This invention relates to the field of
flexible electronics technology, and more particularly to a sacrificial layer
coating solution, its preparation method, sacrificial layer film, and its applications. The raw materials for preparing the sacrificial layer
coating solution, by weight percentage, include: 5-14% functional substrate, with the remainder being
solvent; the functional substrate exhibits a volatile content ≥95% after being placed at 250°C for 3 minutes. This invention selects ethyl α-
cyanoacrylate as the functional substrate and constructs a sacrificial layer
coating solution system with excellent coating and curing properties using a mixed
solvent of
acetone and
acetonitrile. This sacrificial layer material possesses the characteristic of rapid and complete
vaporization under low
laser energy triggering, enabling high-precision pattern transfer with straight edges and minimal burrs, and leaving no significant residue after transfer. This effectively improves transfer accuracy, transfer
process efficiency, and the cleanliness of the donor substrate, meeting the requirements for high-precision transfer applications.