DOUJINSANGYO Co.,Ltd. List of Products and Services

Material: Neodymium magnet Performance grade: Available! Shape: Can accommodate various shapes.

• magnet
• Other metal materials

Quality: Particle management available (0.2um, 30 or fewer) Manufacturing: Made in Japan Delivery time: 1-2 weeks

• Non-ferrous metals

Product Name: Single Crystal Lithium Niobate (LN / LiNbO3) Size: Φ2”, Φ3”, Φ4”, Φ6” Orientation: Specifiable Thickness: 250um, 350um, 500um, Specifiable Finish: Single-sided mirror, Double-sided mirror, Others Quantity: 10 pieces or more, Mass production available Manufacturing: Made in Japan, Made in China

• Wafer
• Fine Ceramics
• filter

We offer high-purity GaAs poly (polycrystalline). Additionally, we also provide single crystal GaAs ingots and wafers with diameters ranging from Φ2” to Φ4”.

• Other polymer materials
• Wafer

Silicon wafers for the doujin industry are produced in domestic factories in Japan and are also manufactured through contract production with Chinese manufacturers. We specialize in all sizes from Φ2", Φ4", Φ6", Φ8", to Φ12". We can also accommodate thermal oxide films, CVD oxide films, SOI, and Silicon on Silicon epitaxy. We are capable of special shape processing such as BG processing (back grinding), dicing, punching, and electrical discharge machining. *We also excel in large-diameter silicon ingots and parts processing (MC processing) up to Φ600mm.

• Other semiconductors

Our sapphire ingots are produced in our own factory in China, and we also source them from partner factories, primarily using the Kilopros method.

• others
• Chip type LED
• diode

Our GaN templates (GaN thin films, GaN thick films) have a proven track record of numerous sales. We maintain high competitiveness in terms of quality, such as dislocation density and XRD values, as well as price performance. We can accommodate everything from research and development orders of one piece to mass production orders of several thousand pieces.

• Other semiconductors

In the doujin industry, we mainly provide sapphire materials using the Kyropoulos method. Our sapphire substrates are produced in domestic factories as well as through contract manufacturing with reputable overseas manufacturers.

• others
• Chip type LED
• diode

In the semiconductor industry, we offer small-diameter silicon ingots such as 2”, 4”, and 6”, as well as large-diameter silicon ingots like Φ8”, Φ12”, Φ400mm, Φ500mm, and Φ600mm at the industry's lowest prices. Fine adjustments to the diameter sizes are also possible, for example, Φ310mm, Φ380mm, Φ420mm, Φ460mm, Φ530mm, and Φ580mm. We can accommodate order quantities from one piece to mass production.

• Other semiconductors

We offer customized products with high-quality Chinese-made SiC substrates that balance high quality and price competitiveness, along with domestic processing.

• Wafer
• Other semiconductors

■ Product Name: Optical Glass ■ Type: Synthetic Quartz / Fused Quartz, Tempax / Pyrex, White Board Glass / Blue Board Glass, BK7, Conductive Glass (FTO), etc. ■ Cutting, Grinding, Polishing, Fire Processing, Drilling, etc. ■ Manufacturing Processing: Japan, China

• Glass

● Small lot support ● High quality ● Low price ● Short delivery time

• Glass
• LCD display
• Touch Panel

■ Product Name: Wafer Case ■ Size: For 2 inches, 2.5 inches, 3 inches, 4 inches, 5 inches, 6 inches, 8 inches, 12 inches ■ Types: 25 pieces, 1 piece (single case), cleaning case, others ■ Order Lot: From 50 pieces (in-stock items can be ordered from 10 pieces)

• Wafer
• plastic
• Plastic utensils and containers