Laser welding is a technology that uses the heat generated by a laser beam to melt plastic contact surfaces, thereby bonding thermoplastic sheets, films or molded parts together. Laser welding technology can be useful when the plastic parts being bonded cannot withstand vibration, or when water and air tightness is very high, or when a sterile and dust-free environment is required (such as medical devices and food packaging). Laser welding technology is fast, especially suitable for the assembly line processing of automotive plastic parts. In addition, for those complex geometries that are difficult to bond using other welding methods, laser welding technology can be considered.


Laser welding is a joining solution that enables clean, particle-free joining. Laser welding can join various materials together. Laser welding technology has evolved as products continue to evolve, shrink in size, and achieve higher standards of performance.


Laser welding is often used in applications that require particle-free connections and fast lead times. Bends and defective parts can be laser welded, and complex shapes and parts can be pre-assembled prior to laser welding. The laser welding process causes no movement or vibration during the welding cycle, so it can be used to weld delicate internal components.


Laser welding plastic technology is a very specialized bonding technology. When high-speed welding and precision welding or aseptic welding are required, this can give full play to the best advantages of laser welding. The main application areas of laser welding technology are medical, automotive, electronics and packaging.


Hecho supply the solution for the Plastic Laser Welding Fiber Optic Cable and various customized Optical Fibers for Industrial and Medical application.

With 20 years of production experience and strong research and development capabilities, to meet the differentiated needs of customers in different industries. 

Fundamentals of Lithography

Semiconductor devices

Figure 1 shows a typical lithography process for defining shallow trench isolation features. This process includes the following steps:

1. Substrate Cleaning and Preparation

2. Form a thermal oxide layer and deposit a layer of silicon nitride on a clean substrate

3. Deposit a carbon hard mask followed by a layer of anti-reflection material

4. Deposit a layer of photoresist

5. Pre-baked photoresist

6. Align the substrate/resist and reticle and expose the photoresist using UV radiation and 4x-5x imaging. Repeat steps and scan

7. Post-exposure bake

8. Develop pattern in photoresist and hard bake to remove residual solvent

9. Perform an etch to open the Dielectric Anti-Reflection Coating (DARC) and hardmask patterns, and remove the photoresist and DARC

10. Perform an etch to open trenches in the substrate and remove the hardmask

11. Clean the surface



Deep UV Lithography

Deep UV lithography

DUV technology for lithography is entirely based on projection optics, as the pattern on the photomask is much larger than the final pattern formed on the photoresist. The optical system in a 193 nm lithography tool is called a catadioptric system. The term means it uses lens (refractive) and reflective (reflection) elements to direct and condition the light from the laser



Extreme UV Lithography

EUV lithography

EUV lithography is being developed to meet single-exposure patterning requirements for sub-22nm feature sizes (Figure 3). What makes this technology unique is the nature of the light source. See Extreme UV Lithography for more information.


Hecho Fiber specializing in design and manufacture Fiber Optic Bundles and Fiber Optic Light Sources for over 18 years, the Fiber Products are widely used for Semiconductor filed, such as Laser Direct Imaging LDI Fiber Bundle, Fiber Optic Line Lights for AOI, and so on. OEM and ODM service is available to meet the differentiated needx of different customers. 

In October 2024, LVSUN will proudly present its latest innovative multi-port charger product designs at the Hong Kong GSC Exhibition, drawing significant attention from industry professionals. The exhibition will focus on LVSUN’s multi-port charging solutions ranging from 30W to 2000W, highlighting the company’s leadership and commitment to continuous innovation in the charging technology sector.

 

Leading the Trend with Innovative Design

LVSUN continually updates its charging product designs to provide users with a convenient and efficient charging experience. The showcased multi-port chargers can charge multiple devices simultaneously, meeting users' everyday charging needs. Whether it’s smartphones, tablets, or laptops, LVSUN's multi-port chargers efficiently support a variety of devices.

 

Flexible Power Options

LVSUN's product range spans from 30W to 2000W, allowing users to choose the most suitable product based on their needs. For home users, we offer low-power charging solutions for daily use, while the 2000W products cater to commercial users requiring high-power charging solutions for heavy loads.

 

Intelligent Protection Technology

LVSUN's multi-port products incorporate advanced intelligent protection technologies to prevent overcharging, short circuits, and overheating, ensuring a safe and reliable charging experience for every user.

 

Commitment to Green and Sustainable Practices

Alongside technological innovation, LVSUN adheres to green and sustainable principles. Our designs prioritize functionality, safety, and environmental impact, utilizing sustainable materials and energy-efficient designs to minimize environmental impact.LVSUN looks forward to sharing our innovative products and ideas with industry partners. We welcome all attendees to visit our booth 6P20 of Global Sources Consumer Electronics 2024 to learn more about our new series of multi-port chargers.

 

LVSUN looks forward to sharing our innovative products and ideas with industry partners. We welcome all attendees to visit our booth 6P20 of Global Sources Consumer Electronics 2024 to learn more about our new series of multi-port chargers.

ARABLAB, one of the premier scientific exhibitions in the region, kicked off its first day with tremendous success. Stand 845 at Sheikh Saeed Hall S1, CIQTEK, became a hub of activity as attendees flocked to explore the latest innovations in scientific instrumentation.

 

At Stand 845, visitors had the opportunity to engage with a team of experts and experience firsthand a range of high-performance products presented by CIQTEK, a leading provider of scientific instruments. The highlights of CIQTEK's showcase included:

 

1. Scanning Electron Microscopes (SEM): With remarkable resolution and imaging capabilities, these instruments offer researchers an invaluable tool for studying samples at the microscale. The CIQTEK team shared insights into the various applications of SEM, ranging from material science to life sciences.

 

2. Electron Paramagnetic Resonance (EPR) Spectroscopy: The EPR spectroscopy systems offered by CIQTEK captivated attendees with their ability to investigate the electronic structure and properties of materials. This powerful technique enables scientists to delve into the world of spin dynamics, free radicals, and magnetic materials, opening new avenues for research in chemistry, physics, and biomedicine.

 

3. Scanning NV Probe Microscopes: CIQTEK's cutting-edge scanning NV probe microscopes generated significant interest among visitors. These instruments utilize nitrogen-vacancy (NV) centers in diamond to enable high-resolution imaging and spectroscopy at the nanoscale. With applications in nanotechnology, and materials characterization, the possibilities with NV probe microscopes are truly remarkable.

 

4. BET Surface Area & Pore Analyzers: Attendees at Stand 845 had the chance to explore CIQTEK  BET surface area and pore analyzers. These instruments deliver crucial insights into the porosity, surface area, and adsorption characteristics of various materials. From catalyst development to pharmaceutical research, the BET analyzers showcased CIQTEK's commitment to facilitating critical breakthroughs in multiple fields.

 

The CIQTEK team engaged in lively discussions with researchers, scientists, and industry professionals, sharing technical expertise and exploring collaborative opportunities. Attendees praised CIQTEK's commitment to innovation, reliability, and unmatched performance in the scientific instrumentation market.

 

As ARABLAB continues to unfold, visitors are eagerly anticipating further insights and demonstrations from CIQTEK's range of products. Stand 845 remains a must-visit destination, offering a unique opportunity to interact with experts and explore groundbreaking technologies shaping the future of scientific research

CIQTEK Successfully Demonstrates its Benchtop EPR Spectroscopy System at ACERT Workshop

[Cornell University], [Fri. Sept. 13 - Sun. Sept. 15, 2024]

CIQTEK, a leading provider of advanced scientific instrumentation, showcased its cutting-edge Benchtop Electron Paramagnetic Resonance (EPR) Spectroscopy, the EPR200M, at the recent workshop held at the National Resource for Advanced Electron Spin Resonance Spectroscopy (ACERT). The workshop, organized by Cornell University in collaboration with CIQTEK, brought together researchers, industry experts, and practitioners to explore the latest advancements in EPR technology.

 CIQTEK Successfully Demonstrates its Benchtop EPR Spectroscopy System at ACERT Workshop

CIQTEK Successfully Demonstrates its Benchtop EPR Spectroscopy System at ACERT Workshop

During the live demonstration session, attended by over 20 interested attendees, CIQTEK's team presented the features and capabilities of the EPR200M system.

 

CIQTEK Successfully Demonstrates its Benchtop EPR Spectroscopy System at ACERT Workshop

CIQTEK Successfully Demonstrates its Benchtop EPR Spectroscopy System at ACERT Workshop

One of the highlights of the demonstration was the on-site sample measurement performed for a visiting delegation from France. The EPR200M showcased its versatility by delivering accurate and reliable results, impressing the attendees with its analytical capabilities, allowing researchers to obtain valuable insights into the electronic structure, magnetic properties, and dynamics of materials across a wide range of disciplines, including chemistry, materials science, biophysics, and more.

 CIQTEK Successfully Demonstrates its Benchtop EPR Spectroscopy System at ACERT Workshop

The ACERT workshop facilitated valuable discussions and knowledge exchange among participants, fostering collaborations and advancements in EPR technology research. CIQTEK's participation and successful demonstration further solidified its position as a trusted provider of innovative scientific solutions.

CIQTEK Successfully Demonstrates its Benchtop EPR Spectroscopy System at ACERT Workshop

Electron paramagnetic resonance (EPR), also known as electron spin resonance (ESR), is a sophisticated spectroscopic technique used to probe paramagnetic materials' electronic and magnetic properties. In this blog, we will explore the concepts, fundamentals, and applications of EPR. 

 

What is Electron Paramagnetic Resonance:

Electron paramagnetic resonance focuses on the behavior of unpaired electrons in materials with magnetic moments. The central premise of electron paramagnetic resonance is that when these paramagnetic materials are subjected to a magnetic field, their electrons occupy different energy levels due to their spin properties. Irradiating a sample with microwave radiation at a resonant frequency induces transitions between these energy levels, providing valuable information about the electronic structure, dynamics, and interactions of the material.

 

Electron Paramagnetic Resonance Principle:

EPR spectroscopy relies on quantum mechanical principles and the interaction of electron spins with external magnetic fields. Unpaired electrons have a spin quantum number, which determines their intrinsic angular momentum. When placed in a magnetic field, these electron spins are aligned either parallel or anti-parallel to the magnetic field, resulting in different energy levels. Resonance occurs when the energy difference between these energy levels matches the energy of the incident microwave radiation. By adjusting the strength of the magnetic field or the frequency of the microwaves, resonance conditions can be achieved and studied.

 

What is EPR Spectroscopy:

EPR spectroscopy accurately characterizes electron spins and their interactions in paramagnetic systems. Very detailed spectra can be obtained by measuring the absorption or emission of microwave radiation. These spectra provide information on a variety of key parameters, including the g factor (anisotropy factor), linewidth (related to electron-electron interactions), relaxation time (describes the spin-lattice and spin-spin relaxation processes), and hyperfine coupling (the interaction of the electron spins with nearby nuclei). Through careful analysis of these parameters, researchers can derive valuable insights into the electronic structure, chemical environment, and dynamic behavior of the materials under study.

 

CIQTEK EPR Spectroscopy:

With state-of-the-art innovations, the CIQTEK EPR Spectrometer performs high-sensitivity and high-resolution measurements, offering unprecedented accuracy and a wide range of experimental possibilities. The system integrates state-of-the-art magnet design, microwave technology, and data analysis algorithms to enable researchers to explore complex phenomena with extraordinary precision. Whether in materials science, chemistry, or biological research, the CIQTEK EPR spectrometer opens new avenues for studying paramagnetic materials and their applications.

Check CIQTEK Website: https://www.ciqtekglobal.com/

CIQTEK EPR Spectrometer

CIQTEK EPR Spectroscopy Customer Stories

Electron paramagnetic resonance and EPR spectroscopy enable scientists to study the electronic and magnetic properties of paramagnetic materials with great precision.

 

For a variety of materials, floor grinding is an essential step in surface preparation, restoration, and finishing. To achieve the best results, different surfaces call for different approaches. It is important to know which procedures are best for each material in order to ensure efficiency, durability and good looks.

 

One of the most used ground surfaces, particularly in commercial and industrial contexts, is concrete. Usually, the grinding procedure entails the use of TransGrind diamond grinding tools to smooth out surface irregularities, level the surface, and get it ready for coating or polishing. Initially, surface imperfections are removed using coarser diamond grits; smoothing and polishing are down with finer grit grinding tooling. Selecting the appropriate diamond tools for concrete requires careful consideration of both the material’s hardness and its surface condition.

 

Compared to concrete, marble and other natural stones, such as granite or travertine, are softer and more brittle, so handling them with extra care is necessary. It is advised to use resin-bonded diamond pads to prevent surface damage or scratches. Marble is usually ground using a lower grit pad first to remove any etching or scratches, them progressively finer grits to get a polished, smooth surface. The inherent brilliance of the stone is preserved by the frequent application of water to cool the surface and minimize dust throughout the grinding process.

 

floor grinding tools

 

The mix of marble chips with cement or epoxy to create terrazzo floor is another surface that gains a great deal from careful grinding methods. Usually, the first grinding step entails eliminating any lippage or unevenness in the tile spacing. The next steps involve honing and polishing, which call for finer diamond pads to accentuate the terrazzo surface’s sheen. Terrazzo frequently has both hard and soft components, therefore it’s important to carefully balance the speed and pressure of the grinding process to prevent over-grinding the softer components.

 

Although they are less common, wood floors can occasionally need to be ground in order to remove old coatings, level the surface, or get ready for finishing. Compared to stone or concrete, wood is ground in a far more sensitive manner. Diamond tools are replaced with sandpapers with different grits of abrasive particles. Coarse grits are best for removing the top layer and any defects; finer grits are used for smoothing. It’s important to work with the grain of the wood to avoid gouging or damaging the surface.

 

To attain the ideal results, different grinding procedures are needed for different surface materials, each of which brings unique obstacles. Successful floor grinding depends on knowing the characteristics of the material being worked with and using the right tools and techniques, whether it is concrete, terrazzo, natural stone, or wood. Using the right technique guarantees a more effective and efficient grinding operation while also improving the surface’s beauty and durability.

 

Diamond grinding tools are indispensable for achieving accuracy and efficiency in surface preparation and material removal. The design of these instruments’ diamond segments has a significant impact on their performance. Exploring several segment types - such as bar, arrow, round, and turbo - we can better understand how to choose the suitable too for out specific needs.

 

Bar segments are among the most common types used in TransGrind diamond grinding tooling. Characterized by their straight, rectangular shape, bar segments are designed for aggressive material removal. They are particularly effective on hard surfaces like concrete and stone, where rapid grinding is required. The straight edges of bar segments help in achieving a flat and level surface, making them suitable for initial grinding and surface preparation tasks.

 

Arrow segments features a distinct arrowhead shape, which enhances their ability to cut through tough materials. The design helps in directing the flow of debris away from the grinding surface, improving efficiency and reducing clogging. Arrow segments grinding tools are often used for grinding uneven surfaces and removing coatings. Their aggressive cutting action makes them ideal for projects that demand high material removal rates and effective debris management.

 

TransGrind diamond grinding tooling

 

Round segments are designed with a curved, circular shape, providing a more gentle and even grinding action. This type of segment is commonly used for polishing and finishing tasks. The smooth, rounded edges of round segment diamond grinding tooling help in achieving a consistent surface finish with minimal chipping or gouging. They are ideal for applications where a smooth and refined surface is essential, such as in decorative concrete work or final surface preparation.

 

Turbo segments feature a spiral or turbo pattern that enhances their ability to channel dust and debris away from the grinding surface. The design improves cooling and reduces the risk of clogging, making turbo segments ideal for fast and efficient grinding. They are commonly used in floor grinding surface preparation tasks where a balance between aggressive material removal and a smoother finish is needed.

 

To determine if your roller shutter motor is dead, you can try the following steps:

 

Check the power source: Ensure that the motor is properly connected to a power source and that there is a steady supply of electricity. If the power source is not working, the motor will not be able to operate.

 

Test the remote control: If the remote control tubular motor is controlled by a remote control, check the batteries and try using a different remote control to make sure it's not the cause of the problem.

 

Check the motor fuse: If the motor fuse has blown, the motor will not be able to receive power and will not operate. Check the manual to determine the location of the fuse and replace it if necessary.

 

Check the wiring: Check the wiring that connects the motor to the control system and the power source to ensure that it's properly connected and not damaged.

 

Listen for any noise: If the motor is not working, listen for any noise that may indicate that it is receiving power but not functioning properly.

 

If the motor still does not work after checking these items, it may be dead and need to be replaced. In some cases, the motor may be repairable, but it's recommended to consult a professional for a proper diagnosis and repair.

 

 

roller shutter motor