Bonding in Electronics
12Pages

Design Examples and Product Range Sealing of microswitch pins

Bonding and fixing Bonding of stator to housing DELO-ML DB135 Very high impact resistance Excellent media resistance (for example to oil, gasoline, Diesel) Normal temperature range of use up to +180 °C Tension-equalizing: High-strength bonding of metals with dissimilar coefficients of expansion Immediate initial strength by light fixation; anaerobic curing of adhesive in shadowed areas Bonding of magnets to stator DELO MONOPOX (various structural adhesives) Excellent media resistance Very high temperature stability High static and dynamic loading capacity even at elevated temperatures Ideal...

Fixing of coil wires DELO PHOTOBOND 4497 Dry surface Tension-equalizing with an elongation at tear of 200 % Functionality: Additional mechanical protection, for example during vibration or subsequent molding Fixing of ferrites in coils DELO MONOPOX GE2710 Excellent flow behavior: Adhesive capillates through the windings Outstanding adhesion to lacquered coil wire and ferrite Process reliability: Reliable fixing for further processing during the assembly process Also suitable for potting Fixing of ferrites and coil bodies DELO-DUOPOX FR898 High-strength construction adhesive Excellent media...

Bonding and fixing Bonding of coils DELO MONOPOX SJ2981 Run-resistant Normal temperature range of use up to +200 °C Good strength on laminated copper foil and aramid foil High stability and strength even upon high magnetic forces Vibration protection on PCBs DELO-PUR 9694 Run-resistant High static and dynamic loading capacity Functionality: Optimal vibration damping Multi-purpose Easy processing from side-by-side cartridges Securing of soldered contacts DELO KATIOBOND 45952 High corrosion resistance Perfect solution: Preactivation enables bonding of opaque components Production reliability:...

Bonding of PBT cover and housing DELO MONOPOX GE2710 Good media resistance (for example to oil, gasoline) Excellent vibration resistance Very high resistance to elevated temperatures and thermal cycling test Multi-purpose for various plastics (such as ABS, PA, PBT) Bonding of displays DELO PHOTOBOND LA4880 Curing on demand Preactivated adhesive cures without further irradiation by humidity at room temperature Dry surface Highly flexible, soft Good peel resistance Initial strength after 1 – 2 minutes Final strength after 72 h Bonding of mini speakers DELO PHOTOBOND UB4086 Temperature range...

Bonding and fixing Bonding of LED reflectors and lenses DELO KATIOBOND OB642 Optically clear High yellowing resistance High temperature stability Low outgassing Suitable for reflow processes High reliability: For example for the use in headlights, flash lenses and backlighting applications Die attach DELO MONOPOX DA255 High temperature resistance up to +260 °C Fast curing in seconds with a thermode (for example 6 s @ +180 °C) Low-tension curing Optimized products for many chip sizes Flip-chip bonding DELO MONOPOX AC268 Good humidity resistance High ion purity, high corrosion resistance Fast...

Potting and coating Dam & Fill chip encapsulation DELO KATIOBOND DF698 (Dam), 4670 (Fill) High production capacity: Encapsulation of up to 40,000 modules / h (glob top; Dam & Fill: 20,000) Dam & Fill adhesives form a chemically homogeneous unit Functionality: High ion purity and strengths ensure the chip function over the entire lifetime Quality: Steady dispensing results even when using showerhead dispensers Opaque Dam & Fill chip encapsulation DELO DAM&FILL Production capacity: Short cycle times thanks to very fast curing Absolutely opaque even in thin layers; very high mechanical...

Potting and coating Sealing of electronic housings DELO-GUM CR3010 Neutral crosslinking High flexibility from – 50 °C to +180 °C Tension-equalizing Low water absorption High corrosion resistance Excellent for microelectronic applications Sealing of microswitch pins DELO DUALBOND GE4910 Excellent flow and wetting behavior Reliable curing in shadowed areas Tension-equalizing High flexibility even at low temperatures (down to – 40 °C) Very good adhesion to metal and plastic Production capacity: Short cycle times thanks to very fast curing within seconds Longer lifetime: Resistance to humidity...

Corrosion protection of soldered contacts DELO KATIOBOND KB554 High resistance to thermal cycling test High corrosion resistance Production reliability: Application control by fluorescent adhesive Increased operational reliability and prolonged lifetime: Excellent wetting of the soldered contact Potting of circuit carriers Various DELO-DUOPOX DB adhesives Fast initial strength by light fixation (10 – 60 s) Low-viscous for good flowing around the electronic assemblies Low shrinkage Aging-resistant, permanently flexible Tension-equalizing Multi-purpose in mechanical engineering, electrical...

DELO’s adhesives for the electronics industry at a glance DELO PHOTOBOND Basis Curing DELO KATIOBOND DELO DUALBOND epoxy DELO-ML Methacrylate UV-curing, light-curing, preactivated. Special product v ariants are ual-curing: d light-curing and humidity-curing UV-curing, UV- / light-curing, preactivated Dual-curing: light-curing and heator humidity-curing depending on the product Anaerobic-curing, for example in 2 – 4 min (accelerated curing by DELO-QUICK a ctivator). v Special product ariants are dual-curing: anaerobic-curing and light- or UV-curing Application areas Automotive Mobile phones...

DELO MONOPOX initial strength By air humidity at room temperature, for example initial strength after 30 s ( accelerated curing by DELO-QUICK 2002 activator) Heat curing, depending on the product in the range from +60 to +180 °C At room temperature after mixing resin and hardener, for example initial strength after 5.5 h (products with fixation times from 15 min to h vailable). 8 a Special roduct variants p are light- xable (light fi fi xation in 10 s – 60 s) At room temperature after mixing resin and hardener, for example nitial strength after i 1.5 h (products with fixation times from 30...