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JULY 2026 I I-CONNECT007 MAGAZINE 103 tive release of semiconductor and/or other discrete devices (i.e., not just microLEDS) through photo- chemical activation and total gasification of the bonding material. Devices or groups of devices can be released from a donor substrate and transferred with high precision while minimizing mechanical handling and obviating cleaning. In Table 1, the significance of the Terefilm approach to microLED assembly lies in its ability to replace serial assembly operations with highly parallel transfer processes as illustrated in the above chart. Note again that the technology is not limited to microLEDs alone but can be adapted to handling and assembling bleeding edge and prospec- tive next generation discrete devices such as the 008004 (0.25mm × 0.125mm) and the experimental <0.2mm × 0.1mm. For microLED manufacturing, the Terefilm approach thus offers several potential significant advantages: • Simultaneous transfer of thousands or millions of devices • Reduced mechanical stress on fragile emitters • Improved placement throughput • Lower contamination risk • Enhanced yield potential • Reduced manufacturing cost While microLED displays represent one of the most visible applications for Terecircuits' tech- nology, the same challenges increasingly appear today in advanced semiconductor packaging, chiplet integration, heterogeneous assembly, silicon photonics, RF modules, and embedded elec- tronics. In each case, manufacturers are confronted with the task of accurately positioning often vast numbers of extremely small and delicate devices at economically viable production rates—a challenge that will not get easier with current methods. As electronic systems continue to shrink while component counts increase, the industry's future may depend less on how quickly machines can pick up components and more on how effectively materials and processes can move them in parallel. F L E X I B L E T H I N K I N G Technologies such as Terefilm may therefore repre- sent not merely an improvement in assembly effi- ciency, but a fundamental shift in how next-genera- tion electronic systems are manufactured. A Closing Thought Terefilm combines temporary bonding and debond- ing functionality with lithographic pattern ability. Through photochemical activation, individual devic- es or groups of devices can be selectively released from a donor substrate and transferred with high precision. Upon activation, the material decompos- es cleanly into gaseous products without leaving residue, minimizing contamination and eliminating many cleaning requirements associated with con- ventional release methods. It seems to me, and to a growing number of others, that the technology has a definite "place at the electronics assembly table." Check it out. References 1. My former company, Tessera (thrice renamed and now called Aedia), applied for a patent for one of my disclosures, "Semiconductor Package Hav- ing Light Sensitive Chips in 1997. It concerned semiconductor packaging structures incorporat- ing light-emitting semiconductor devices within a package architecture, and according to AI, the patent is cited in later optoelectronic and semi- conductor packaging patents and appears repeat- edly in patent citation records. Joe Fjelstad Joe Fjelstad is founder and CEO of Verdant Electronics and an interna- tional authority and innova- tor in the field of electronic interconnection and packag- ing technologies with more than 185 patents issued or pending. To read past columns or contact Fjelstad, click here. Download your free copy of Fjelstad's book Flexible Circuit Technology, 4th Edition, and watch his in-depth workshop series "Flexible Circuit Technology."