ISOCELL Image Sensor | Samsung Semiconductor USA - cmos image sensor

 2024-10-09 03:37:36

At the core of the MX7 are fourteen independently controlled Z and theta motors, making it one of the world's first multi-axis pick-and-place technologies. Each of these motors is individually guided, enabling much more reliable and repeatable placement in both the Z and theta axes. This level of granular control is unprecedented in the industry and opens up new possibilities for high-precision assembly.

To prevent component damage, each of the seven placement nozzles operates with a less than 2-newton placement force. At the same time, they eject a highly controlled stream of air during component placement, virtually eliminating the risk of unnecessary nozzle impact.

What are the 3objectivelenses on amicroscope

The purposes of optical microscopes are broadly classified into two; "biological-use" and "industrial-use". Using this classification method, objective lenses are classified into "biological-use" objectives and "industrial-use" objectives. A common specimen in a biological use is fixed in place on the slide glass, sealing it with the cover glass from top. Since a biological-use objective lens is used for observation through this cover glass, optical design is performed in consideration of the cover glass thickness (commonly 0.17mm). Meanwhile, in an industrial use a specimen such as a metallography specimen, semiconductor wafer, and an electronic component is usually observed with nothing covered on it. An industrial-use objective lens is optically designed so as to be optimal for observation without any cover glass between the lens end and a specimen.

Meanwhile, an objective lens for which the degree of chromatic aberration correction to the secondary spectrum (g ray) is set to medium between Achromat and Apochromat is known as Semiapochromat (or Flulorite).

Types ofobjectivelenses

The MX7 mounthead takes flexibility to the next level, enabling the handling of component sizes up to 45×45×15 mm or 150×40×15 mm, and down to 01005 (0.4×0.2 mm). This amounts to a substantial increase in the range of component types and sizes mounted by a single platform, making the MYPro A40 a versatile solution for a wide range of applications. Whether you're dealing with fine-pitch CSPs, FCs, BGAs, or larger, odd-shaped components, the MX7 can handle them all while minimizing the risk of damaging, mis-picking or dropping parts.

A combination of finely controlled vision and motion systems, together with a robust gantry platform, contributes to significantly lower maintenance and calibration requirements.

Objectivelensmicroscopelabeled

A variety of microscopy methods have been developed for optical microscopes according to intended purposes. The dedicated objective lenses to each microscopy method have been developed and are classified according to such a method. For example, "reflected darkfield objective (a circular-zone light path is applied to the periphery of an inner lens)", "Differential Interference Contrast (DIC) objective (the combination of optical properties with a DIC( Nomarski）prism is optimized by reducing lens distortions)", "fluorescence objective (the transmittance in the near-ultraviolet region is improved)", "polarization objective (lens distortions are drastically reduced)", and "phase difference objective (a phase plate is built in) are available.

Although the individual MX7 nozzles are spaced just 20 mm apart, the system is capable of mounting components up to six times larger than those placed by previous high-speed mountheads.

Objectivelensmicroscopefunction

A new range of unique tool types on the MX7 mounthead, together with new toolbanks for tool changes, ensures more precise component handling for a wider array of applications. Each nozzle is also equipped with a unique ID to improve process traceability and analysis.

Objective lenses are roughly classified basically according to the intended purpose, microscopy method, magnification, and performance (aberration correction). Classification according to the concept of aberration correction among those items is a characteristic way of classification of microscope objectives.

Objectivelensmicroscopenames

Ocular lensmicroscope

High powerobjective microscopefunction

To solve these challenges, a number of innovative engineering solutions had to be developed from scratch, explains Tanaka. “First, we had to be very disciplined in reducing the weight of all the moving parts. Then, it was even more challenging to both miniaturize and find the ideal placement for the touch detection mechanism to ensure enhanced usability: one of the real trademarks of every Mycronic solution.”

In the optical design of microscope objectives, commonly the larger is an N.A. and the higher is a magnification, the more difficult to correct the axial chromatic aberration of a secondary spectrum. In addition to axis chromatic aberration, various aberrations and sine condition must be sufficiently corrected and therefore the correction of the secondary spectrum is far more difficult to be implemented. As the result, a higher-magnification apochromatic objective requires more pieces of lenses for aberration correction. Some objectives consist of more than 15 pieces of lenses. To correct the secondary spectrum satisfactorily, it is effective to use "anomalous dispersion glass" with less chromatic dispersion up to the secondary spectrum for the powerful convex lens among constituting lenses. The typical material of this anomalous dispersion glass is fluorite (CaF2) and has been adopted for apochromatic objectives since a long time ago, irrespective of imperfection in workability. Recently, optical glass with a property very close to the anomalous dispersion of fluorite has been developed and is being used as the mainstream in place of fluorite.

Axial chromatic aberration correction is divided into three levels of achromat, semiapochromat (fluorite), and apochromat according to the degree of correction. The objective lineup is divided into the popular class to high class with a gradual difference in price. An objective lens for which axial chromatic aberration correction for two colors of C ray (red: 656,3nm) and F ray (blue: 486.1nm) has been made is known as Achromat or achromatic objective. In the case of Achromat, a ray except for the above two colors (generally violet g-ray: 435.8nm) comes into focus on a plane away from the focal plane. This g ray is called a secondary spectrum. An objective lens for which chromatic aberration up to this secondary spectrum has satisfactorily been corrected is known as Apochromat or apochromatic objective. In other words, Apochromat is an objective for which the axial chromatic aberration of three colors (C, F, and g rays) has been corrected. The following figure shows the difference in chromatic aberration correction between Achromat and Apochromat by using the wavefront aberration. This figure proves that Apochromat is corrected for chromatic aberration in wider wavelength range than Achromat is.

An optical microscope is used with multiple objectives attached to a part called revolving nosepiece. Commonly, multiple combined objectives with a different magnification are attached to this revolving nosepiece so as to smoothly change magnification from low to high only by revolving the nosepiece. Consequently, a common combination lineup is comprised from among objectives of low magnification (5x, 10x), intermediate magnification (20x, 50x), and high magnification (100x). To obtain a high resolving power particularly at high magnification among these objectives, an immersion objective for observation with a dedicated liquid with a high refractive index such as immersion oil or water charged between the lens end and a specimen is available. Ultra low magnification (1.25x, 2.5x) and ultra high magnification (150x) objectives are also available for the special use.

Mount a far wider range of components at 48% higher top speeds. The MX7 mounthead technology is the fast-beating heart of the next-generation MYPro A40 pick-and-place machines, making it possible to simultaneously boost production volumes and take on more jobs. Driven by seven high-precision nozzles and fourteen independent motors, the MX7 represents a leap forward in performance and versatility.

Despite its gentle touch, the MX7 mounthead unit is capable of up to 3G acceleration forces, making quick work of even the most complex board layouts.

An objective lens is the most important optical unit that determines the basic performance/function of an optical microscope To provide an optical performance/function optimal for various needs and applications (i.e. the most important performance/function for an optical microscope), a wide variety of objective lenses are available according to the purpose.

Photography or image pickup with a video camera has been common in microscopy and thus a clear, sharp image over the entire field of view is increasingly required. Consequently, Plan objective lenses corrected satisfactorily for field curvature aberration are being used as the mainstream. To correct for field curvature aberration, optical design is performed so that Petzval sum becomes 0. However, this aberration correction is more difficult especially for higher-magnification objectives. (This correction is difficult to be compatible with other aberration corrections) An objective lens in which such correction is made features in general powerful concave optical components in the front-end lens group and powerful concave ones in the back-end group.

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“Fortunately, every engineer on our team has more than a decade’s experience solving exactly these challenges,” he concludes. “Everyone knew how long it takes to optimize a new head and system, so we factored in all the variables prudently and executed each plan carefully. And now, it’s paying off for Mycronic customers. I’m convinced the MYPro A40 and MX7 will impress the industry, taking PCB assembly to completely new heights.”

The MX7 enables top placement speeds of 59,000 cph – a full 48% speed increase compared to its predecessor. In beta tests, the productivity increases are significantly higher, thanks to the platform’s ability to handle a wider range of components with less downtime in actual production conditions.

Increased speed was one of the key design objectives in the development of the new platform, resulting in a 48% increase in top placement speeds compared to previous high-speed mountheads. This boost in performance is made possible by an entirely new servo platform, which updates at a rate of 80,000 times per second in order to optimize every movement. In combination with state-of-the-art vision and pressure sensor systems, it allows for rapid pick-and-place operations without compromising accuracy or reliability.

Mycronic is a global supplier of high precision production equipment, and together with our customers we are committed to extending the frontiers of electronics technology. Headquartered in Sweden, with more than 2,000 employees and represented in more than 50 countries.

A new generation of flexible, high-speed pick-and-place technologies is here. The result of several years of in-house development, the new MX7 mounthead technology goes further than ever before in bridging the gap between high-mix and high-volume PCB assembly.