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Reworking your BGA

Those interested in BGA soldering may require help to rework their BGA. However, in our guide, you will learn how to rework various BGA components using many tools that are readily available to many people, as well as a hot air gun. Caution must be practiced, as high temperatures can be generated, even during routine operations.

For instance, elevated temperatures may lead to unreliability, in regards to the tin solder that affixes the pins to the board pads. Excess heat may lead to either continuous shrinking, expansion of the circuit board, or the component in question.

It should also be noted that professional repairs will generally require fairly expensive equipment because BGA components have a very precise temperature curve for cooling. Still, the guide below can be used for people who want to take matters into their own hands to salvage, say, an old satellite TV receiver or personal computer.

What You Will Need to Rework Your BGA

You will need some iron wire that is thick such as a wire clothing hanger, as well as a soda can, a pair of scissors, a hot air gun, some flux and tin solder, a vice or a pair of pliers, and some scrap iron strips. You can obtain these from pallet material that is used to keep loads intact.

Reworking Your BGA: Step 1

You will need to take your BGA chip and measure it carefully. Once you have the length, you’ll need to use a hammer and a vice to bend the strip so that a square is formed. You can also use a pair of pliers to bend the strip, or you can combine a pair of pliers with a hammer and vice combination to get the job done more effectively.

In any event, the square that you make should be slightly bigger than the actual BGA chip that you own, so that the heat will be allowed to flow beneath the chip body.

Reworking Your BGA: Step 2

Now you will need to make a clip by using some iron wire that you have at your disposal. Once you have made your clip, you should set it aside, as you will need it, later on, to hold all of the various parts and components together.

Reworking Your BGA: Step 3

Next, finish your soda off completely and use a pair of scissors or a cutter to cut open your soda can. Then, you will need to flatten the can and cut out a square hole. The reason why the hole needs to be square-shaped is so that the square frame that you made — from step 1 — can fit tightly into it.

The aluminum foil on your soda can should suffice to protect the remainder of your board components from excess heat once you begin heating the chip via your hot air gun. Heating issues should not be a problem, provided you followed all the steps carefully.

Reworking Your BGA: Step 4

At this point, your soldering flux will need to penetrate the actual BGA chip. You can aid your cause by using a small brush, ensuring to reach all sides.

Reworking Your BGA: Step 5

Next, you will need to take a tiny piece of your tin solder and roll it into a small ball. Then, set your ball aside, as you will need to return to it during the heating process.

Reworking Your BGA: Step 6

The circuit board will need to be clamped to your workbench at this point so that it doesn’t move about as you work. Ensure that the chip stays off the table so that you will be able to heat the chip from underneath easily. Next, you will need to take your square frame and your aluminum foil and set them in position using the wire clip that you made at the beginning of your project.

Take your small tin ball and set it down in the nucleus of your BGA chip. The board will need to be positioned so that the tin solder ball will not roll away once the tin has been melted sufficiently.

Reworking Your BGA: Step 7

Now comes the truly fun part, which is the heating. To begin the heating process, you will need to pull out your hot air gun, ensuring to set it to a low temperature to start. You will then need to heat the board from the bottom side as well as from above until your tin blob begins melting.

After it has melted, continue heating the area for at least an additional thirty seconds. You will know that it has melted sufficiently when the tin turns into a metallic ball that is quite shiny when it has been melted, and it will roll away if you fail to follow our steps mentioned above.

As an added tip, try and hold the gun perpendicular to the board — and above the chip — ensuring that there is an appropriate amount of distance between the chip and your hot air gun: When performed correctly the tin ball should remain on your chip instead of falling to the floor.

Reworking Your BGA: Step 8

The final step involves cooling the board. Once your board has cooled, it should be completely reworked. It will be given a new lease on life, and will not need to be thrown into a dumpster, where it would have likely been transported to a local landfill.

If you would like to learn more about BGA soldering, call Circuits Central at 888-821-7746 or contact us here.

Electronics projects for beginners

Many would-be engineers enjoy tinkering with various electronic components in order to fabricate DIY projects that they can proudly call their own. Many of their efforts will prove fruitful, thanks to the recent streamlining of various projects, and the relatively low cost of many components on the open market.

Here, we will discuss some small and fun electronic projects that beginners can get into with minimal effort and know-how.

Creating a Mini-Charger

In the past, many people would need to spend large sums of money to charge their USB-based devices while travelling from destination to destination. Today, however, things have changed significantly. While many people opt for portable chargers that they can purchase for a small amount on eBay or Amazon, another option is to make one yourself.

You can build your very own battery-powered USB charger using a small tin, such as an Altoids tin. To create the device, you will need 2 AA batteries and some charge circuitry, as well as an Altoids tin — or something of comparable size — to house the components.

You can also use rechargeable batteries instead of the 2 AA batteries if you wish. You can even upgrade to either D or C cells to create a mega battery pack. Virtually any device, including smartphones, cameras, and music players, can be charged via this homemade USB charger. For full details/specifications, please consult this guide.

USB Light

Another fun and exciting project involves using a supercapacitor to power a tiny LED. To do so, you will first need to charge the supercapacitor using a USB unit. The components that you will need to build your supercapacitor USB light are an LED, a supercapacitor, and a USB plug.

We would suggest that you use it as an emergency light in the event of a power failure in your home. For a full step-by-step guide on how to build a reliable supercapacitor USB light for a few dollars, take a look at this guide

Stereo Mixer

Audiophiles who also enjoy do-it-yourself projects may get some enjoyment out of making a stereo mixer using an Altoids tin. You will be able to enjoy multiple audio inputs via a stereo, such as a car stereo.

This is a fairly simple project that many beginners will enjoy working on and only requires a few components to complete. For a full guide on how to build a car stereo mixer using an Altoids tin and a few other components, please consult this guide.

Universal Remote

If you have to use more than one remote to enjoy your entertainment hub at home, then you may be thinking about making things easier on yourself via a universal remote. However, while you can pick up a universal remote at your local retailer, or order one online for that matter, it may be more rewarding to make one yourself.

You can make your own remote to turn many television sets on and off with ease. The device will also scan for several different frequencies by itself, and th

For a full guide on how to build your very own universal remote in a few hours, take a look at this guide.

LED-Based Throwies

For those who have never tackled a DIY project before, this one comes highly recommended, as anyone can do it with the right materials. Here, you will be making LED throwies, and you can decorate your entire house for the holidays or kick spring off right by using thousands of these luminous beauties. The LED throwies look like Skittles that have been set alright, and you will need to tape the LEDs to a watch battery to complete the job.

Flashlight Chapstick

If you want to feel like a stealthy spy, then why not build a makeshift flashlight that fits in a chapstick container? For just a few dollars, you can make an LED flashlight that can be housed comfortably in a chapstick container with just a little know-how and patience.

For the full guide on how to do so, click here.

Take the Next Step

While the aforementioned projects are very simple to take-on, this one will take a little bit more know-how, but we would still consider it to be a relatively small and easy project for most people.

Here, we will be making a persistence-of-vision toy that can be enjoyed by people of all ages.

It also serves as a superb introduction to newcomers who want to learn the basics of programming a microcontroller, as well as the fundamentals of assembling kits and soldering.

In fact, this website has all the required code that you will need in order to program the microcontroller, so you can simply download it when you have the time.

You will only need to modify a mere fraction of the code to program your personalized message into the system. This means newbies who want to start with an easy project should look no further than this fun and exciting persistence-of-vision project.

There is a myriad of different projects that neophytes can tackle with just a little bit of money, patience, and gumption, with more advanced projects available for those who are prepared to take things to the next level.

For more small and fun electronic projects for beginners, call Circuits Central at 888-821-7746 or contact us here.

How are tech companies doing to help fight COVID-19?

There are many different ways a business can help fight COVID-19. It can be as simple as making sure social distancing is adhered to, and no vulnerable people are at risk. Additionally, many tech businesses can be proactive in helping to combat this pandemic.

In order to ensure your company is doing as much as possible to fight COVID-19, you need to be aware of what your area and the government currently needs and how you can help them.

Focus Production on Supplies

Supplies are a major issue and are always going to be in high demand during the pandemic. Both the general public and essential workers are in continual need of supplies — any contribution can have a significant impact. Many different kinds of supplies are crucial to winning the fight against the coronavirus. Any business in a position to help manufacture supplies must be contributing as much as possible. For example, the demand for supplies like ventilators, swabs, masks, and eye protection will continue to be high during the crisis.

Certain companies may be in a position to donate certain supplies, while others may be able to help manufacture them. In any case, it’s vitally important that all supplies are allocated properly. By making sure every business is contributing to the supplies needed, will make it much easier to ensure fewer shortages at a time when the quantity of patients continues to be a problem.

Importance of Being Online

One thing that should be emphasized for any company is the importance of being online. Online options are helping to enable many different companies to work from home. At the very least, making sure your company is optimizing their online capacity will contribute to social distancing, thus ensuring your employees are as safe as possible. Being online also allows non-essential businesses to continue to function at some capacity.

All levels of governments are using online platforms to help facilitate much of what is going on. Even for businesses that are being forced to close, it’s important to be aware of all the systems being put in place during this process. By staying aware of all the online systems, you can make sure the company and employees can remain safe both physically and financially.

Importance of Research

For any company in a position to help develop coronavirus technologies, it’s impossible to overstate the importance of research. Many different companies can shift their focus and use their resources to research the technologies that will help win this battle against COVID-19. Right now, there is an abundance of funding available for any coronavirus technology. If your company is in a position to help develop these types of tech, it’s important to make sure all resources are being put to use.

Keep in mind that in such an unprecedented situation, the research being done is vitally important to develop technologies crucial for today and future generations as well.

Different Measures in Place

The government currently has different measures to help enable any business that is looking to contribute to the battle against COVID-19. These measures include enhanced research programs, product commercialization, and procurement. The government has these measures to help facilitate businesses that can contribute to coronavirus technology. It is important to be aware of what kind of help is needed, as once that is identified, it will be much easier to make sure your company is contributing in as many ways as possible.

How Can You Help?

Knowing how you can help is the first step, followed by having the right equipment. Different programs will ensure you can contribute and get the funding that is available to you. Any business in a position to do so should be contributing during this pandemic. This includes making sure their resources are put into researching coronavirus technologies that can save countless lives.

Do not waste any time in setting yourself up to contribute to the battle against COVID-19. If you are looking for any additional information on how your business might contribute, and what kind of technologies are involved in the process, call Circuits Central at 888-821-7746 or contact us at circuits-central.com.


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