How do Adhesives Accelerate the Development of Miniaturised Electronic Devices?
In today’s tech-driven landscape, there’s a growing demand for smaller, more efficient electronic devices. Miniaturisation is at the forefront of innovation, spanning across smartphones, wearable technology, medical devices, and IoT (Internet of Things) gadgets. A pivotal element in this evolution is the advancement of epoxy adhesives specifically designed for miniaturised electronics. These adhesives are vital for assembly and functionality, providing essential benefits such as strength, durability, and thermal stability.
In this blog, we will explore how epoxy adhesives enhance the development of compact electronic devices, detailing their essential properties, diverse applications, and the impact they have on advancing technology in various industries.
A] Understanding How Epoxy Adhesives Aid In Accelerating The Development Of Miniaturised Electronic Devices
Epoxy adhesives significantly contribute to the durability and resilience of miniaturised electronic devices. This enhanced durability encourages manufacturers to shrink components without compromising functionality.
Epoxies are highly customizable, allowing them to be tailored to specific requirements. This adaptability enables manufacturers to address challenges such as heat distribution, thermal expansion/contraction, electrical interconnection, underfill/encapsulation, and dust shielding. Moreover, epoxy adhesives provide cost-effective and time-efficient solutions for bonding delicate microscopic components, speeding up production without sacrificing quality.
With the rise in demand for high-performance miniature devices, epoxies play a pivotal role in meeting that demand. Additionally, they reduce waste generated during the bonding process, further improving cost-effectiveness.
B] The Role Of Epoxy Adhesives In The Miniaturisation Of Electronic Devices
Epoxy adhesives provide distinct advantages for manufacturers in the assembly of robust miniature electronic devices. These high-performance adhesives are renowned for their exceptional bonding capabilities, durability, and resistance to environmental factors. Below are the key ways in which epoxy adhesives contribute to the development of advanced electronic components:
- Mechanical Strength And Durability: A robust bond is crucial for securing delicate components, as even minor forces can dislocate them. Epoxy adhesives are renowned for their exceptional mechanical strength and durability. The strength of epoxy adhesive ensures electronic devices operate correctly, preventing malfunctions and enhancing the overall performance and longevity of the assembled products.
- Thermal Conductivity: Electronic devices generate considerable heat that can exceed thermal limits, risking damage to circuits and critical components. Manufacturers utilise thermally conductive epoxy adhesives to safeguard sensitive parts and efficiently transfer heat to heat sinks. Consequently, It enhances thermal management and ensures optimal device performance.
- Electrical Conductivity: Electrically conductive adhesives serve as an effective alternative to solder, playing a vital role in maintaining continuous electrical current flow in integrated circuits (ICs). These adhesives enhance reliability and performance, allowing for efficient assembly and reducing potential damage to sensitive components during the manufacturing process.
- Reduced Weight And Size: Adhesives are lightweight and can be easily applied in tiny spaces, making them ideal for miniature electronic devices. Their reduced weight and size enable manufacturers to create sleek, lightweight components, enhancing device portability and efficiency while maintaining performance.
- Vibration and Shock Absorption: Electronic-grade epoxy adhesives, sealants, and coatings are critical in bonding electronic components due to their superior ability to absorb mechanical shocks and vibrations. This characteristic is especially vital for devices that require endurance to impact, shocks, and vibrations. Electronic components must remain securely adhered to even under extreme conditions. For example, portable and wearable devices endure constant movement and physical impacts.
- Low Outgassing: Space-grade epoxy adhesives exhibit low outgassing properties, i.e. they can pass NASA standards (ASTM E-595) for low outgassing. A huge number of semiconductor chips and microelectronics are being used in space applications and ultra-high vacuum environments. Low outgassing space grade epoxies prevent any contamination to the sensitive components and maintain device integrity. Space-grade epoxies ensure a safer application in miniature electronic devices while providing reliable bonding, sealing, and coating performance essential for optimal functionality.
If you are struggling to select the perfect epoxy adhesive for miniaturised electronic devices? Check out our guide: How To Choose The Right Adhesives For Electronic Components?
Boost mini device innovation with our adhesives!
C] Applications Of Epoxy Adhesives Used In Microelectronics
- Coating: Epoxy resins are utilised for conformal coating on printed circuit boards (PCBs), providing a protective barrier against environmental factors. It safeguards sensitive components from dust, moisture, and chemicals, ensuring enhanced reliability and longevity of electronic devices.
- Bonding: Epoxy adhesives are essential for bonding a diverse range of materials in microelectronics, including metals, plastics, and ceramics. Formulated for optimal adhesion and flexibility, these adhesives securely hold components in place under various conditions, enhancing the durability of electronic assemblies.
- Encapsulation: Encapsulation employs electrically and thermally insulating/conductive epoxy adhesives to protect sensitive dies and wire bonds. This method shields wires from physical damage and moisture ingress, ensuring the integrity and performance of the microelectronic components throughout their operational life.
- Surface Mounting: Adhesives play a crucial role in surface mounting technology, bonding electrical components directly to printed circuit boards (PCBs). This technique serves as a viable alternative to traditional soldering, offering improved manufacturing efficiency and reduced thermal stress on sensitive components.
- EMI/RFI shielding: Epoxy adhesives are also employed for electromagnetic interference (EMI) and radio frequency interference (RFI) shielding. By forming a protective layer around electro-sensitive components, these adhesives help prevent external electromagnetic and radio frequencies from disrupting the functionality and performance of electronic devices.
D] Kohesi Bond Epoxy Adhesive Products For Electronics Miniaturisation
- KB 1452 HT-2: It is a two-component adhesive with excellent electrical insulation and chemical resistance. While it is mainly used in the medical industry, it also finds its usefulness in microelectronics.
- KB 1031 AT-S: It is a two-component, heat-curing, silver-filled epoxy, suitable for bonding and sealing solutions. It offers one of the best thermal and electrical conductivity properties in the market. Its 1:1 mix ratio by weight makes it easy to use for various applications.
- TUF 1613 HT-CM: A single-component, heat-curing adhesive designed for fast curing at elevated temperatures. It offers excellent electrical insulation and thermal conductivity, making it ideal for PCB manufacturing.
- TUF 1613 HT-DA: TUF 1613 HT-DA is a fast-curing, true single-component epoxy system for die-attach applications. It has exceptional die shear strength, excellent dispensing profile, and low ionic content.
- TUF 1820 HTS: It is a single-component, silver-filled epoxy system that offers world-class electrical conductivity. It offers high mechanical strength and peel strength. It is also resistant to a variety of acids, bases, fuels, and water, making it perfect for electronics manufacturing applications.
- KB 1040-2: KB 1040-2 is a two-component optically clear epoxy system used as an electrical insulator in aerospace, electronics, optical, fibre-optic, and various OEM applications. It has unique vacuum compatibility and astounding chemical resistance to a variety of acids, bases, solvents, fuels, oils, and water.
- KB 1031 LV: It is a two-component epoxy system for bonding, sealing, coating, and encapsulating. It offers superior electrical insulation and astounding chemical resistance to a variety of fuels, oils, acids, and bases, making it an ideal choice for electronics, aerospace, electrical, optical, and various OEM applications.
Related Products
KB 1452 HT-2
Kohesi Bond KB 1452 HT-2 is a two component, room temperature curing, medical grade epoxy system suitable for bonding, sealing, potting and encapsulation. It has a favorable 100:40 (Part A: Part B) mix ratio by weight or 100:50 (Part A: Part B) mix ratio by volume. Read MoreKB 1031 AT-S
Kohesi Bond KB 1031 AT-S is a two component, silver filled, electrically conductive epoxy system suitable for bonding and sealing. It has a convenient 1:1 (Part A: Part B) mix ratio by weight. It offers unprecedentedly low volume resistivity (< 10-3 ohm-cm) and remarkably high thermal conductivity. Read MoreTUF 1613 HT-CM
Kohesi Bond TUF 1613 HT-CM is a toughened, single component system that requires no mixing and cures readily at elevated temperatures. Although it requires a minimum temperature of 120°C for curing (at which it cures extraordinarily fast), it can achieve even faster cures at higher temperatures. Read MoreTUF 1613 HT-DA
Kohesi Bond TUF 1613 HT-DA is a fast curing, true single component epoxy system for die attach applications. Unlike other die attach systems, TUF 1613 HT-DA is not a premixed and frozen system. It only needs elementary refrigeration for storage and offers an unlimited working life at room temperature. Read MoreTUF 1820 HTS
Kohesi Bond TUF 1820 HTS is a toughened, single component, silver conductive epoxy system that requires no mixing and offers an unlimited working life at room temperature. Firstly, this product offers phenomenal electrical as well as thermal conductivity. Read MoreKB 1040-2
Kohesi Bond KB 1040-2 is a two component, room temperature curing epoxy system suitable for bonding, sealing, coating and encapsulating applications. It has a favorable 10:1 (Part A: Part B) mix ratio by weight. The highlight of this products is its superior optical clarity and its capability of passing NASA low outgassing test. Read MoreKB 1031 SPLV-6
Kohesi Bond KB 1031 SPLV-6 is a two component epoxy system for bonding, sealing, coating and encapsulating. It has a convenient 1:1 (Part A: Part B) mix ratio by weight or volume. This high performance specialty product offers a unique combination of low viscosity, low exotherm and very long working life. Read MoreConclusion
While miniaturization has been a consistent trend in the electronics industry, the use of epoxy adhesives has propelled it to new heights. These adhesives offer critical advantages, such as mechanical strength, thermal & electrical insulation/conductivity, and weight reduction. Their customizable properties enable manufacturers to design lighter, more compact devices without compromising functionality.
If you’re looking for tailored epoxy adhesives to meet your specific needs, don’t hesitate to reach out! Our team of adhesive experts is ready to assist you in finding the perfect solution for your business.
FAQs
Electronic-grade adhesives are specially formulated for fast and precise bonding of electronic components. Their special formulations allow them to withstand heat and vibrations while keeping the small, delicate components in place. They may also have features like electric conductivity or insulation, thermal conductivity or resistance, and dust and moisture resistance.
Adhesives are lightweight, highly customisable, and offer excellent bonding strength. These properties enable manufacturers to make thinner, lighter, and more flexible devices.
Epoxies are among the most commonly used adhesives in microelectronics. They are very flexible and available in a wide variety of formulations, which makes them a perfect choice for several applications.
Electrical conductive adhesives perform a dual role of holding the components together as well as allowing the free flow of electrons. This reduces the number of components required, in turn reducing the overall manufacturing cost. They also increase the reliability of miniature electronic systems as they offer superior electrical conductivity.
Considerations when selecting adhesives for miniature electronic devices often vary depending on the requirements. Some general considerations you should consider are the electrical properties, thermal properties, bond strength, durability, and curing conditions of the epoxy adhesive.
Kohesi Bond’s broad range of adhesives is specifically designed to suit various sealing, coating, bonding, and encapsulating applications. These adhesives have unique properties that are essential in designing high-quality miniature electronic devices. Additionally, we can customize our formulas to meet your application requirements.
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Utsav Shah is a 34-year-old entrepreneur with a passion for scientific discovery. Utsav’s journey began with a deep dive into materials science, earning degrees from USC and the Institute of Chemical Technology. He’s the visionary founder of Kohesi Bond, a top-rated adhesive manufacturer, and Cenerge Engineering Solutions, a leader in heat exchangers and cryogenic pumps. With over a decade of experience, Utsav consults across various industries, ensuring they have the perfect adhesive solution for their needs. Connect with him on LinkedIn!