Materials used in semiconductors and electronics parts that function in cell phones, computers, IC card, flat-screen TV, and automobiles. Types of these materials are varied including silicon, sapphire, and gallium arsenide (GaAs). They are mainly disk shaped such as silicon wafers and sapphire wafers.

DISCO was originally a blade/grinding wheel manufacturer under the name of Dai Ichi Seitosho Co., Ltd. In 1969, when the company, which had developed its business only domestically, started to export to the US, DISCO was used for the first time for easy pronunciation taking the initials of the corporate name. This name also contained our intention to easily assume what we handled since "disk" in English and "disco" in Spanish both express the shape of the blade or grinding wheel. At the beginning, DISCO was used only as the name of the US subsidiary, but the name of the headquarters was officially changed to DISCO Corporation in 1977.

Cutting into small pieces (dicing)
DISCO machines can control the size up to the level of a µm (micron or micrometer: one thousandth of millimeter), so that workpieces are cut into small die - sometimes the size of one side is less than 1 mm - while assuring their quality and suppressing cracking or chipping.

Precision cutting so that a cross-section of a strand of hair can be divided into 35 sections

Thinning (grinding)
DISCO machines can make workpieces thinner to the 5 µm level. They also enable controlling thickness variation of a wafer whose diameter is 30 cm to within 1.5 µm. Incidentally, the thickness of the paper commonly used in copiers is about 100 µm.

So thin that you can see your hand at the backside

Making a mirror-like glossy finish (polishing)
DISCO machines polish workpieces to the level where your face is reflected. This greatly improves materials resistance to breaking.

Shiny like a mirror

In order to make digital products, such as PC and cell phones, smaller and thinner, it is necessary to reduce the size of parts that function inside. The smaller and thinner the size, the more parts installable in the same space and therefore the higher the functions. DISCO contributes to such evolution of digital products and creates comfort in your life.