TANAKA PRECIOUS METAL TECHNOLOGIES Co., Ltd. has launched a novel gold bump switch know-how designed to reinforce the sintered gold bonding course of generally known as AuRoFUSE™ Preforms. This new methodology permits the formation of gold bumps on semiconductor chips and substrates with advanced constructions, addressing challenges confronted by conventional gold bump formation strategies.
The know-how includes initially creating gold bumps on a switch substrate, that are then transferred to the goal semiconductor chip or substrate. This course of includes creating openings on a silicon substrate, filling them with gold, and subsequently transferring the gold bumps by means of warmth remedy. This methodology mitigates the danger of dropping through the course of and facilitates straightforward extraction of the gold bumps.
By manufacturing gold bumps individually, TANAKA’s know-how permits exact placement on track areas, even on substrates with advanced shapes which might be tough to course of utilizing standard photolithography. This innovation is especially useful for semiconductor chips and substrates which might be inclined to break from stripping options.
The firm outlines an in depth manufacturing course of that features making ready a silicon substrate, making use of photoresist, and utilizing thermocompression to switch and bond the gold bumps. This course of is anticipated to satisfy the rising demand for miniaturization and enhanced efficiency in semiconductors, together with functions in optical gadgets, digital gadgets, and in-vehicle parts.
AuRoFUSE™ Preforms, developed by TANAKA, make the most of a paste composed of gold particles and an natural solvent. This paste allows bonding at a comparatively low temperature of roughly 200℃, considerably beneath gold’s melting level. The know-how gives benefits over conventional soldering and plating strategies, which pose dangers of short-circuiting and chip harm on account of greater strain necessities.
TANAKA’s innovation is poised to contribute to the development of next-generation high-density mounting and photonics-electronics integration gadgets. The firm’s experience in valuable metallic supplies, notably gold, underpins this improvement, with an emphasis on sustainability and environment friendly use of restricted assets.