山村フォトニクス List of Products and Services

At Yamamura Photonics Co., Ltd., we handle "infrared/ultraviolet products." With the recent expansion of demand for sterilization applications, there is an increasing need for UV-C packages. We are also focusing on the development of quartz LIDs and contributing to the growth of the ultraviolet market, which is expected to expand further in the future. Additionally, we are developing packages that bond CaF2 and quartz using our original resin, which excels in weather resistance, heat resistance, and airtightness. Please contact us for more details. 【Products Offered】 ■ LID/Cap for Infrared Applications ■ LID/Cap for Ultraviolet Applications *For more details, please refer to the PDF document or feel free to contact us.

• others

At Yamamura Photonics Co., Ltd., we have established various technologies through years of product development and mass production. Starting with glass processing technology, we contribute to solving customer challenges based on a wide range of technologies, including bonding technology and optical design technology. We have built a system that allows each department to respond quickly while closely collaborating, and we are committed to providing detailed support. Please feel free to consult us when considering our services. 【Development Products (Excerpt)】 ■ Cap/LID for UV-B ■ Ultra-compact gas-filled cells ■ Hybrid materials ■ Insulating heat dissipation sheets ■ B-stage processing ■ High strength / low dielectric loss LTCC green sheets *For more details, please refer to the PDF materials or feel free to contact us.

• Contract manufacturing

"HS02" is an elastic sheet with excellent thermal conductivity, insulation, and heat resistance. It contains ceramic thermal conductive fillers, which allow for adhesion, resulting in excellent adhesion to substrates and low thermal resistance with good heat dissipation. Additionally, we also offer a flame-retardant grade (V-0) that is heat resistant up to 200°C. Please feel free to contact us when you need assistance. 【Features】 ■ Excellent thermal conductivity, insulation, and heat resistance ■ Contains ceramic thermal conductive fillers and can provide adhesion ■ Low thermal resistance and good heat dissipation ■ Flame-retardant grade (V-0) that is heat resistant up to 200°C is also available *For more details, please refer to the PDF document or feel free to contact us.

• Other consumables

We would like to introduce the "HP36 Series / HP36 Resin" that we handle. The HP36 Series "HP36UP / HP36UPN" is a heat-resistant bonding and sealing material with excellent heat resistance, adhesion, and insulation properties. The "HP36 Resin" can be used as a transparent heat-resistant potting material, maintaining low hardness changes in high-temperature environments, as well as its characteristics of thermal stress relief and adhesion. 【Features】 <Heat-resistant bonding and sealing materials HP36UP HP36UPN> ■ An elastomer with excellent heat resistance due to thermal curing ■ Materials with excellent adhesion and insulation properties ■ Resistance to thermal stress relief and thermal shock *For more details, please refer to the PDF document or feel free to contact us.

• Other consumables

We would like to introduce the products we handle, "HE59/HE60F-4." "HE59" is a high-transparency resin material for optical applications, and due to its relatively low hardness, it exhibits excellent properties for relieving thermal stress and resistance to thermal shock when bonding dissimilar materials. "HE60F-4" is a UV-C (deep ultraviolet) resistant adhesive material for UV-C applications, which is resistant to the short wavelengths of UV-C light and can be applied to high-output ultraviolet LED bonding materials. [Features] <High-transparency resin material for optical applications HE59> ■ High transparency, clear material ■ Usable as an adhesive ■ Excellent thermal stress relief and resistance to thermal shock ■ Can be supplied as a single component if heat treatment at high temperatures is possible *For more details, please refer to the PDF document or feel free to contact us.

• Other consumables

We would like to introduce our processing technology, "GTMS/Glass Processing." With "GTMS technology," we diffuse the oxide film of the sealing alloy into the glass side, creating a layer (oxide film diffusion layer) that connects the metal and glass, achieving high airtightness and high reliability through chemical bonding. Additionally, we offer "glass processing technology," which involves creating each piece by hand, as well as "step seal processing technology" that enables the joining of metals and glass with different coefficients of expansion. 【Features】 <GTMS Technology> - Diffuses the oxide film of the sealing alloy into the glass side to create a layer that connects metal and glass. - Achieves high airtightness and high reliability through chemical bonding. <Glass Processing Technology> - Crafts high-quality glass processing parts by hand, one by one. - Capable of developing and considering soft glass, hard glass, and special glass. *For more details, please refer to the PDF materials or feel free to contact us.

• Glass
• Processing Contract

We would like to introduce our sheet technology, "Green Sheet." In the case of "LTCC Green Sheet," we are developing low dielectric loss types and high strength types to meet the needs for low dielectric loss due to the advancement of wireless communication such as 5G, and the need for increased strength associated with thinner designs. We also provide prototyping for the sheet formation of ceramic and glass powders, as well as for laminated substrates and electrode printing. 【Features】 <LTCC Green Sheet> ■ Developing LTCC with characteristics such as low dielectric loss and high strength ■ Contributing to the advancement of electronic devices <Ceramic Sheet / Glass Sheet> ■ Capable of forming sheets from ceramic powders such as Al2O3 and AlN, as well as glass powders ■ Can form thick glass layers *For more details, please refer to the PDF document or feel free to contact us.

• Prototype Services
• others
• Processing Contract

We would like to introduce our optical package components, "Optical Coating Design and Processing." In addition to selecting window materials according to the wavelength of use, we design and propose optical coatings such as AR, BPF, and ND filters. We can accommodate a wide range of wavelengths from ultraviolet to infrared. Additionally, we also handle "Direct Seal Products" for compact and low-profile designs, as well as "Angled Can Products" for countermeasures against back reflections. 【Features】 <Optical Coating Design and Processing> ■ Proposals for various optical coatings are possible ■ Selection of window materials according to the wavelength of use ■ Compatible with a wide range of wavelengths from ultraviolet to infrared *For more details, please refer to the PDF document or feel free to contact us.

• Other optical parts

A glass tube that has been considered difficult to use as a mechanical part due to the precision of its outer diameter tolerance. At Yamamura Photonics, we have achieved high-precision glass tubes that can be used as mechanical parts by precisely controlling the outer diameter tolerance through our unique processing technology. Our high-precision glass tubes are individually fine-tuned by skilled artisans during processing, and we can also accommodate additional processing of commercially available glass tubes, which is challenging with machining. They are used in applications that require high outer diameter tolerance, such as electrode tubes for ozone generators and glass tubes for office automation equipment. 【Features】 ■ High-precision outer diameter processing ■ Achieves outer diameter tolerance at a level suitable for use as mechanical parts ■ Processing of our own glass tubes and commercially available glass tubes (hard/soft glass) ■ Taper processing is also possible, accommodating glass tubes of various diameters and lengths according to your needs ■ Standard samples: All custom-designed *For more details, please refer to the PDF document or feel free to contact us.

• Glass
• Glassware and containers

"Gas cells" are products that encapsulate inert gases or reactive gases in various glass containers. At Yamamura Photonics, we provide appropriate gas cell products for devices that require high airtightness and high reliability, thanks to our advanced processing technology and precise gas encapsulation pressure management. We can achieve high-precision encapsulation at a pressure of 133 Pa (1 Torr), and by pre-treating to remove impurities and outgassing from the glass container before gas encapsulation, we can maintain stable performance over long periods. 【Features】 - Integrated production from glass container molding to gas encapsulation - Two standard shapes - Custom design - Standard samples: All available through custom design *For more details, please refer to the PDF document or feel free to contact us.

• Glass
• Glassware and containers

The core technology of Yamamura Photonics, "sealing technology for glass and metal." This technology joins glass and metal, which are dissimilar materials, through an oxide film, achieving high airtight performance. We provide products for applications requiring high vacuum, such as vacuum circuit breakers for railways, medical X-ray tubes, endoscope components, and glass electrode tubes for ozonizers. We can accommodate various glass welding and bonding methods, including ring seals, disk seals, and terminal embedding, so please feel free to consult us. 【Features】 ■ High airtightness through oxide film formation ■ Custom production by skilled artisans ■ A wide range of sizes from airtight terminals to large vacuum containers ■ Stable appearance quality ■ Standard samples: All custom-designed *For more details, please refer to the PDF document or feel free to contact us.

• Glass
• Glassware and containers

At Yamamura Photonics, we handle LTCC and alumina solid substrates, as well as multilayer substrates with formed conductor wiring circuits. We can produce various sizes and shapes, and we also accommodate custom designs according to customer requests. In recent years, we have been considered for a wide range of applications, including infrastructure such as antennas, various semiconductor packages, automotive use, medical applications, and semiconductor devices. 【Features】 ■ Providing LTCC solid substrates and alumina solid substrates ■ Prototype development of LTCC multilayer substrates ■ Material development and custom support *For more details, please refer to the PDF document or feel free to contact us.

• Glass

At Yamamura Photonics, we utilize our film formation technology for LTCC substrates to accommodate the sheet formation of various ceramics and glass powders. We can handle a variety of materials, including alumina, zirconia, aluminum nitride, silicon nitride, and glass. We will design sheets according to your requirements, so please feel free to consult us if you wish to convert powders into sheets. 【Features】 ■ Sheet formation of various ceramic powders ■ Sheet formation of glass powders ■ Contract processing for sheet formation *For more details, please refer to the PDF document or feel free to contact us.

• Glass

LTCC is a glass ceramic that can be co-fired with conductors at lower temperatures than ceramics such as alumina. Yamamura Photonics' "Green Sheet for LTCC Substrates" enables low-temperature firing below 900°C and is characterized by high strength, low loss, low dielectric constant, and high dimensional stability during sintering. It is used in a wide range of applications, including high-frequency circuit substrates, automotive substrates, and various LED substrates, and is expected to see increasing applications as an essential material for enhancing the performance, miniaturization, and low profile of electronic components and modules. [Features] - High dimensional stability and printability - A lineup of distinctive standard products - Material development and custom support *For more details, please refer to the PDF document or feel free to contact us.

• Glass

The "diffuser" is a component used to disperse the light from a light source and is incorporated into devices such as laser projectors. The diffusers from Yamamura Photonics are made of glass, providing a higher transmittance compared to resin diffusers, and they are excellent in light resistance and heat resistance. By applying a unique special surface processing technology, fine unevenness is created on the surface of the glass plate, achieving diffusion of transmitted light through random refraction. Since all processing is done in-house, it allows for precise adjustments of the diffusion angle according to the customer's usage conditions, enabling light distribution control and mitigation of brightness unevenness according to application. 【Features】 ■ High transmittance ■ High heat resistance ■ High light resistance ■ Custom design support *For more details, please refer to the PDF document or feel free to contact us.

• Other optical parts

The "Glass LID" is a component that joins various optical windows with a metal frame, used as a cover in packages such as LEDs, lasers, and MEMS. The AuSn type LID was primarily developed for UV-LED packages. We propose a design that uses our original composition of ultraviolet-transmitting glass as the window material and directly joins the metal frame without using low-melting-point sealing glass. 【Features】 ■ Direct sealing method that does not use low-melting-point sealing glass ■ Fewer components allow for miniaturization and low-profile design ■ No concerns about the flow of sealing glass, enabling a wide aperture ■ Customizable ■ Other solder materials besides AuSn can also be considered *For more details, please refer to the PDF document or feel free to contact us.

• Other optical parts

The "Glass LID" is a component that joins various optical windows with a metal frame and is used as a cover in packages such as LEDs, lasers, and MEMS. The seam-welded type of Glass LID is designed with a thin flange thickness for the metal frame, allowing it to be joined to the cavity through seam welding. Basically, we offer custom-designed products, accommodating sizes from a few millimeters to several tens of millimeters. 【Features】 ■ Two types of joining methods (Seal Glass Type / Direct Seal Type) ■ Customizable ■ Proven design for various shapes *For more details, please refer to the PDF document or feel free to contact us.

• Other optical parts

Taiwan Mountain Village Optics also offers bare lenses. We have standard products available for both coupling and collimation, which can be selected according to the required specifications. Custom options are available for small quantities, and for cases requiring more precise optical design, we can design and propose lenses and optical coatings tailored to your needs. Additionally, we are focusing on needs for optical communication applications and are developing rectangular types in addition to the standard circular types. 【Features】 ■ Abundant standard products ■ Quality assurance system for domestic sales in Japan ■ Custom options *For more details, please refer to the PDF document or feel free to contact us.

• Other optical parts

At Yamamura Photonics, we offer aspheric lens caps and holders that are bonded to metal cans using low-melting-point sealing glass. Furthermore, since 2018, Taiwan Yamamura Optical has joined the Yamamura Group, enabling us to provide newly integrated molded aspheric lens products. The aspheric lens caps and holders from Taiwan Yamamura Optical are products that directly bond the lens to the metal can using precision molding methods. We offer both coupling and collimating types, and all varieties are produced in-house at our factory. We support customer development for applications requiring more stringent optical design, such as optical communication, display applications, and detector applications. 【Features】 ■ A wide range of standard products ■ Quality assurance system for domestic sales in Japan ■ Customization available ■ High reliability and high airtightness *For more details, please refer to the PDF document or feel free to contact us.

• Other optical parts

The "Slanted Window Cap" is a component that joins an optical window using low-melting-point sealing glass to a metal can with an inclined surface. By angling the window, it is possible to suppress the effects of laser light reflecting off the window and re-entering the element (return light). There is an increasing demand for return light suppression not only in laser packages such as VCSELs but also in MEMS packages. Yamamura Photonics proposes slanted products in addition to cap products, including glass LIDs. 【Features】 ■ High airtightness and high reliability ■ Contributes to return light suppression ■ Custom design support *For more details, please refer to the PDF document or feel free to contact us.

• Other optical parts

The "Flat Window Cap" is a component that joins a metal can and an optical window using low-melting-point sealing glass. It is a part that employs a sealing method capable of achieving high airtightness, and it is widely used in various fields as a packaging component for optical communication, ultraviolet and infrared sensors, LEDs, and visible light lasers, as well as various semiconductor lasers and light-emitting and receiving elements. At Yamamura Photonics, we not only select materials according to the application and the customer's packaging process but also propose appropriate optical coatings. 【Features】 ■ High reliability and high airtightness ■ Full lineup of standard sizes for TO-CAN ■ Custom design support for size and optical coating ■ Extensive mass production track record *For more details, please refer to the PDF document or feel free to contact us.

• Other optical parts

The "Melted Lens Cap" is a component that directly bonds a glass lens to a metal can through welding. It was developed as a cost-reduction product for ball lens caps, as it does not use precision-ground lenses and does not bond with low-melting-point sealing glass (i.e., it has fewer components). Compared to flat window caps, it has light-gathering capabilities, making it particularly well-suited for use in packages for light-receiving elements. 【Features】 ■ High airtightness and high reliability ■ Contributes to miniaturization ■ Custom design support ■ Abundant mass production track record *For more details, please refer to the PDF materials or feel free to contact us.

• Other optical parts

The "Ball Lens Cap" is a component that joins a ball lens, which has been polished with high precision, to a metal can using low-melting-point sealing glass. It is mainly used for light collection and coupling applications, and due to its cost-effectiveness, it has been adopted by many customers both domestically and internationally, particularly in the access systems of optical communications. Yamamura Photonics offers standard-sized caps for TO-CANs, as well as accommodating some design modifications such as height and lens changes, completely new designs for special shapes, and custom designs for optical coatings. 【Features】 ■ High airtightness and high reliability ■ Lineup of standard sizes for TO-CANs ■ Custom design support for size and optical coatings ■ Extensive mass production track record *For more details, please refer to the PDF document or feel free to contact us.

• Other optical parts