Introduction to Heat Sink Formation Technology Using Ultrasonic Welding
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Directly forming heat dissipation fins (pin fins/ribbon fins) on the back of the substrate achieves a high thermal conductivity (approximately 34 times that of TIM and about 7 times that of solder).
The Adwells ultrasonic pin bonding device PB2000MS and ribbon bonder RB0300SS can directly form heat dissipation pins and substrate mounting pins on ceramic substrates and organic substrates. With ultrasonic bonding, it is possible to form heat sinks without using TIM or solder, achieving a thermal conductivity approximately 34 times that of TIM and about 7 times that of solder. (Figure 1) The formation of heat sinks through ultrasonic bonding comes in two types: pin bonding and ribbon bonding. In pin bonding, simultaneous bonding of up to 4 pins can be achieved at once, allowing for programmable heat sink formation. (Photo 1) In ribbon bonding, Cu ribbons or Al ribbons are continuously bonded to form heat sinks. The device is equipped with a multi-feeder, allowing for automatic switching of ribbon materials and thicknesses. (Photo 2) ~ For more details, please download the PDF document and check it out ~ *) We also accept evaluation tests using demo machines, so if you are interested, please contact us using the form below.
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Detailed information
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The formation of heat sinks through ultrasonic bonding comes in two types: pin bonding and ribbon bonding. In pin bonding, simultaneous bonding of up to 4 pins can be achieved at once, allowing for programmable formation of heat sinks. (Photo 1)
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In ribbon bonding, Cu ribbons and Al ribbons are continuously joined to form a heat sink. The device is equipped with a multi-feeder, allowing for automatic switching of the ribbon material and thickness. (Photo 2)
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Notice of Participation in "JPCA Show 2025" from June 4 (Wednesday) to June 6 (Friday), 2025.
Adwells Co., Ltd. will be exhibiting at the "JPCA Show 2025 (Total Solution Exhibition for Electronic Devices)" held at Tokyo Big Sight. At the exhibition, we will introduce ultrasonic application technologies such as heat sink formation, power module bonding, DMB bonding, flexible substrate bonding, and ultrasonic cutting. Additionally, we plan to display a variety of samples processed with our equipment from various fields, which we believe will be helpful in realizing new ideas and solving challenges. We invite you to visit our booth when you attend the event.
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"May 14 (Wednesday) to May 16 (Friday), 2025" Announcement of participation in the "9th Adhesive and Joining EXPO (Osaka)" (Hall 4, Booth No. 18-78)
Adwells Co., Ltd. will be exhibiting at the "9th Adhesive and Joining EXPO (Osaka)" held at Intex Osaka (Hall 4, Booth No. 18-78). Our company is a manufacturer of ultrasonic application devices with unique ultrasonic technology. We will propose devices that apply ultrasonic technology for joining, cutting, and welding, and we plan to introduce joining/welding technology and cutting technology as ultrasonic application technologies at the exhibition. Additionally, we will showcase a variety of samples processed with our devices from various fields, which we believe will be helpful in realizing new ideas and solving challenges. Exhibits: - Heat sink formation using pins/ribbons/block fins - Power module joining (terminal joining, terminal joining without patterns or with minimal patterns, inter-board joining) - DMB joining (harness joining on organic substrates, discrete devices, large area joining) - Flexible substrate joining (short-time joining, room temperature joining, low connection joining) - Ultrasonic cutting (cutting of soft multilayer materials, cutting of green sheets, slicing of TIM, cutting of active material coated electrodes) We sincerely look forward to your visit.
