What Is Surface Micromachining?

Laser technology is one of the four major inventions in the 20th century that are famous for atomic energy, semiconductors, and computers. For more than 40 years, with the increasing demand for small electronic products and microelectronic components, precision processing of processed materials (especially polymer materials and high melting point materials) has become the fastest-growing laser in industrial applications. One of the fields.

Laser micromachining

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Laser technology is one of the four major inventions in the 20th century that are famous for atomic energy, semiconductors, and computers. For more than 40 years, with the increasing demand for small electronic products and microelectronic components, precision processing of processed materials (especially polymer materials and high melting point materials) has become the fastest-growing laser in industrial applications. One of the fields.

Chinese name

Laser micromachining

Application

Microelectronics, micromechanics and micro-optical processing

Features

More precise, more accurate and faster

Tool

laser

Laser processing is an important application in the laser industry. Compared with conventional mechanical processing, laser processing is more precise, accurate and faster. This technology uses the characteristics of the interaction between laser beams and substances to process various materials including metals and non-metals. It involves welding, cutting, marking, punching, heat treatment, forming and other processing processes. The unique characteristics of the laser make it an ideal tool for microprocessing. It is currently widely used in three major fields: microelectronics, micromechanics and microoptical processing.

Laser processing technology is a processing technology that uses the characteristics of the interaction between laser beams and materials to cut, weld, surface treat, punch and micro-process materials (including metals and non-metals).

Glass laser processing drawings (4 photos)

Laser processing has its unique characteristics:

(1) Wide range: Carving and cutting on almost any material.

(2) Safe and reliable: non-contact processing is adopted, which will not produce mechanical squeeze or mechanical stress on the material.

(3) precise and meticulous; processing accuracy can reach 0.01mm.

(4) Consistent effect: Ensure the same batch processing effect.

(5) High-speed and fast: It can immediately perform high-speed engraving and cutting according to the graphics output by the computer, and the speed of laser cutting is much faster than the speed of wire cutting.

(6) Low cost: Not limited by the number of processing, laser processing is cheaper for small batch processing services.

(7) Small cutting gap: The laser cutting slit is generally between 0.02mm-0.05mm.

(8) The cutting surface is smooth: The cutting surface of laser cutting has no burrs.

(9) Thermal deformation is small; the laser cutting has a narrow slit, high speed, and energy concentration, so the heat transferred to the material to be cut is small, and the deformation of the material is also very small.

Micropores have been widely used in industry, and there are two main ways to form them:

The first is the use of infrared lasers: the material on the surface of the material is heated and vaporized (evaporated) to remove the material. This method is often called thermal processing. A YAG laser (wavelength: 1.06 m) is mainly used.

The second is the use of ultraviolet lasers: high-energy ultraviolet photons directly destroy the molecular bonds on the surface of many non-metallic materials and cause molecules to leave the object. This method does not generate high heat, so it is called cold processing. 355nm). ^[1]