公开(公告)号：US20200010707A1

公开(公告)日：2020-01-09

申请号：US16483282

申请日：2018-02-08

申请人： National Research Council of Canada ,  Groupe Graham International Inc.

发明人： Sylvie LAFRENIÈRE ,  Bhavana DEORE ,  Chantal PAQUET ,  Arnold J. KELL ,  Patrick Roland Lucien MALENFANT

IPC分类号： C09D11/52 ,  C09D11/037 ,  C09D11/033 ,  C09D11/104 ,  H05K3/40 ,  H05K1/09 ,  H05K3/12 ,  H05K1/11 ,  B41M1/12

摘要： A process for finishing a conductive metallic layer (e.g. a layer of copper metal) involves coating a molecular silver ink on the conductive metallic layer and decomposing the silver ink to form a solderable coating of silver metal on the conductive metallic layer. The molecular silver ink includes a silver carboxylate, a carrier and a polymeric binder. The process is additive and enables the cost-effective formation of a silver metal finish on conductive metallic layers, which both protects the conductive metallic layer from oxidation and further corrosion and allows soldering with lead and lead-free solders.

公开(公告)号：US20210301166A1

公开(公告)日：2021-09-30

申请号：US17265572

申请日：2019-08-02

申请人： National Research Council of Canada

发明人： Xiangyang LIU ,  Jianfu DING ,  Patrick Roland Lucien MALENFANT ,  Chantal PAQUET ,  Bhavana DEORE ,  Arnold J. KELL

IPC分类号： C09D11/52 ,  H01B1/22 ,  C09D11/033 ,  C09D11/101

摘要： A printable molecular ink that is can be treated (e.g. dried or curable) and sintered using broad spectrum ultraviolet light is provided to produce electrically conductive traces on a low temperature substrate, for example PET. The ink includes a silver or copper carboxylate, an organic amine compound, and may include a thermal protecting agent.

公开(公告)号：US20200017697A1

公开(公告)日：2020-01-16

申请号：US16483842

申请日：2018-02-08

申请人： National Research Council of Canada

发明人： Xiangyang LIU ,  Chantal PAQUET ,  Arnold J. KELL ,  Patrick Roland Lucien MALENFANT

IPC分类号： C09D11/037 ,  C09D11/03 ,  C09D11/52 ,  C09D11/033 ,  H05K1/09 ,  H05K3/12 ,  H05K1/02 ,  B41F15/02 ,  D02G3/12 ,  D02G3/36 ,  D02G3/44

摘要： A molecular ink contains a silver carboxylate, an organic amine compound, an organic polymer binder, a surface tension modifier, and a solvent. The ink may be used to produce conductive silver traces on a substrate for use in fabricating electronic devices. The ink is particularly useful for producing conductive silver traces on a shapeable (e.g. stretchable) substrate in a low temperature sintering process. Also, a process for producing a conductive silver trace on a shaped substrate involves depositing the molecular ink on a shapeable substrate, drying the ink on the shapeable substrate to form a non-conductive trace containing the silver carboxylate on the shapeable substrate, forming the shapeable substrate into a shape to produce a shaped substrate so that at least a portion of the non-conductive trace is situated on a shaped portion of the shaped substrate, and sintering the shaped substrate to decompose the silver carboxylate to metallic silver thereby producing a conductive silver trace on at least the shaped portion of the shaped substrate. The process reduces potential for cracking of conductive silver traces on shaped substrates.

公开(公告)号：US20210079248A1

公开(公告)日：2021-03-18

申请号：US17102661

申请日：2020-11-24

申请人： National Research Council of Canada ,  Groupe Graham International Inc.

发明人： Arnold J. KELL ,  Sylvie LAFRENIÈRE ,  Chantal PAQUET ,  Patrick MALENFANT ,  Olga MOZENSON

IPC分类号： C09D11/52 ,  C09D11/033 ,  H05K1/09 ,  H01Q1/38 ,  H05K3/10 ,  H01Q1/36 ,  H01Q1/22 ,  C09D11/38 ,  C09D11/08 ,  C09D11/14 ,  H01Q1/24 ,  H05K3/12

摘要： A flake-less molecular ink suitable for printing (e.g. screen printing) conductive traces on a substrate has 30-60 wt % of a C8-C12 silver carboxylate and 0.1-10 wt % of a polymeric binder, or 5-75 wt % of bis(2-ethyl-1-hexylamine) copper (II) formate, bis(octylamine) copper (II) formate or tris(octylamine) copper (II) formate and 0.25-10 wt % of a polymeric binder, and balance of at least one organic solvent, wherein the binder has ethyl cellulose, and the ethyl cellulose has an average weight molecular weight in a range of 60,000-95,000 g/mol and a bimodal molecular weight distribution.

公开(公告)号：US20200010706A1

公开(公告)日：2020-01-09

申请号：US16483262

申请日：2018-02-08

申请人： National Research Council of Canada

发明人： Arnold J. KELL ,  Chantal PAQUET ,  Olga MOZENSON ,  Patrick Roland Lucien MALENFANT ,  Bhavana DEORE

IPC分类号： C09D11/52 ,  C09D11/037 ,  C09D11/033 ,  C09D11/104 ,  H05K3/12 ,  H05K1/09 ,  B41M1/12

摘要： A molecular ink contains a silver carboxylate (e.g. silver neodecanoate), a solvent (e.g. terpineol) and a polymeric binder comprising a polyester, polyimide, polyether imide or any mixture thereof having functional groups that render the polymeric binder compatible with the solvent. Such an ink may have good thermal stability with higher silver carboxylate content.