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May 8, 2026Nano-Micro Letters0 citationsOpen Access

Scalable and Sustainable Dry Microfabrication Enabled by High-Precision and Wafer-Scale Transfer Lithography of Commercial Photoresists

QGQinhua GuoZXZhiqing XuLYLizhou Yang

Key Points

  • This research aims to address the limitations of traditional photolithography by developing a new transfer method for photoresists on non-traditional substrates.
  • Developed a phase-changing polymer with switchable adhesion for universal transfer of photoresists.
  • Achieved wafer-scale transfer with low global registration error (< 60 µm).
  • Integrated dry etching to pattern delicate materials on various substrates, including paper.
  • Achieved reliable high-resolution patterning on challenging surfaces like curved and fragile substrates.
  • Successfully demonstrated a micro-sized UV photodetector array on a curved glass bottle.
  • Enhanced sustainability through a dry lift-off process and reusable materials.

Abstract

Abstract Conventional photolithography is inherently limited to flat, rigid, and stable substrates, which severely restricts its applicability to flexible, curved, and transient electronic devices. This work presents an innovative transfer method that exploits a phase-changing polymer with dynamically switchable adhesion to enable universal transfer of commercial photoresists onto a broad range of previously incompatible substrates, thereby overcoming the fundamental limitations of traditional photolithography. Remarkably, this method achieves reliable wafer-scale (~ 4-inch) transfer with a global registration error below 60 µm, unlocking high-fidelity patterning on challenging surfaces such as solvent-sensitive, curved, microtextured, or fragile substrates. Combined with dry etching, this study demonstrates a new route for high-resolution patterning of delicate functional materials, including quantum dots and organic semiconductors. Moreover, it supports a sustainable “dry lift-off” process for patterning functional layers, demonstrating a successful high-resolution microfabrication on paper-based substrate. The reusability of both the transfer carrier and photoresist markedly enhances process sustainability and scalability, representing a significant advance in microfabrication. This unprecedented capability is further demonstrated by fabricating a micro-sized UV photodetector array featuring wide-angle sensing capability on a curved glass bottle.

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Cite This Study

Guo et al. (2026) studied this question.

synapsesocial.com/papers/69fd7eb0bfa21ec5bbf06f08https://doi.org/10.1007/s40820-026-02215-7
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