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Method and apparatus for deposition

A composite, near-infrared technology for sustainable manufacturing/processing, final product manufacturing, conductive patterning, etc.

Inactive Publication Date: 2013-04-24
DZP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] None of the foregoing prior art with intended use in the printing industry describes methods or processes capable of producing printed objects having specific electronic, electrical, optical, magnetic, or other similar physical properties that make such objects suitable For use in electrical or electronic equipment, especially in multilayer electrical and electronic equipment

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  • Method and apparatus for deposition

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Embodiment Construction

[0079] In the present invention, the laser source consists of a pulsed near-infrared (NIR-range 800 to 2000 nm) laser or an array of lasers. Power density can be optimized based on beam optics, gap distance, and desired resolution of the printed object. The power density can also be chosen such that the electromagnetic energy is absorbed by the water diluent, but not sufficient to vaporize, decompose or burn the other ingredients of the composition. Power density can be greater than 10 4 W / cm 2 . Energy per pulse preferably up to 5J / cm 2 , for example at 10 microjoule / cm 2 to 5J / cm 2 In the range. Recently developed laser diodes enable shorter pulses in the microsecond and femtosecond range, and this makes transfer systems faster and more efficient. The exact choice of beam delivery system can be optimized based on the desired working distance, focal spot size and absorption properties of the material to be transferred.

[0080] The device preferably comprises a NIR tr...

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Abstract

The invention relates to a method of depositing a composition on a receiving substrate to form a printed object, the method comprising providing: a receiving substrate a source of near-infra-red laser radiation which is a pulsed laser source or an array of pulsed lasers a support transparent to near-infra-red laser radiation, the support being positioned between the receiving substrate and the laser source a composition which is in contact with the transparent support and which is positioned between the transparent support and the receiving substrate, wherein the composition comprises (a) a functional material in particulate form capable of absorbing near-infra-red laser radiation, (b) an oligomer and / or polymer, (c) water, and (d) optionally additives, the method comprising directing near-infra-red laser radiation through the transparent support and into the composition and thereby causing the composition to be transferred from the transparent support across a gap to the receiving substrate and causing oligomer and / or polymer to solidify on the receiving substrate, thus forming a printed object on the receiving substrate, wherein the printed object is electrically conductive. The present invention further provides apparatus, devices and compositions for use with the method described.

Description

field of invention [0001] The present invention relates to a deposition method for producing printed objects on flexible or rigid substrates using additive laser assisted non-contact material transfer. The present invention is suitable for printing deposition of high precision patterns for useful functions such as high electronic conductivity metal patterns. Background technique [0002] The emerging field of printed and plastic electronics requires the development of new processes and materials that enable the fabrication of functional imprints on flexible substrates such as polymers, paper, textiles, and metal foils. Generally, the desired function is high electronic conductivity, although other functions may also be desired. Examples include controlled levels of electronic conductivity, dielectric and optoelectronic properties, ionic conductivity, light absorption properties. These functions are useful in the fabrication of various components such as metal contacts, con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/28C23C16/448C23C14/06
CPCH01L31/18C23C14/28H05K3/10C23C14/06H01L31/022425H01L51/0013H01L31/0392Y02E10/549C23C14/048H01L31/03926Y02P70/50H10K71/18
Inventor 丹·汤切夫斯托伊娃·扎拉卡
Owner DZP TECH
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