DELO: New Semicon Adhesive Propels Autonomous Driving Forward
October 20, 2023 | DELOEstimated reading time: 1 minute
DELO has developed a flexible electronics adhesive that permanently seals sensor housings airtight and thus reliably protects components such as image sensors. DELO DUALBOND BS3770 meets the stringent requirements of the semiconductor and automotive industries and helps drive innovation in autonomous driving.
The autonomous driving trend comes with ever-stricter safety requirements. Therefore, reliable components such as image sensors are installed in LiDAR and RADAR systems. Sensor housings on PCBs must be hermetically sealed throughout their entire service life in order to maintain their function permanently without interruption. However, previous solutions for hermetically sealing the housing and filter glass are reaching their limits due to these stricter requirements, failing to withstand the tests of the automotive industry, according to standard AEC-Q100.
DELO has developed DELO DUALBOND BS3770, a special electronics adhesive for semiconductor manufacturers to meet the demanding reliability and qualification tests of automotive suppliers.
Unlike adhesives previously available on the market, the newly developed adhesive is a flexible product with a Young's modulus of less than 5 MPa at room temperature. Due to its flexible properties starting from a temperature as low as approximately -50 °C, the adhesive can compensate for pressure changes that occur, such as those caused by temperature changes, humidity differences, or heat input in the reflow process during production. As a result, defects such as pop-ups or delamination do not occur, and the sensor is permanently protected.
DELO DUALBOND BS3770 can be precisely applied by needle dispensing while maintaining narrow and high bondlines. Curing takes place in two consecutive steps using UV light and heat. After dispensing, the adhesive is fixed in a few seconds by means of classic light fixation. Alternatively, it can be transferred to the B-stage, which is particularly relevant for bonding filter glasses with blackprint. At this stage, it achieves an initial adhesion comparable to tape. Afterwards, the second component can be joined. Thanks to the adhesive’s initial adhesion, the component is directly fixed so that it can be entirely processed further. Final curing takes place in a convection oven at +150 °C within 40 minutes.
In addition to image sensors for LiDAR and RADAR applications, DELO DUALBOND BS3770 is also used in driver monitoring and for 5G applications.
Suggested Items
Real Time with... IPC APEX EXPO 2024: Sustainability in the Industry
04/26/2024 | Real Time with...IPC APEX EXPOGuest Editor Henry Crandall and Chris Nash of Indium Corporation discuss the company's 90th anniversary and its focus on sustainability. They focus on the benefits of sustainable materials, their compatibility, and value propositions. The conversation also highlights how Durafuse LT technology's role in reducing reflow temperatures is leading to significant cost and energy savings. Nash also touches on downstream sustainability efforts such as using recycled materials for packaging.
Warm Windows and Streamlined Skin Patches – IDTechEx Explores Flexible and Printed Electronics
04/26/2024 | IDTechExFlexible and printed electronics can be integrated into cars and homes to create modern aesthetics that are beneficial and easy to use. From luminous car controls to food labels that communicate the quality of food, the uses of this technology are endless and can upgrade many areas of everyday life.
The Right Approach: I Hear the Train A Comin'
04/25/2024 | Steve Williams -- Column: The Right ApproachTraining is often an afterthought in many organizations, and the longer a company has been in business, the more this seems to apply. Over the past couple of decades, it has been amazing to observe that the biggest offenders of this are the companies that overuse the sound bite, “Our most important assets are our people.” When you dig into the process and peel back the onion, their commitment to training is not commensurate with that statement.
SMTA Long Island Chapter Celebrates 30th Anniversary with Membership Appreciation Event
04/25/2024 | SMTAThe Surface Mount Technology Association (SMTA) Long Island Chapter is thrilled to announce its 30th Anniversary and Membership Appreciation Event on Wednesday, May 15th, 2024, from 5:30 to 8:30 p.m. EST. The event will take place at Top Golf Long Island-Holtsville, promising an evening of camaraderie, celebration and fun-filled activities.
Real Time with… IPC APEX EXPO 2024: Plasmatreat: Innovative Surface Preparation Solutions
04/25/2024 | Real Time with...IPC APEX EXPOIn this interview, Editor Nolan Johnson speaks with Hardev Grewal, CEO and president of Plasmatreat, a developer of atmospheric plasma solutions. Plasmatreat uses clean compressed air and electricity to create plasma, offering environmentally friendly methods for surface preparation. Their technology measures plasma density for process optimization and can remove organic micro-contamination. Nolan and Hardev also discuss REDOX-Tool, a new technology for removing metal oxides.