Marktech Expands COTS and Custom Photodetector and LED Capabilities with New Transfer Molded Packaging Technology – Ideal for Defense and Aerospace Applications

Example of our transfer molded package structures

LATHAM, NY – May 27, 2026 – Marktech’s new transfer-molded packaging platform expands both complete-off-the-shelf (COTS) and custom optoelectronic options for demanding defense and aerospace sensing, targeting, and optical alignment systems. Transfer molding enables compact SMT packages with integrated optical control, improved mechanical robustness, tighter alignment tolerances, and reduced stray light—important benefits for precision emitters and detectors used in rugged environments. Marktech already lists transfer-molded point-source emitters such as VS679SMTR2, VS679SMTR1, and LS852SMTR1 as COTS examples in its point-source emitter family.

Marktech’s new transfer-molded packaging technology provides important advantages for military and aerospace optical systems where shock resistance, alignment stability, and long-term reliability are critical. Unlike conventional open wire-bond structures, the transfer-molded resin mechanically encapsulates and locks the wire bonds in place, significantly improving resistance to vibration, mechanical shock, thermal cycling, and harsh environmental exposure encountered in aircraft, missiles, drones, armored vehicles, and space-constrained defense electronics. The molded structure also improves stray-light suppression, environmental sealing, and long-term reliability under humidity and temperature stress.

Transfer molding also enables precision molded-in optical features directly within the package, including integrated lenses, apertures, reflectors, filters, and beam-shaping optics. These integral optics maintain highly repeatable alignment between the semiconductor die and the optical axis—an essential requirement in precision aerospace and defense systems such as optical encoders, fiber-optic gyroscopes (FOGs), beam alignment modules, target-tracking systems, and high-accuracy position sensors. Compared to manually assembled optics, transfer molding delivers superior part-to-part uniformity, tighter beam profiles, and more stable optical alignment while reducing package size, weight, and assembly complexity.

Additional details of our new transfer-molded packaging technology can be found here:
https://marktechopto.com/new-transfer-molded-led-and-photodiode-packages-enhance-optical-performance-and-reliability-available-in-2026-from-marktech-optoelectronics/

Custom Point Source LEDs for Optical Sensors
Point-source LEDs are critical because their highly focused, micron-scale beams enable the precise sub-arcsecond measurement resolution required for aerospace gimbals, fiber-optic gyroscopes (FOGs), robotic joints, optical encoders, and missile guidance. They provide a reliable, shock-resistant, power-efficient, flicker-free alternative to laser diodes while eliminating the dark spots and stray side radiation common in standard LEDs. In addition, LEDs perform better in the colder conditions found in outer space and remote winter climates or mountainous areas.

In addition to our industry-leading point-source LEDs, Marktech provides several additional LEDs and photodetectors for defense and aerospace applications, in both COTS and custom versions tailored to OEM specifications.