, automotive, and aerospace industries. Our services cater to clients interested in manufacturing products in India, with a focus on reducing costs while enhancing both the quality and efficiency of their production process.  Looking to design or fabricate a PCB?  Talk to us to know more.  Mail us on  Call us at +91 9176418660. Ark Circuitry is an integrated electronics design assembly and mass manufacturing service provider renowned for crafting end-to-end services that accurately align with your unique requirements. With our team of seasoned engineers committed to excellence, we provide reliable and high quality services! Twitter Youtube Linkedin Instagram Recent Blogs Is BOM Identification for Electronics Designers important? Regan May 31, 2023 What is Bill Of Materials in electronics? The BOM is a crucial inventory of components needed for … Read More How to Reverse Engineer a Concept Board:A Comprehensive Guide for Beginners Regan May 15, 2023 How can you upgrade an existing product based on technological advancements or specific needs? Do … Read More

Is ENIG the Game-Changer for PCB Boards?  Read More »

How to Effectively run a Functional Test on a PCB?

A functional test is a quickest and most effective way to check an assembly function as designed. This simulates the intended field of application and also analyses the electrical behaviour of the assembled board. Read more to find out our top 7 checks and how we fixed defects during a recent project. Firstly, the assembly process is chosen depending on the customer’s requirements and the electronic components. A mixed process of through-hole and SMT assemblies was used to build these boards. Next, once the PCBA is ready, it undergoes functional testing or FCT before being shipped. These tests aim to eliminate any defects or faults that might hinder reliability, replace incorrect or faulty components, check solder points and generate a detailed report to share with our customers. This module will be used in an EV charging station. Certain specific components were provided by the customer and others were sourced from our suppliers.  The 7 Checkpoints We Ran To Ensure The Proper Functioning Of A PCBA: At Ark Circuitry, we go the extra mile to ensure reliable boards are manufactured. For this specific project, after uploading the code, the engineer tests the boards to ensure the board will carry out the intended functions in the actual application. The checkpoints that they look at ticking off are: 1. Relay check: According to the functions and design, we have used 5 relays on the board.  When the engineer inputs the command, a soft clicking noise is the expected output.  Relay and buzzer test in progress 2. Buzzer test: The next is the buzzer test. The buzzer must go off when the command is run to confirm its functioning.  3. GSM module and Wifi test: A Sim card is inserted and the code is run. This test records the HSN code of the network and IP addresses generated.  GSM and WIFI test 4. CAN test: CAN test  The Controller Area Network or the CAN test. When the command is given, the output returns as a pass and that signifies its functioning.  5. RFID test “Access denied” is the prompt that returns (that was set by the customer ) when the tag is tapped. This ensures the component’s proper functioning. Testing the RFID function 6. LED check The customer provided us with the LED strip. The power supply to the LED is tested. The lights go off at first. It then turns on switching from red to blue and we know its a check.  Power supply to the LED is tested using this test 7. Voltage check: An input power of 12V is fed and an output of 5V is recorded to ensure its functioning. If a defect is detected, they check for open/shorts in nets or faults in solder connections. Lastly, once the tests are complete, the data is processed and the results generated. The stored data would aid in maintaining the PCBA quality effectively.  A detailed report on the status of functioning is shared with the customer for analysis or to refer to the test log.  Some points to look for when a fault persists: Check and recheck that all IC pins are soldered properly  Ensure that there is no solder paste residue  Reflow oven: When the outer layer of the solder paste would have dried and the inner layer might be still wet it leads to no contact. Check if it has been soldered well. Do not use solder paste that might be old or not stored at the right temperature. Temperature and environment are crucial, this results in no solder Manual solder any joints where there is no contact Use reliable and good-quality components Ensure your engineers are well-trained from time to time and quick to pick up issues/faults There are other inspection processes that a customer can request. Furthermore, read our previous blog to know more about inspection Get in touch with us to know more about the services we can provide. We are an EMS provider and specialise In providing tailor-made end-to-end services to meet your requirements. We have the capabilities and the experience to deliver low or high-volume orders.   Let’s talk for more information. Call us on +91 91764 18660 Mails us at: Visit us at: Facebook Twitter Linkedin Instagram Recent Blogs How to Effectively run a Functional Test on a PCB? Suneyna February 17, 2023 A functional test is a quickest and most effective way to check an assembly function as designed. … Read More How prototypes help identify and formulate design and save time Regan February 9, 2023 Prototypes can help manufacturers save manpower, time and money. It simulates the actual product … Read More

How to Effectively run a Functional Test on a PCB? Read More »

How prototypes help identify and formulate design and save time

Prototypes can help manufacturers save manpower, time and money. It simulates the actual product that you can present to your customer. Read this blog to find out how. Prototyping: A powder-coated aluminium box was the proposed enclosure. We 3D printed an enclosure to check how the board fit and the placement of the button and switch. We presented the fabricated powder-coated box to the client. At this point, we proposed a brushed stainless steel enclosure for sophistication. The client accepted the suggestion. Rapid prototyping: To execute several revisions in a short time, rapid prototyping is often used. Rapid prototyping can reduce material wastage, and expenses and quicken the processing time. This can confirm the functioning and aesthetics of a product. Reasons for prototyping: Prototypes help the designer and engineer to work out a solution for a final product. The designer finalises the material, structure, functions and appearance of the solution. A prototype allows the designer and engineer to make informed decisions. You can create prototypes with available materials or other techniques. This helps you create a solution keeping the cost minimal. Prototyping helps simulate the actual product. An operating version of prototypes can give the customer an idea of the product. Building the concept tests the possibility of whether the idea is operable. Prototyping determines unanticipated technical, financial and other hurdles that may occur during manufacturing. Provide you with an idea of how the end user will interact with the product. Illustrating our recent prototype for Clarico Air: We have been rolling out tailor-made box builds for an Indoor Air Quality Management system. Before manufacturing the products, prototypes helped us develop a functional and appealing product. PCB design lifecycle: First, we began with a conversation with the client to understand their requirements. Then, our designer created a PCB design and fit it into the enclosure. But, upon testing the usability, the designer included a few changes to the design. After testing the board it was fit into the box. This was the final design. A few design changes were made with inputs from the client and to fit the PCB perfectly into the enclosure Enclosure design changes: Then, a powder-coated aluminium box was the proposed enclosure. We 3D printed an enclosure to check how the board fit and the placement of the button and switch. We presented the fabricated powder-coated box to the client. At this point, we proposed a brushed stainless steel enclosure for sophistication. The client accepted the suggestion. Enclosure design changes (contd): Manufacturing the fully finished products: Finally, on approval, the electrical and mechanical designs are finalised. Using both SMT and through-hole technology we manufactured the PCBs. The mechanical team fabricated the enclosures to place the PCBs in them. All the necessary wires and harnesses are fit. Brushed Stainless Steel enclosure. The logo is lasercut with a black background. Our take on the benefits of prototyping: Ensure to communicate to your customer that prototypes are mockups only. The client and the manufacturer benefit by saving time, energy and financial burn. Moreover, prototypes can project costs, technical specifications and programming glitches. By testing the functionality, minimise design flaws and include modifications. Drop several edits and quicken the design development process through prototyping. Check out Clarico’s case studies to know more about the Indoor Air Quality systems deployed by them in Noida and Gurgaon. Check Out Clarico Air To Know More About Their Capabilities And Project. Get In Touch With Us To Know More About The Services We Can Provide. We Are An EMS Provider And Specialise In Providing Tailor-made End-To-End Services To Meet Your Requirements. We Have The Capabilities To Deliver Low Or High Volume Orders.   Let’s talk for more information.   Call us on: +91 91764 18660   Mails us at:   Visit us at: Facebook Twitter Linkedin Instagram Recent Blogs How prototypes help identify and formulate design and save time Regan February 9, 2023 Prototypes can help manufacturers save manpower, time and money. It simulates the actual product … Read More Reverse Engineering-13 ways to constructively use it in R&D Regan February 2, 2023 What happens if a product or machinery used becomes outdated and you can’t find its components? Can … Read More

How prototypes help identify and formulate design and save time Read More »

Why is cleaning a PCBA an essential process in manufacturing?

The functioning of electronic devices relies heavily on circuit boards. Care needs to be taken when manufacturing the boards and more so after. Even a spec of dust or residue can affect the reliability and this articles explains more.

Why is cleaning a PCBA an essential process in manufacturing? Read More »

15 challenges in the Electronics Manufacturing Process

Electronics Manufacturing Services are the backbone of manufacturing for companies to produce devices that are launched into the market. They take care of the backend operations from the very beginning of design to delivery and they are crucial at several stages of production. Read more to find out about the challenges that may occur during the manufacturing process. Electronics have been bulldozing their way into every field replacing several manual systems that require manpower. A well-established fact that machines are more reliable, accurate and fast and therefore mitigate errors has bolstered the popularity of electronics. From the manufacturing sector to everyday living, its applications are extensive. The process of Electronics Manufacturing The key elements in an electronics manufacturing process begin from designing the devices to testing and shipping them to customers. Various factors are to be taken into consideration when manufacturing products for OEMs and enterprises. A good design, reducing PCBA re-operations & iterations,  and finally controlling material and labour costs contribute to the cost-effectiveness of the product. The article on Small-run SMT production or Building prototypes using manual soldering gives you a detailed step-by-step understanding of the semi-automatic and manual assembly of PCBs. Let’s explore the challenges that an EMS provider might face during the stages spanning from product design, development, and production to launching it in the market. The constant and rapid advancements in technology: The advancement in technology has become a challenge to most manufacturing companies. Companies have been investing heavily in research to update their existing product or launch new ones to stay ahead of competitors Adopting design principles:  Design principles when adopted during the early stages of planning would be efficient and cut costs and increase lead times. A good design is essential to the functionality, reliability and durability of a device. Product shelf life: With the advancements in technology, companies face the irony of a time-bound product life cycle for non-perishable goods. There are more and more innovative products that are launched every so often that encourage a switch to replace existing products. For example in PCB manufacturing, SMT has been evolving rapidly and so are the machines. Pick and place machines are becoming faster, more flexible to incorporate changes, and more precise and reliable.  Reliability of the device: The reputation of both the manufacturer and EMS provider relies on the reliability and functionality of an electronic device. The durability and reliability of electronic devices rely on several factors. Although the poor design, quality and manufacturing defects are major factors, environmental conditions, overstress and wear and tear also may contribute to the device’s reliability. Access to suppliers: Building a strong network to source components and having consistent supply are crucial to the manufacturing and delivery of a product. Even when EMS providers have access and a network of efficient suppliers sometimes there are unavoidable crises that affect the supply. E.g. the recent chip shortage that shook the automotive industry. The unfortunate turn of events during COVID-19 disrupted both the production and shipping of automobile chips. This delayed the launch of several new and old model vehicles. Supply chain disruptions: Although production is crucial to launch products, supply chain management is important too. Quoting the example from the above point,  the production of the chips that relied on components sourced from suppliers was delayed due to the disruptions in the supply chain. This in turn delayed the production of the chips and their delivery to the automobile manufacturers. The global shipping delays resulted in production and launch setbacks of vehicles. Economic volatility: The manufacturing process is susceptible to the global economic fluctuations that occur. This results in price variations and sometimes leads to orders being cancelled or withheld. When raw material is required certain rare or high-in-demand materials to build a device which might be difficult to obtain. This might lead to a shortage and retailers may bump up the prices. Competition: This is an unavoidable yet difficult challenge to tackle. With the rise in the number of competitors, EMS providers have to battle with quotes which may sometimes not be very profitable. But this can lead to continuous orders which in the long run would be profitable. Labour issues: Although the manufacturing industry has become technologically advanced, it still requires a huge amount of manpower in several or a few stages of the manufacturing process. There could be manpower shortages, labour strikes due to economic fluctuations, working overtime to meet an increase in demand, etc. Since we still highly rely on labour-centric production processes, they are key to smooth production and supply processes. Sustainability: The world is moving towards including “sustainability” in all spheres of life. E.g. There are several communities that produce living necessities and live isolated from the rest of the world. There have been several protests and movements against several industries to become more sustainable. Several factories have been trying to become fully solar-powered, have greener manufacturing processes, improve inventory management and cut wastage, use recycled material, etc. Emerging markets: Several developing nations have been striving to become more advanced by increasing their standardisation and production. They are rapidly increasing their per capita income due to high production levels and significant industrialisation.  Project recall: After launching a product, sometimes manufacturers detect defect(s) and would publicly make an announcement to all their customers to return the product. This does affect the reputation of the brand and they pay a price with a drop in overall sales at least temporarily until damage control is executed. Social media pressure: Today, most customers raise complaints on social media platforms when companies don’t respond effectively. On the same hand, some customers give positive feedback and voluntarily promote a certain product. Social media can work both ways; for or against the reputation of a product. Moreover, social media has become a primary source of advertisement today. Many brands have been creating interactive content making ads more engaging and interesting, this puts pressure on competitive brands to follow the trend. Competitive prices: Irrespective of overall costs incurred

15 challenges in the Electronics Manufacturing Process Read More »