Japan's well-known semiconductor manufacturer Roma Co., Ltd. (headquarters: Kyoto, Japan) has developed the world's smallest* SMD resistor size 03015 (0.3mm x 0.15mm) that can be mounted in high density on mobile devices such as smart phones. Compared to the 0402 size (0.4mm x 0.2mm) product, which has always been called the boundary of miniaturization, the size of this product has been successfully reduced by 44%.
In recent years, the demand for the smart phone market has been increasing rapidly, and the number of parts for mobile phone products has increased due to its multifunctionality. As a result, the demand for ultra-small components that can be mounted in high density has increased. However, with the existing manufacturing technology, the tolerance of the package size in the dicing process is as large as ±20 μm, and not only this, but also various problems such as patch collapse and the like, and it is considered extremely difficult to develop under the size of 0402 in the industry.
The successful development of this time is not the adoption of traditional resistance manufacturing technology, but the development of a manufacturing system through the unique micro-technique, and at the same time, improved the cutting method, so that the package size tolerance in the cutting process is greatly reduced, only ± 5μm. Increasing the dimensional accuracy not only helps to reduce suction errors during installation, but also uses a gold electrode surface with excellent corrosion resistance, which improves the wettability of the solder and enables stable mounting.
This has made a tremendous contribution to the versatility and miniaturization of various mobile devices such as smartphones that use hundreds of resistors at a time.
ROHM pioneered the development of the world's first rectangular chip resistors in 1976, and then continued to challenge new technologies that break the routine. In the future, ROHM will continue to lead the world in the field of resistance as a pioneering product, continue to expand the lineup of high-quality resistance products, and continue to promote the development of a further miniaturized 0201 size (0.2mm x 0.1mm) chip resistor.
■The main features of the world's smallest chip resistors Using original technology, the world's smallest chip size 03015 size (0.3mm × 0.15mm)
Patch size accuracy increased from ±20μm to ±5μm
Use of gold electrode surface improves solder wettability and reliability
In recent years, the demand for the smart phone market has been increasing rapidly, and the number of parts for mobile phone products has increased due to its multifunctionality. As a result, the demand for ultra-small components that can be mounted in high density has increased. However, with the existing manufacturing technology, the tolerance of the package size in the dicing process is as large as ±20 μm, and not only this, but also various problems such as patch collapse and the like, and it is considered extremely difficult to develop under the size of 0402 in the industry.
The successful development of this time is not the adoption of traditional resistance manufacturing technology, but the development of a manufacturing system through the unique micro-technique, and at the same time, improved the cutting method, so that the package size tolerance in the cutting process is greatly reduced, only ± 5μm. Increasing the dimensional accuracy not only helps to reduce suction errors during installation, but also uses a gold electrode surface with excellent corrosion resistance, which improves the wettability of the solder and enables stable mounting.
This has made a tremendous contribution to the versatility and miniaturization of various mobile devices such as smartphones that use hundreds of resistors at a time.
ROHM pioneered the development of the world's first rectangular chip resistors in 1976, and then continued to challenge new technologies that break the routine. In the future, ROHM will continue to lead the world in the field of resistance as a pioneering product, continue to expand the lineup of high-quality resistance products, and continue to promote the development of a further miniaturized 0201 size (0.2mm x 0.1mm) chip resistor.
■The main features of the world's smallest chip resistors Using original technology, the world's smallest chip size 03015 size (0.3mm × 0.15mm)
Patch size accuracy increased from ±20μm to ±5μm
Use of gold electrode surface improves solder wettability and reliability
Fan Motor,Blower Motor,Condenser Fan,Condenser Fan Motor
Wentelon Micro-Motor Co.,Ltd. , https://www.wentelon.com