Etching Foundry Services: Anisotropic and Isotropic Etching for Diverse Micro/Nano Structures is closely related to the way MEMS and semiconductor dev...

Electron-Beam Evaporation: A Core Enabler for Micro/Nano Fabrication and MEMS Foundry Services is closely related to the way MEMS and semiconductor de...

Pattern Transfer Failed? Aligning Lithography and Etching the Right Way is closely related to the way MEMS and semiconductor devices are designed, pro...

Insufficient Film Uniformity? Consider Magnetron Sputtering or PECVD is closely related to the way MEMS and semiconductor devices are designed, proces...

Full-Process Micro/Nano Foundry Services: One-Stop MEMS Solutions is closely related to the way MEMS and semiconductor devices are designed, processed...

Chipping During Micro Drilling? Your Dicing Method or Material Selection May Be the Cause is closely related to the way MEMS and semiconductor devices...

Full Micro/Nano Fabrication Workflow: How Eight Processes and Five Material Categories Work Together in Chip Manufacturing is closely related to the w...

Wafer Bonding Technologies: Achieving Atomic-Level Integration Between Silicon and SOI Wafers is closely related to the way MEMS and semiconductor dev...

Wafer Chipping During Dicing? Try Thin-Then-Dice Process Optimization is closely related to the way MEMS and semiconductor devices are designed, proce...

With the rapid development of MEMS technology, functional integration at miniature scales has become a core direction for industry breakthroughs. Silicon nitride membrane windows, as key basic components in MEMS devices, are deeply integrated into the full MEMS fabrication flow thanks to their excellent material properties. They support the development and application of various high-performance MEMS devices and serve as an important bridge between MEMS processing and device function realization.

When we admire thinner smartphones and the rapidly increasing computing power of AI chips, few people notice an invisible core technology hidden inside these tiny devices: wafer bonding. It is not discussed as often as chip design or lithography, but it is a critical throat technology in advanced packaging and directly affects the performance ceiling, size and power consumption of chips.

MEMS devices integrate microelectronics and micromechanics and are widely used in consumer electronics, medical health, autonomous driving, optical communications and other key fields. Their performance depends directly on high-performance thin-film materials and precision processing technologies. Thin-film materials provide structural support, functional response and reliability assurance for MEMS devices. Together with precise and controllable fabrication processes, they form the foundation of MEMS manufacturing and drive devices toward miniaturization, higher sensitivity and higher reliability.

As semiconductor devices evolve toward three-dimensional and highly integrated structures, MEMS, 3D NAND memory and advanced packaging increasingly require silicon structures with higher aspect ratios. High-aspect-ratio silicon etching and drilling have become core bottlenecks limiting device performance. Higher aspect ratios can cause etch rate reduction, sidewall roughness and hole-shape distortion. Achieving high precision, high stability and low-damage processing has therefore become an urgent industry challenge.

In the microscopic world of semiconductor manufacturing, etching is like nanoscale carving. Its core function is to accurately reproduce the pattern transferred by lithography onto the substrate material by selectively removing unnecessary regions. Etching creates nanoscale structures with high aspect ratios and small dimensional errors and is a key process for chips, 3D NAND and other devices. From linewidths one-thousandth the width of a human hair to microchannels with aspect ratios above 100:1, this precision depends on the coordination of physical and chemical mechanisms and meticulous control of process parameters.

MEMS devices serve as core carriers connecting the physical and digital worlds, and performance breakthroughs depend on the deep integration of semiconductor materials and microfabrication processes. Compared with visible indicators such as dimensional accuracy and electrical parameters, hidden mismatches between intrinsic material properties and process details often become key bottlenecks that limit precision, stability and reliability. These factors run through the entire design and manufacturing flow and must be carefully controlled to achieve excellent device performance.

In the micro/nano world of semiconductor and MEMS manufacturing, patterning is the core battlefield that determines device precision and performance. Lithography and etching work like a “drafter” and a “carver”: the former accurately reproduces the design blueprint, while the latter faithfully sculpts the physical structure. Together, they transform macroscopic design into nanoscale devices and build the foundation of modern electronics.

Micro/nano manufacturing is like a form of precision time carving, condensing billions of transistors onto a wafer only a few inches across. From the circuit blueprint defined by lithography to the final separation of chips by dicing, every step reflects human control over the microscopic world. This manufacturing journey across the nanoscale is not only a continuous evolution of technology, but also a foundation of modern technological civilization.

In micro/nano fabrication, thin-film deposition is one of the core processes and directly determines device performance and reliability. Physical vapor deposition (PVD) and chemical vapor deposition (CVD) are two mainstream coating technologies. PVD realizes atomic deposition through physical state transformation, while CVD grows films through gas-phase chemical reactions. Each technology has suitable application scenarios, and the key to selection is matching process characteristics with actual manufacturing requirements.

In semiconductor manufacturing fields such as MEMS devices, power devices and advanced packaging, deep silicon etching is one of the core processes for enabling device miniaturization and higher performance. However, the frequent occurrence of “black silicon” during etching has become a key bottleneck affecting process yield and device reliability. Black silicon essentially refers to micron-scale rough protrusions or porous structures formed on the silicon surface after etching. It can degrade electrical performance and also affect subsequent packaging and interconnect quality. This article explains the causes of black silicon and introduces three effective surface passivation strategies for achieving smooth, mirror-like etched sidewalls.

Silicon Etching: A Core Technology Supporting MEMS Fabrication is closely related to the way MEMS and semiconductor devices are designed, processed an...

Full-process micro/nano fabrication solves MEMS manufacturing challenges by coordinating design, material preparation, lithography, etching, thin-film deposition, packaging, testing and quality control.

Semiconductor wafers are the core substrates of chip manufacturing. The article explains wafer material types, silicon wafer advantages, compound semiconductors, manufacturing flow and wafer-size development.

Five mainstream microfabrication technologies—lithography, etching, deposition, ion implantation and bonding—each have distinct advantages, limitations and application scenarios in semiconductor and MEMS manufacturing.

Stiction is a key yield and reliability issue in MEMS fabrication. The article explains van der Waals, capillary and electrostatic forces and discusses process, surface, design and environmental solutions.

Wafer manufacturing involves silicon purification, single-crystal growth, slicing, grinding, polishing and cleaning. MEMS processes such as deposition, lithography, etching and bonding further transform wafers into functional devices.

No single process alone defines semiconductor micro/nano fabrication. Lithography provides patterns, etching transfers structures, deposition builds functional films, and process integration determines final device performance.

Semiconductor wafer foundry processes transform wafer substrates into functional chips through cleaning, lithography, etching, deposition, doping, planarization, inspection and packaging-related steps.

Etching is a key MEMS fabrication process for transferring patterns and forming microstructures. The article explains dry and wet etching, process control and applications in sensors, actuators and microchannels.

MEMS wafer foundry turns microscale designs into practical devices through lithography, etching, deposition, bonding, packaging and testing, supporting sensors, actuators and application-specific microdevices.

Semiconductor coating creates insulating, protective and functional films for chips. It supports reliability, transparent conductive films, thermal management, advanced nodes and greener manufacturing.

MEMS coating deposits functional thin films on microstructures to provide conductivity, insulation, wear resistance, corrosion protection and biocompatibility for practical MEMS devices.

Micro/nano fabrication supports chip scaling, advanced packaging and customized semiconductor innovation through lithography, etching, interconnect, coating and MEMS technologies.

Silicon wafers provide the foundation for chips, while micro/nano fabrication patterns and processes that foundation into high-performance devices. Their coordinated development drives chip innovation.

Magnetron sputtering is a key coating process in semiconductor micro/nano fabrication. It provides dense, adherent and controllable films for interconnects, functional layers, power semiconductors and optoelectronic devices.

Wafer dicing separates circular wafers into individual dies while protecting chip edges and circuits. The article compares blade, laser, stealth and plasma dicing technologies.

MEMS fabrication combines lithography, etching, deposition, bonding, release, packaging and testing to manufacture microsensors, actuators and complex microstructures.

Semiconductor materials provide the foundation for chips, while micro/nano fabrication transforms them into functional devices. Together they support computing, communication, sensing and intelligent technologies.

Micro/nano foundry services integrate design support, process development, wafer processing, packaging and testing, helping customers turn micro-scale ideas into manufacturable MEMS and semiconductor devices.

Lithography has evolved from micrometer-scale optical patterning to nanoscale DUV, EUV, electron-beam and nanoimprint technologies. The article discusses resolution, cost, process control and future challenges.

Wafer thinning and polishing control wafer thickness, flatness, roughness and stress. They are essential for advanced packaging, MEMS devices and reliable semiconductor manufacturing.

MEMS micro/nano fabrication extends semiconductor manufacturing from planar electronic devices to complex microstructures, supporting sensors, integration, advanced packaging and new device functions.

Photomasks carry circuit patterns for lithography and directly affect pattern-transfer accuracy. The article explains mask materials, manufacturing steps, inspection, repair and their importance in semiconductor and micro/nano fabrication.

MEMS device performance strongly depends on substrate selection. The article compares silicon, SiC, GaAs, GaN and SOI substrates in terms of mechanical stability, process compatibility, thermal management, cost and applications.

MEMS fabrication relies on lithography, deposition, etching, wafer bonding and packaging to build complex microstructures. The article explains typical device flows, technology trends and challenges in standardization, packaging and reliability.

Thin-film deposition forms nanometer- to micrometer-scale films on substrates and is essential for microelectronics, optoelectronics and MEMS. The article explains PVD, CVD, ALD, epitaxy and future trends in low-temperature, new-material and intelligent deposition.

Deep silicon etching enables high-aspect-ratio trenches, vias and three-dimensional silicon structures. The article covers RIE, DRIE, Bosch and cryogenic processes, typical defects and future trends such as ALE and greener etching.

Etching is a core pattern-transfer process in micro/nano fabrication. The article explains wet and dry etching, key parameters such as selectivity and anisotropy, applications in semiconductors, MEMS and optoelectronics, and trends toward atomic-scale, greener and AI-assisted etching.

Electroplating is a key MEMS manufacturing process for metal microstructures, interconnects, TSV filling and sensor electrodes. Process control in current density, bath chemistry, temperature and agitation is essential for uniform deposition and low-stress structures.

Atomic layer deposition enables conformal films with atomic-scale thickness control, making it valuable for high-aspect-ratio micro/nano structures, MEMS devices, semiconductor manufacturing and advanced optical or energy applications.

Micro/nano fabrication covers material processing and structural manufacturing from micrometer to nanometer scales, supporting semiconductors, MEMS, optoelectronics, biomedical devices and next-generation precision manufacturing.

Quartz glass wet etching uses chemical solutions to form precision microstructures in quartz and glass materials. It is used in optics, microfluidics, MEMS and substrate processing where smooth surfaces and material selectivity are important.

Ion implantation uses high-energy ion beams to modify material surfaces with controlled dose, depth and distribution. It supports precision doping, MEMS sensor optimization and emerging nano-optoelectronic devices.