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.
To ensure your safety behind the wheel, autonomous driving technologies come with especially strict requirements. Therefore, reliable components such as image sensors are used 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, existing 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.
With DELO DUALBOND BS3770, there is now a special electronics adhesive that semiconductor manufacturers can use to meet automotive suppliers’ demanding reliability and qualification tests.
Unlike other adhesives available on the market, this adhesive has properties that enable a particular level of flexibility and durability.
These include:
DELO DUALBOND BS3770 bonds the sensor housing and filter glass in an airtight manner, ensuring the uninterrupted function of image sensor packages. (Figure: DELO)
All this prevents defects such as pop-ups or delamination, so your 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. 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.
Do you already have a specific application, or would you like to learn more about DELO DUALBOND? Our project consulting will help you. In addition, you will find helpful tips and information from our adhesives experts in various TECH TALKS.
DELO is a leading provider of high-tech adhesives, offering solutions for automotive, electronics, and semiconductor industries for over 25 years. Our innovative technologies set industry standards. Companies like Bosch, Huawei, and Siemens trust DELO for superior adhesive technologies.