TANAKA's Precious Metal Micromachining Technology - Bonding Wire

TANAKA ELECTRONICS has been manufacturing bonding wires for over 50 years since its establishment and boasts the world's largest supply of bonding wires. With production sites in five countries, we can provide products globally. TANAKA ELECTRONICS leverages the technology developed in the semiconductor industry to supply highly reliable products necessary for various fields.

(＊)Source: SEMI Global Semiconductor Packaging Materials Outlook - 2024 Edition

Precious metal wire 1/10 the thickness of a human hair ～What is bonding wire?～

Bonding wire is a type of metal wire used to electrically connect semiconductor chips to the electrodes of printed circuit boards. The main type used for this purpose is bonding wire made from gold and other materials that have been made into fine wires with a thickness measured in microns. Its thickness is about one-tenth that of a human hair. This bonding wire functions like the "nerves" that connect the brain and body in humans, and is installed in products that are essential to our daily lives.

<1µm is 1/1000th of a millimeter>

Successfully developed Japan's first gold bonding wire

TANAKA ELECTRONICS CO., LTD. (hereinafter TD) was established on June 8, 1961, as a joint venture between TANAKA PRECIOUS METAL TECHNOLOGIES CO., LTD. and Mitsui Mining & Smelting Co., Ltd. At that time, TD began developing gold bonding wires for silicon transistors, which were the next-generation semiconductors of the time.
The decision to commercialize bonding wires was a significant one that would determine the fate of TD, which was still in its early days. The technical team involved in the development was a small elite group with a strong determination to

Silicon Transistor

Gold Bonding Wire

World-class quality with top-level production performance in the industry

World's Largest Supplier of Bonding Wire

TANAKA ELECTRONICS has been producing bonding wires for over 50 years since its founding, and its supply volume is the largest in the world. We will continue to meet our customers' needs based on the trust and track record built up through our overwhelming production volume.

TANAKA's Brand Expanding Worldwide through Precious Metal Wires

Since establishing its first overseas production site in Singapore in 1978, TANAKA ELECTRONICS has expanded its production sites in Malaysia, China, and Taiwan, supplying them to all countries around the world that manufacture semiconductors.

Acquired ISO 9001 and IATF 16949 certification, which are proof of high quality that meet world standards.

The TANAKA ELECTRONICS Group acquired ISO 9001, the world standard for quality management systems, in 1999 and ISO/TS 16949 (later IATF 16949), a higher-level certification for the automotive industry, in 2004. The Group provides customers with high-quality solutions of world standards.