Stamping Products General Information: IC Leadframes A leadframe is a thin layer of metal that connects the wiring from tiny electrical terminals on the semiconductor surface to the large-scale circuitry on electrical devices and circuit boards. Leadframes are used in almost all semiconductor packages. Mitsui High-tec accomplished the production of IC leadframes by precision-die-stamping for the first time in the world and, at present, we are producing leadframes not only by stamping but also by chemical etching. We supply a wide range of products such as fine pitch leadframes for ultra-multi-pin QFP, deep bent leadframes for P-VQFN/SON, in-die interlocked leadframes for power packaging and electronic parts backed up by our strong-point, that is, a hybrid of ultra-precision technology base and die-manufacturing technology. History of Mitsui High-tec leadframe development Features of Mitsui High-tec leadframes PLEASE NOTE: All links on this page access information pages on the Mitsui International web site. Features 1 Ultra-fine pitch High-accurate deep bending High-accurate in-die interlocking Features 2 High-accurate etching Flexible production by both etching and stamping Features 3 Global-based production at nine sites in six Asian countries Environment consciousness (lead-free production, etc.) Open leadframes Open-design leadframes that are manufactured by standard dies and jigs are available. Details You can search the kind of products on market. They can be found out from the type of package, size of package and number of pins Search lineup Motor Core Stamping Mitsui High-tec provides high quality and low cost motor core products with complete global service from die design, fabrication and stamping manufacturing. High Quality and Low Cost Proven technology accumulated since our company foundation guarantees high quality and low cost for precision stamping dies and the MAC system which was developed in-house. MAC is a system that fuses motor core layers to complete each core product inside the stamping tool as they are stamped, eliminating the need for a separate process after stamping. Mitsui's motor cores are used in a variety of applications from the high-precision 2.7 mm diameter micro motors of vibrators in portable phones, to the high efficiency and high output 300 mm diameter motor cores required by hybrid automobiles. *MAC System (Mitsui Automatic Core assembly system) Global Network Out global supply network supplies motor core stamping in Japan and in overseas production facilities in Singapore, Malaysia, Thailand, Philippines, Dongguan, Shanghai, Tianjin, Hong Kong, and Taiwan. This guarantees customers a supply of motor cores of the right quantity at the right time in the right place. Stamping Tool Maintenance Tool maintenance service is done at the local Mitsui overseas site and includes quick delivery for re-grinding and spare parts of precision stamping tools. * We also perform the above maintenance for stamping tools originally made by other manufacturers. (details) Latest Technology With continuing focus on conserving resources and energy by reducing size and weight, Mitsui has successfully developed and utilized a highly efficient core of ultra-thin electromagnetic steel only 0.15 mm thick. (details) Left: Product made of 0.15mm thickness sheets Right: Product made of 0.5mm thickness sheets Improving productivity replacing machining labor with stamping tools By automatically stamping, stacking, and laminating shapes cut from sheep metal, complicated solid and composite forms can be made using high volume tooling to replace standard machining. The improvement not only dramatically decreases production time but also improves dimensional precision. Mitsui supplies not only the precision tooling but also Stamping Services.. Complete stamped products are sent to customers ready-to-use. Please do not hesitate to ask, "Is it possible to manufacture this product by stamping?" By changing the manufacturing method from machining to stamping, productivity can be improved by far than that of conventional. Example: Geared motor parts (Working time per piece of work) Machining: 2 to 3 hours Stamping: Approx. 10 seconds