Hello friends,

The amount of gold in the (DAC) chip is quite high, and compared to the chips in modern CPUs, I think it definitely has more. Check out these videos.

A digital-to-analog converter (DAC) chip  gold It's not there for aesthetic value, but for its essential electrical properties. The amount is very small, but it's crucial for the chip's performance and longevity.

Bonding wires: These are incredibly thin wires that connect the silicon die (the actual brain of the chip) to the chip's external pins or leads.

Connectors and pins: A thin layer of gold is often electroplated onto the contacts and pins to ensure a stable and durable connection that won't corrode.

Traces on the circuit board: Some high-end devices may use gold on the circuit board's traces to ensure optimal signal integrity.

The Economic Reality

While the cumulative amount of gold in all electronics worldwide is significant, the amount in a single DAC chip is so minute that it's not economically viable for an individual to recover it. The value of the gold in a single chip is far less than the cost and danger of the extraction process, which requires specialized equipment and hazardous chemicals. The main value of gold in e-waste is for large-scale industrial recycling facilities that can process tons of old electronics at once.

Thank you for watching the video and see you in the next clip.

Gold in DAC Chips – Hidden Value in Old Electronics! 💰✨

The amount of gold in a DAC (Digital-to-Analog Converter) chip might surprise you. Compared to modern CPUs, older DAC chips often had more gold inside — not for looks, but for performance and reliability.

🔹 Bonding wires – ultra-thin gold wires connect the silicon die to the chip’s pins.

🔹 Pins & connectors – gold plating prevents corrosion and ensures a stable, durable connection.

🔹 PCB traces – in some high-end devices, gold was even used on the circuit board for signal integrity.

⚠️ The reality: While gold is there, the amount in a single DAC chip is extremely small. Extracting it is not practical for individuals — the value is far less than the cost and dangers of chemical recovery. Large-scale recycling plants process tons of e-waste to make gold recovery worthwhile.

Thank you for watching! Don’t forget to like 👍, share 🔄, and subscribe 🔔 for more videos on gold recovery, e-waste, and vintage electronics!

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The Intel Pentium 75 MHz (1994), like most CPUs of its era, contained small but valuable amounts of gold used for reliability in electrical connections. Gold was not inside the silicon die itself but used in several key parts:

Die attach / bonding pads: The contact pads on the silicon die were often plated with gold to ensure a clean, low-resistance bond with the wires.

Package pins and contacts: The external pins of the CPU (Socket 5/7) sometimes had gold plating on their tips to provide durable, oxidation-resistant connections with the motherboard socket.

Ceramic package (in early versions): Some Pentium 75 CPUs came in a ceramic package with a metal cap—inside, gold was often used as part of the lid plating or trace bonding.

Although the actual quantity of gold was small (typically fractions of a gram per chip), it played a critical role in making the processor reliable over many years. This is why old Pentium CPUs are sometimes recovered as e-waste for gold recycling.

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Hello, welcome back! Today I'll introduce you to a method for extracting gold from IC BGA chips. First, we'll separate the IC chip from the motherboard. Next, we'll separate the black chip from the green PCB attached to the IC chip.

You'll see there are two parts:

there's the green PCB of the IC chip and the black package that encases it.

Place the black IC chip in a beaker. In this step, we'll separate the gold wire from the compound or black material. We use 98% sulfuric acid and boil it with the IC chip at 90 degrees Celsius. In my experiments, if the temperature exceeds 90 degrees Celsius, the gold will sometimes dissolve or disappear. We should use enough sulfuric acid to cover the IC chip 2-3 times its size. After the IC package or compound has completely dissolved, rinse it with water and gently rinse it off.

This step is quite dangerous, so be careful. The sulfuric acid reacts quite violently with water.

After washing, we'll see beautiful die chips and gold wires.

If you're willing to try, You can separate the gold wire and melt it down to obtain pure gold, or you can refine it to a higher purity with aqua regia, depending on your needs. You can find a video clip of this process on our channel.

For those interested in doing this at home, please consider the safety of yourself and others. Sulfuric acid is dangerous and you should have knowledge of chemicals and precautions before working. You should wear protective clothing and stay away from people and pets.

Thank you and see you in the next video.

Gold Recovery from IC BGA Chips Using Sulfuric Acid – Safe & Effective Method! 💥💰

Welcome back! In this video, we’ll show you how to extract gold wire from IC BGA chips using 98% sulfuric acid at 90°C. You'll learn how to separate the IC chip from the motherboard, dissolve the black compound, and safely recover the beautiful gold wires and die chips inside.

✅ Step-by-step IC chip breakdown

✅ Gold wire extraction process

✅ Sulfuric acid safety tips & boiling temperature guide

✅ What to do with the recovered gold

⚠️ This process involves strong acids. Always follow proper safety precautions and work in a well-ventilated area with protective gear.

#GoldRecovery #ICChipGold #BGAChipTeardown #EwasteRecycling #UrbanMining #SulfuricAcidGold #ElectronicsGold #PreciousMetalsRecovery

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🔍 What is an IC Chip Die?

An IC chip die (integrated circuit die) is the small, thin slice of semiconductor material, usually silicon, that holds the actual electronic circuit. This circuit includes components like transistors, resistors, and capacitors, all packed into a tiny space.

• The die is created using photolithography and doping processes.

• It is typically just a few millimeters in size.

• Once manufactured, the die is packaged into an outer casing (ceramic, plastic, or epoxy) to form what we know as an IC (integrated circuit).

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🟡 Gold Inside the IC Chip

Gold is used inside ICs for several important reasons:

1. Gold Wire Bonds

• Function: Gold wires connect the tiny contact pads on the silicon die to the external leads of the package.

• Why Gold?

  • Excellent electrical conductivity.

  • High corrosion resistance.

  • Reliable thermal and mechanical stability.

• Wire diameters are typically 15 to 50 microns.

• Found in older or high-end ceramic chips, military-grade ICs, or early computer ICs.

2. Gold-Plated Lead Frames or Pads

• Sometimes, gold-plated contacts are used on the lead frame or bond pads to improve reliability and conductivity.

• These are usually very thin layers, measured in microns or nanometers.

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🔧 IC Chip Recovery for Gold

People extract gold from ICs for recycling e-waste. The most gold-rich ICs are:

• Ceramic DIP chips (older types).

• CPUs from early computers.

• Telecom and military-grade ICs.

Gold recovery methods involve:

1. Removing the chip casing (by heating, crushing, or using chemicals).

2. Collecting wire bonds and gold plating.

3. Chemical processing (e.g., nitric acid, aqua regia) to isolate pure gold.

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⚠️ Safety & Note

• Always use proper safety equipment and ventilation when handling chemicals.

• Modern ICs may contain very little gold, often replaced by copper or aluminum wires due to cost.

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How to separate 5,000 pieces of gold plating with nitric acid in 24 hours

Hello friends, today I have some kind of printed pin, I don't know what it is. It's a gold-plated pin. The color is very beautiful. As usual, I will use nitric acid and water by mixing 1 part nitric acid and 3 parts water to dissolve the unwanted metal, leaving only the gold plating that we want. You see that this reaction looks very beautiful and the gold color looks very good. This set of work has a quantity of 5,000 pieces written on the bag label. First, I will separate the unwanted materials first. And next time, I will collect the gold that I get to extract it again. 

Gold is rare, but determination is rarer. You might not see it on your first try, but every failure is part of the map that leads you closer to success. Stay curious. Stay careful. Keep learning. Because with the right knowledge and a persistent spirit, even the most ordinary-looking scrap can surprise you with extraordinary rewards.

Gold extraction from e-waste often involves strong acids like aqua regia (nitric + hydrochloric acid), which release dangerous fumes and can cause burns or lung damage. To protect yourself:

Work in a Well-Ventilated Area or ideally under a fume hood to avoid inhaling toxic gases like nitrogen dioxide  or chlorine.

Wear Proper Personal Protective Equipment (PPE):

Acid-resistant gloves

Safety goggles or face shield

Long-sleeve lab coat or chemical-resistant apron

Respirator mask with acid vapor cartridges (if ventilation is limited)

Have Neutralizing Agents Ready:

Keep baking soda (sodium bicarbonate) or lime nearby to neutralize spills.

Have plenty of clean water on hand for rinsing skin in case of contact.

Label and Store Chemicals Safely:

Use chemical-proof containers with clear labels.

Store acids away from each other to prevent reactions.

Never mix chemicals blindly.

Always follow proper procedures—small mistakes can cause violent reactions.

Safety comes first—because no amount of gold is worth risking your health.

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 ต้นลีลาวดี: ราชินีแห่งดอกไม้เมืองร้อน

ต้นลีลาวดี (หรือที่รู้จักกันในชื่อ ต้นลั่นทม ในอดีต) เป็นไม้ยืนต้นที่ได้รับความนิยมอย่างมากในเขตร้อน ด้วยรูปทรงที่สวยงามและดอกที่หอมละมุน มีหลากหลายสีสัน ตั้งแต่สีขาวบริสุทธิ์ สีเหลืองสดใส สีชมพูหวาน ไปจนถึงสีแดงเข้ม

ลีลาวดีเป็นต้นไม้ที่ เลี้ยงง่าย ทนทาน และ ชอบแดดจัด จึงเหมาะอย่างยิ่งกับการปลูกในเมืองไทย สามารถปลูกได้ทั้งในกระถางและลงดิน ไม่ต้องการการดูแลที่ซับซ้อนมากนัก เพียงแค่ให้น้ำอย่างสม่ำเสมอในช่วงแรก และหมั่นตัดแต่งกิ่งเพื่อกระตุ้นการออกดอก

นอกจากความสวยงามแล้ว ดอกลีลาวดีบางชนิดยังมี กลิ่นหอมเป็นเอกลักษณ์ โดยเฉพาะในช่วงเย็นถึงกลางคืน จึงนิยมนำมาใช้ตกแต่งสถานที่ จัดช่อดอกไม้ หรือแม้แต่นำดอกมาลอยน้ำเพื่อเพิ่มความสดชื่น

ด้วยคุณสมบัติที่โดดเด่นทั้งความสวยงาม ดูแลง่าย และกลิ่นหอม ลีลาวดีจึงเป็นตัวเลือกที่ยอดเยี่ยมสำหรับผู้ที่ต้องการเพิ่มความสดใสและความสง่างามให้กับสวนหรือระเบียงบ้านครับ

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Whether you’re thinking of extracting precious metals like gold from old IC chips or selling usable parts online, here’s what you need to know.

1. Know What You Have: Sorting Components

Start by identifying what kind of electronic components you’re dealing with:

Circuit Boards (PCBs) from computers, phones, and TVs

IC Chips (Integrated Circuits) and processors

RAM sticks and CPUs

Connectors and Pins with visible gold plating

Power supplies, hard drives, and other mechanical parts

Some items are ideal for precious metal recovery, while others may still be functional and can be resold.

2. Extracting Gold from IC Chips: The Process and Risks

Gold is used in electronics because it doesn't corrode and conducts electricity well. But it’s only present in tiny amounts—measured in fractions of a gram per device. Here’s an overview of how gold is extracted:

Incredible Gold Recovery from IC Chips – How It’s Done

Chip Harvesting: IC chips are removed from circuit boards using heat or chemicals.

Burning or Crushing: Some methods involve incinerating chips or crushing them into powder.

Chemical Treatment: The powder is soaked in aqua regia (a mix of nitric and hydrochloric acid) to dissolve the metals.

Gold Precipitation: After filtration, chemicals such as SMB (Sodium Metabisulfite) are added to precipitate pure gold.

Smelting: The recovered gold powder is melted into a solid nugget or bar.

⚠️ Warning: This process involves toxic chemicals and dangerous fumes. It must be done with proper safety gear, in a well-ventilated area, or preferably in a lab setting. In many regions, this process may also require a license due to environmental regulations.

3. Selling Components Instead: A Safer and Sometimes More Profitable Option

Not all e-waste should be chemically processed. Often, working components can fetch a higher value when resold.

Top Platforms for Reselling Electronic Parts:

eBay: Ideal for rare or vintage parts like RAM, CPUs, IC chips, and graphics cards.

Facebook Marketplace: Good for local selling of power supplies, cases, and parts.

Specialist Websites: Some platforms focus on bulk component sales or specific electronics.

What Sells Well:

Tested, functional CPUs and GPUs

Rare or discontinued IC chips

Working RAM sticks

Gold-plated connectors and pins

Vintage electronics (for collectors or restoration)

✅ Tip: Take clear photos, include model numbers, and test components if possible. Buyers pay more when they know what they're getting.

4. Environmental Considerations

Whether you extract or resell, responsible e-waste handling is important:

Avoid landfilling e-waste—it leaks toxic metals into soil and water.

Work with certified e-waste recyclers if you’re unsure how to process certain items.

Donate usable electronics to schools or nonprofits before scrapping them.

5. Final Thoughts: Choose Your Path Wisely

If you’re tech-savvy and have the right safety setup, gold extraction from IC chips can be fascinating—but it’s more suited for those with experience and proper equipment.

For beginners or those interested in turning a quick profit, reselling components is often safer, easier, and surprisingly profitable.

Whichever route you choose, remember: e-waste isn’t waste until it’s wasted.

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Today I found an old electronic module of EPSON BIOS. I'm not sure what it's used for. I'll take it apart to see if it can be used to extract gold. Are there any parts that contain gold? Let's see from what we've taken apart. You can see that it has 3 black dots of IC chip. Inside, there are a lot of gold wires. I might use this part to extract gold later. But today, we'll take it apart to see what's inside and what's interesting.

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3-minute explanation on how to find and extract gold-plated pin connectors from old or obsolete electronics:

🕵️‍♂️ Step 1: Know What to Look For

Gold is used in electronics for its excellent conductivity and resistance to corrosion. You’ll typically find gold-plated connectors, pins, and fingers in:

Old desktop computers (especially servers)

Laptops and motherboards

Hard drives

RAM sticks

PCI cards

CPUs

Old mobile phones

Modems, routers, and network equipment

Look for parts that connect or plug into something else—gold is often used on those contact points.

🧰 Step 2: Tools You’ll Need

Small Phillips screwdriver or electronics toolkit

Needle-nose pliers

Wire cutters

Magnifying glass (helpful for spotting gold)

A container to store gold pins safely

Optional: Dremel tool or rotary cutter for tough components.

🪛 Step 3: Dismantle the Device

Start by opening the casing of the device. Be careful—old electronics may have sharp edges or hidden screws.

Once open:

Remove the motherboard or circuit boards

Identify gold-plated connectors: they’re typically shiny yellow (not dull brass color)

PCI cards, CPU sockets, and RAM slots usually have gold-plated pin connectors

🏅 Step 4: Identify Gold-plated Parts

You're looking for:

Edge connectors (long strips on RAM or expansion cards)

CPU pins (older CPUs, especially ceramic ones like Pentium Pro or AMD K6, can have gold)

Pin headers (those upright little needles that wires plug into)

Internal connectors (IDE connectors, backplane connectors)

Use a magnifying glass if unsure—gold plating has a distinctive bright yellow shine and doesn’t tarnish.

✂️ Step 5: Extract the Gold Pins

Once found, use:

Wire cutters to snip gold pins off headers

Pliers to pull gold-plated connectors or edge fingers from boards

For RAM or PCI cards, cut the golden edge fingers off cleanly

Place all your gold-bearing parts in a labeled container. Be neat—it helps later if you go on to refine the gold chemically.

⚠️ BONUS: What Not to Do

Don’t expect pure gold—it’s plated, and usually microns thick

Don’t refine unless you know what you’re doing—it involves hazardous chemicals like nitric acid and should only be done with proper knowledge and safety

✅ In Summary:

Look for gold on connectors and contact points

Focus on RAM, CPUs, cards, and motherboards

Use simple tools to remove and collect

Store your finds until you have enough to refine or sell as scrap

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The SDS3811B-125.0000 is a surface-mount crystal oscillator, likely operating at 125.0000 MHz. While specific datasheets for this model are not readily available, components like this are typically used in applications requiring precise timing, such as telecommunications, networking, and embedded systems. These oscillators often feature gold-plated contacts to ensure reliable electrical connections.

Brilliyond

Why Is Gold Used in Electronics?

Gold is extensively used in electronic components due to its unique combination of properties:

Exceptional Electrical Conductivity: Gold allows electricity to flow with minimal resistance, ensuring efficient signal transmission.

Using pliers with extra narrow gripping jaws is a precise, manual method to remove Gold Fingers from a circuit board. Here’s how it works,

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"Have you ever wondered what connects the tiny sensor inside a CCD camera to the rest of the electronics? The answer is bonding wires—made of either gold or non-gold materials."

Gold Wire 

"Gold wire has been traditionally used in CCD cameras for its excellent electrical conductivity, corrosion resistance, and reliability. It’s also very soft and easy to work with in delicate microelectronics. In high-end CCD sensors—like those used in scientific instruments or space telescopes—gold wire ensures stable performance over time, even in extreme conditions."

Non-Gold Wire 

"But gold is expensive. That’s why many manufacturers now use non-gold wires—like copper or silver-coated aluminum. These offer similar conductivity and are much cheaper, but they can oxidize faster and are harder to bond. Still, with advances in packaging technology, non-gold wires are becoming more common in consumer-grade CCD cameras, like those in home security or older digital cameras."

Conclusion 

"In short, gold wire means better reliability and longevity—perfect for critical applications. Non-gold wire saves cost and is ideal for mass production. Both play vital roles in the world of CCD cameras."

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