ケイツー List of Products and Services

K2 has all the necessary equipment for circuit board manufacturing in-house. Since we can complete all processes without relying on outsourcing, we are able to respond to short delivery times. Additionally, our factory operates on Saturdays, allowing us to count Saturdays as manufacturing days. "We don't accommodate ultra-short delivery times," "We were turned down for consultations on special circuit board manufacturing," "We have concerns about the quality of the circuit boards." We will solve these issues using K2's unique know-how. 【What K2 can do】 ◆ Number of layers We have numerous manufacturing achievements from 1 to 4 layers. ◆ Capable of manufacturing with various materials and specifications We also handle complex specifications such as high-frequency build-up boards and build-up rigid-flex boards. *Depending on the specifications, we can manufacture in as little as one week. For more details, please download our catalog or feel free to contact us.

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We value conversations with our customers and design simple and easy-to-understand printed circuit boards. We have experience in various types of board design, including power supply, analog, and high-frequency boards, and we respond to various requests for component mounting based on quantity and requirements. Our assembly factories also have areas of expertise, so we partner with over 10 factories and coordinate according to the specific needs of each project. We can accommodate requests for ultra-short delivery times in conjunction with board manufacturing. 【Board Design】 ■PADS ■Quadcept ■CR8000 ■CR5000 *For more details, please refer to the PDF materials or feel free to contact us.

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Our company has all manufacturing lines in-house, and our experienced staff is well-versed in each piece of equipment. Good quality is essential to achieve short delivery times and special substrates. By conducting daily inspections and maintenance on each piece of equipment, we can prevent problems before they occur. Additionally, thorough intermediate inspections such as pattern inspections using AOI (Automated Optical Inspection) and continuity checks using flying checkers allow us to detect issues early in the process, preventing defective products from being released and avoiding delays in delivery. 【Quality Improvement Equipment】 ■ DI (Direct Imaging) ■ AOI (Automated Optical Inspection) ■ Flying Checker *For more details, please refer to the PDF document or feel free to contact us.

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Our company is equipped with large-capacity facilities as a prototype manufacturer, allowing us to produce not only small lots but also medium-lot prototypes and medium-volume production with short lead times. Thanks to the 100% operational rate of our large-capacity equipment, we can respond without any issues to sudden requests, even when the quantities are large. We have secured sufficient inventory even during periods when material procurement was difficult, ensuring there are no delays in delivery. 【Features】 - Capable of producing small lots as well as medium-lot prototypes and medium-volume production with short lead times - 100% equipment operational rate - Sufficient inventory secured, with no delays in delivery - Initial costs do not become excessively high - Capable of handling special substrates such as flexible and rigid-flex boards *For more details, please refer to the PDF document or feel free to contact us.

• Other services and technologies

Our company is capable of handling a wide range of special substrates by creatively utilizing various equipment available in-house, including advanced DI (Direct Imaging) equipment. Additionally, since over 90% of our staff are full-time employees, we are able to accumulate a broad knowledge and expertise regarding substrates by inheriting past experiences, allowing us to provide accurate technical advice to our customers. Please feel free to consult us regarding any special substrates. 【Special substrates we can handle】 ■ Build-up substrates ■ Heat dissipation substrates ■ Impedance control substrates ■ Rigid-flex and multilayer flex substrates ■ Cavity substrates ■ Fine patterns *For more details, please refer to the PDF document or feel free to contact us.

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Our company has achieved coverlay processing and contour processing of flexible substrates using our unique know-how with lasers. As a result, we can significantly shorten the manufacturing lead time for flexible substrates and reduce initial costs substantially through "no mold cost." It is also possible to perform corrections for each substrate, ensuring very high processing precision. [Overview] ■ Significant cost reduction through laser processing ■ Supports medium lot production of flexible substrates *For more details, please refer to the PDF document or feel free to contact us.

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Our company is fully equipped with all the necessary facilities for substrate manufacturing, including copper plating and gold plating, allowing us to respond to short delivery times through in-house integrated production. Furthermore, with our unique in-house production management system, we ensure thorough deadline management, eliminating any gaps in the process, and all products are completed on time. Additionally, as a prototype substrate manufacturer, we have a large production line capacity, enabling us to complete medium lot products in a short time frame as well. [Reasons for Achieving Short Delivery Times] ■ All equipment is in-house ■ Operations on Saturdays ■ Quick repeat orders *For more details, please refer to the PDF document or feel free to contact us.

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K2 has all the necessary equipment for circuit board manufacturing in-house, allowing us to complete all processes without relying on outsourcing. K2 does not turn down requests for special circuit board manufacturing, even those requiring high processing technology and precision. For complex cases that have been rejected by other companies, we will find unique solutions based on our established track record and know-how. 【Features】 ◆ Flexible response to detailed customer requests ◆ Thorough data checks contribute to reducing lead times and costs ◆ Short lead time capabilities through in-house integrated production and strict deadline management *For more details, please refer to the materials. Feel free to contact us. 【Exhibition Information】 We will be exhibiting at Nepcon Japan from January 22 (Wednesday) to January 24 (Friday), 2025! Booth: East Hall 2 E10-36. We look forward to your visit!

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Our company possesses a wide range of equipment necessary for circuit board manufacturing, including "copper plating," "gold plating," "impedance measuring instruments," "impedance simulation software," and "resin filling machines." We can produce all types of circuit boards in-house and achieve "same-day delivery" through thorough deadline management. 【Features】 ■ Capable of handling medium lot sizes ■ Significant reduction in delivery times for flexible circuit boards ■ Quick response for repeat orders ■ Capable of accommodating special circuit boards *For more details, please refer to the materials. Feel free to contact us with any inquiries.

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Our company possesses a series of equipment necessary for substrate manufacturing, including plating process equipment and manufacturing lines for build-up substrates. We can also consistently produce special substrates that require advanced processing technology and precision, and we can provide them in a short delivery time. Additionally, our specialized staff will thoroughly respond to inquiries after delivery, such as requests for environmental surveys or questions after substrate manufacturing. 【Features】 ■ Flexible response to detailed customer requests ■ Detailed data checks contribute to reducing delivery times and costs ■ Short delivery times possible through in-house integrated production and thorough delivery management *For more details, please refer to the materials. Feel free to contact us with any inquiries.

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We offer proposals to reduce initial costs by using laser processing for the prototyping of flexible substrates. However, when it comes to medium-sized production runs, it is more cost-effective to create molds. For large quantities that cannot be handled by prototyping manufacturers, and where the initial costs become too high for mass production manufacturers, please leave it to us. We can provide it at a low price. *For more details, please refer to the PDF document or feel free to contact us.

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At K2, we do not create molds or Thomson molds (Victoria type) for small lot production of flexible printed circuits, allowing us to respond to generally time-consuming flexible circuit manufacturing with short lead times. Since there are no costs for creating molds, we can significantly reduce the initial costs, making our prices attractive. Additionally, this method allows for individual correction of each circuit board, which is a benefit for high quality. 【Features】 ■ No mold costs for flexible printed circuits ■ Short lead times ■ High quality *For more details, please refer to the PDF document or feel free to contact us.

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K2 has all the manufacturing equipment necessary for circuit board production fully equipped in-house, achieving 100% operation to realize shorter delivery times and lower costs for special circuit boards and medium-lot products that are difficult for prototype manufacturers to handle. 1. They don't respond to ultra-short delivery times... 2. The initial costs for flexible boards are too high... 3. I was turned down when consulting about special circuit board manufacturing... 4. They don't respond to short delivery times for medium-lot production... 5. There are concerns about the quality of the circuit boards... We solve these five issues faced by the circuit board manufacturing industry with our unique know-how. *Currently offering free samples of special circuit boards to a limited number of 10 companies! For more details, please download the catalog from the form below or contact us.* [Case Studies] ■ Double-sided flexible circuit board ⇒ Achieved shorter delivery times and reduced initial costs by using laser processing instead of molds for shape processing! ■ 4-layer rigid-flex circuit board (without reinforcement plate) ⇒ Normally 7 days, express response in 6 days!

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At K2, a manufacturer specializing in circuit boards, we have all the manufacturing equipment necessary for circuit board production fully equipped in-house. By operating this equipment at 100%, we achieve shorter lead times and lower costs for special circuit boards and medium-lot products, which are difficult for prototype manufacturers to handle. We address five issues faced by the circuit board manufacturing industry: inability to accommodate ultra-short lead times, excessively high initial costs for flexible boards, being turned away for consultations on special circuit board manufacturing, inability to meet short lead times for medium-lot production, and concerns about circuit board quality. *Exclusive to Ipros users! We are currently offering samples of rigid-flex boards and double-sided flexible boards! Please contact us during this opportunity. (Limited quantities available)* 【Case Studies】 ■ Resin filling (Pad on Via holes) specification ⇒ Instead of requiring an additional 3 days for outsourcing, we can handle it in 1 day! ■ Double-sided flexible boards ⇒ Achieved shorter lead times and reduced initial costs by using laser processing instead of molds for shape processing! ■ 4-layer rigid-flex boards (without reinforcement) ⇒ Typically 7 days, expedited service in 6 days! *For more details, please contact us or download our catalog to view.*

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At K2, we have all the manufacturing equipment necessary for circuit board production fully in-house, and by operating that equipment at 100%, we achieve shorter lead times and lower costs for special circuit boards and medium-lot products that are difficult for prototype manufacturers to handle. 1. They don't respond to ultra-short lead times... 2. The initial costs for flexible boards are too high... 3. I was turned down when consulting about special circuit board manufacturing... 4. They don't respond to short lead times for medium-lot production... 5. There are concerns about the quality of the circuit boards... We will solve these five issues faced by the circuit board manufacturing industry using our unique know-how. 【Case Studies】 ■ Resin filling (Pad on Via hole) specification ⇒ Instead of the usual 3 extra days required for outsourcing, we can handle it in 1 day! ■ Double-sided flexible circuit boards ⇒ Achieved shorter lead times and reduced initial costs by using laser processing instead of molds for shape processing! ■ 4-layer rigid-flex circuit boards (without reinforcement) ⇒ Normally 7 days, expedited response in 6 days! *For more details, please contact us or download our catalog to view.

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At K2 Corporation, we have all the necessary equipment for circuit board manufacturing, and since we have in-house integrated production, we can typically respond to short delivery times for rigid boards, flexible boards, and special boards. Our thorough delivery management using an in-house production management system ensures that there are no omissions in the intermediate processes, and all products are completed on time. Additionally, as a prototype circuit board manufacturer, we have a large manufacturing line capacity, allowing us to finish medium lot products in a short time as well. For more details, please contact us or download the catalog.

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Short delivery times and high quality are a given. We are confident in our low prices for small quantities and a wide variety of products, as well as medium lot sizes for flexible printed circuit boards! At K2 Corporation, we have all the necessary equipment for circuit board manufacturing, enabling us to respond to short delivery times through in-house integrated production. As a so-called prototype circuit board manufacturer, we also have a large production line capacity, allowing us to meet requests for medium lot sizes with quick delivery. Additionally, for flexible printed circuit boards, we have significantly reduced initial costs and achieved short delivery times by processing coverlays and contour machining, which were traditionally done using molds, with lasers and NC machines. Surface finishes such as electroless nickel gold plating and lead-free solder leveling are also produced in-house!

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We offer a variety of materials, including aluminum and copper, in different thicknesses, allowing for the production of metal base substrates with various specifications. LEDs are characterized by their energy efficiency, brightness, and long lifespan; however, one drawback is that their lifespan can be reduced for reasons other than the LED chip itself due to heat generation, which can be problematic. A metal base substrate is designed to dissipate the heat generated by the LED during operation. By using a substrate made of metals with good thermal conductivity, such as aluminum or copper, we can effectively dissipate the heat generated by the LED. For more details, please contact us or download the catalog.

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Single-sided flexible printed circuit boards are available in various material thicknesses. By using thin materials, it is possible to achieve a total thickness of 50μ for the thinnest flexible boards. We can also accommodate fine pattern substrates using thin copper foil materials, as well as halogen-free options. For more details, please contact us or refer to our catalog.

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Like one-sided flexible circuits, we have a variety of materials in stock. The thinnest option allows for flexible substrates with a total thickness of 100μ, and of course, halogen-free options are also available. For more details, please contact us or refer to our catalog.

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We can manufacture from 3 to 8 layers. Typically, with multilayer flex circuits, as the number of layers increases, the thickness also increases, which compromises the bendability that is a characteristic of flexible substrates. However, by using thin materials and thin copper foil, we ensure bendability. For more details, please contact us or refer to our catalog.

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We can manufacture from 2 layers to 8 layers. When it comes to rigid-flex PCBs, it often requires creating molds, making it very expensive even for prototypes, and the production time can be significantly long. At K2 Co., Ltd., we combine our experience as a rigid PCB manufacturer with our experience as a flexible PCB manufacturer to offer rapid prototyping of rigid-flex PCBs at low prices. We can flexibly accommodate complex shapes and special layer configurations, so please feel free to consult with us. For more details, please contact us or refer to our catalog.

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In recent years, printed circuit boards have become more precise, and there has been an increase in specifications that cannot be handled by traditional through-hole manufacturing methods. At K2 Corporation, we have successfully challenged various types of circuit boards based on our past experience and achievements. By introducing cutting-edge equipment such as Direct Imaging (DI), we can accommodate a wide range of special circuit boards. Our staff's extensive knowledge and know-how regarding special circuit boards allow us to provide our customers with accurate technical advice. Additionally, we conduct impedance control measurements in-house, which are often outsourced to external vendors. For more details, please contact us or download our catalog.

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At K2 Corporation, we have achieved coverlay processing and outline processing of flexible substrates using NC machines with our unique know-how. This enables shorter lead times and significant reductions in initial costs for flexible substrate manufacturing. The processing accuracy and surface finish, which were challenges with NC machine processing, are now comparable to that of mold processing. Typically, manufacturing flexible substrates requires molds or Thomson dies (Victoria dies) for coverlay and outline processing, regardless of the quantity. As a result, the lead times are longer and initial costs are significantly higher compared to standard rigid substrates due to the time and expense associated with molds. Our company uses NC machines for coverlay and outline processing without the need for molds, thereby reducing the time and costs required for mold creation. Of course, the processing accuracy and finished shapes are on par with those of mold processing. For more details, please contact us or download our catalog.

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We use FR-4 (glass epoxy substrate), FR-1 (paper phenolic), and CEM-3 (composite) as standard materials. We offer a wide range of thicknesses from 0.5mm to 2.0mm to meet our customers' needs. *Other thicknesses can also be accommodated by using double-sided materials. We can ship in as little as 1 business day. For more details, please contact us or refer to our catalog.

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We standardly use FR-4 (glass epoxy substrate) and CEM-3 (composite), but we also keep special materials such as BT resin in stock. We offer a wide range of thicknesses from 0.06 mm to 3.2 mm. We can ship in as little as 1 business day. For more details, please contact us or refer to our catalog.

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We can accommodate from 4 layers to 24 layers. Additionally, we can handle special substrates such as impedance control and through-hole resin filling. We operate three vacuum press machines, allowing for quick turnaround even in mass production. We can ship in as little as 2 working days. For more details, please contact us or refer to our catalog.

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The precision of printed circuit boards has advanced, and the demand for printed wiring boards using the build-up method has increased. The build-up method is a construction technique that forms build-up layers on top of a core substrate. The connection between the core substrate and the build-up layers is made using laser vias. By using this method, it becomes possible to achieve higher density wiring. Currently, it can accommodate up to 2-layer builds (two layers of build-up layers above and below). Additionally, stack vias and filled vias are also supported. There are also achievements in manufacturing rigid-flex boards and multilayer flex boards using the build-up method. For more details, please contact us or refer to the catalog.

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This is a substrate that connects only the necessary layers without penetrating holes in a multilayer board. As the number of layers in printed circuit boards has increased, the demand for this has grown. It can be manufactured using either blind via holes that connect the outer and inner layers or inner vias that embed through holes in the inner layers. Additionally, it is compatible not only with standard multilayer boards but also with multilayer flexible boards and rigid-flex boards. For more details, please contact us or refer to the catalog.

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Based on our extensive past experience, we control the pattern width and layer thickness to perform impedance control. By using Polar's impedance simulation software 'Si8000', we can pre-calculate the impedance values of the completed circuit boards, enabling accurate impedance control. Additionally, we can simulate the layer configuration, line width, and line spacing during the pattern design phase, allowing us to propose specifications that facilitate easier impedance control. For measuring the impedance of the completed circuit boards, we use the 'MZPC50' measuring instrument from Microcraft Co., Ltd., and we can provide measurement results (using the TDR method). For more details, please contact us or refer to our catalog.

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This is a circuit board designed to secure mounting space for components by embedding resin into through-holes and providing pads on top. With the trend towards narrower pitches for components such as BGA and CSP, the demand has increased. Resin and metal paste are embedded using vacuum printing. For more details, please contact us or refer to the catalog.

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Copper with a standard thickness of 18μ can generate high heat and, in some cases, may even break when a large current flows through it, which is very dangerous. Such substrates can be addressed by increasing the thickness of the copper, and K2 Corporation can manufacture substrates with thicknesses ranging from 35μ to 105μ using standard substrate manufacturing methods. Furthermore, by employing special manufacturing techniques, it is possible to produce substrates with a maximum copper thickness of 400μ. For more details, please contact us or refer to our catalog.

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K2 Corporation has all the necessary equipment for circuit board manufacturing, enabling a quick turnaround through in-house integrated production. As a prototype circuit board manufacturer, we also have a large production line capacity, allowing us to complete medium lot products in a short time. For flexible circuit boards, we achieve significant reductions in lead time and initial costs by processing cover layers and outlines with NC machines instead of traditional molds. Additionally, since we possess all the equipment related to circuit board manufacturing, we can respond flexibly to special circuit boards as well. Specialists in each process provide accurate technical advice based on their extensive knowledge and experience. We are ready to accommodate any inquiries regarding special circuit boards with our flexibility. For more details, please contact us or download our catalog.

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K2 Corporation is equipped with large-capacity facilities as a prototype manufacturer, allowing us to produce not only small lots but also medium lots and even low-volume production with short lead times. Thanks to the 100% operating rate of our large-capacity equipment, we can respond to sudden requests without any issues, even if the quantities are large. Additionally, since our manufacturing methods are the same as those for prototype boards, the initial costs do not become excessively high like they do with mass production factories. When there are requests for medium lot production, general prototype manufacturers may struggle to keep up with factory capacity, leading them to outsource or decline the manufacturing altogether. Even if you request a mass production manufacturer, you may encounter high initial costs or significant delays in delivery. Our company has a large factory capacity, allowing us to seamlessly integrate medium lot production into our manufacturing line, producing it on the same line as prototypes, thus ensuring short lead times are also possible. For more details, please contact us or download our catalog.

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At K2 Corporation, we have all manufacturing lines in-house, and our experienced staff are well-versed in each piece of equipment. By conducting daily inspections and maintenance on each device, we prevent issues before they arise. Additionally, our thorough intermediate inspections, such as pattern checks using AOI (Automated Optical Inspection) and continuity tests with flying checkers, allow us to detect problems early in the process, preventing the outflow of defective products and delays in delivery. We obtained ISO 9001 in August 2005 and are committed to quality improvement based on this standard, enabling us to provide products that our customers can trust. For more details, please contact us or download our catalog.

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