Method for forming image on object surface including circuit substrate

A method for manufacturing multilayer circuit substrate comprises the steps of:

• mixing a photoresist and a circuit material to form a photosensitive paste,
• applying said photosensitive paste to a surface of a substrate to form a photosensitive paste layer,
• converging a laser beam emitted from a laser light source to focus a cross section of said laser beam to a dot size of dot pattern composing a circuit pattern, injecting said laser beam into a waveform shaping unit to covert said laser beam to an on-off beam corresponding to said dot pattern by computer signals, reflecting said on-off beam by a surface of a rotating polygon mirror, scanning continuously and repetitiously said on-off beam on a plotted area consisting of exposed and unexposed areas,
• developing said photosensitive paste layer to form an unsintered circuit pattern by removing said exposed area or said unexposed area,
• piling up a plurality of substrates formed said unsintered circuit pattern to form an unsintered multilayer circuit substrate, and
• sintering said unsintered multilayer circuit patterns through sintering said unsintered multilayer circuit substrate to form a circuit pattern composed of said circuit material.

A method for forming an image on an object surface comprising the steps of:

• mixing a photoresist and a colorant to form a photosensitive paste,
• applying said photosensitive paste to a surface of an object to form a photosensitive paste layer,
• converging a laser beam emitted from a laser light source to focus a cross section of said laser beam to a dot size of dot pattern composing an image pattern, injecting said laser beam into a waveform shaping unit to convert said laser beam to an on-off beam corresponding to said dot pattern by computer signals, reflecting said on-off beam by a surface of a rotating polygon mirror, scanning continuously and repetitiously said on-off beam on a plotted area consisting of exposed and unexposed areas, and
• developing said photosensitive paste layer to form an unsintered image pattern by removing said exposed area or said unexposed area.