3D Electronics is the mainstream of the next-generation optoelectronic pr
oducts. At the same time, low-carbon manufacturing is a global trend. Her
e we present an innovative green manufacturing technology that deposit
and pattern high-density complex circuits and functional materials on 3D
freeform substrates based on a laser assisted reduction and patterning pr
ocess in multi-phase reactive fluids. Laser Direct Synthesis and Patterning
(LDSP) uses laser scanning to accurately and selectively reduce and deposi

t metal fine lines in ionic aqueous solutions. Laser Atmospheric Pressure P
lasma Jet (LAPPJ) integrates laser with atmospheric plasma to deposit Tra
nsparent Conductive Oxide fine patterns on optical substrates. By switchin
g the reaction precursor solution, a variety of functional materials can be
quickly synthesized, patterned and thermally treated on the designated su
bstrate in a Single-Step process. This process can be performed at atmosp
heric environment, which further reduces the energy, resources and cost f
or the manufacturer. Owing to the high selectivity of laser process, this tec
hnology is especially suitable for making flexible wearable devices, such a
s flexible batteries, flexible displays, wearable sensors and electronic pape
r. In addition, with a designed laser module, the hybrid process of laser abl
ation, cutting, drilling, and laser deposition, patterning, via filling etc. can
be realized on the same manufacturing system, thus further reduce costs,
shorten process time, and increase the precision as well as the stability of t
he process. Combined with automatic optical inspection, this process can
also be applied for circuit repair. Different from the general circuit repair p
rocess that combines jet printing and laser heat treatment using nanopart
icle ink, this process technology uses a particle-free aqueous ionic precurs
ors as a material source. Thus, the overall process efficiency, cost and carb
on emissions can be greatly improv