公开(公告)号：US20240306290A1

公开(公告)日：2024-09-12

申请号：US18663314

申请日：2024-05-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Raymond P. Johnston ,  Kevin W. Gotrik ,  John J. Sullivan ,  Kenneth A.P. Meyer ,  Joseph C. Carls ,  Haiyan Zhang ,  Gregory L. Abraham ,  Matthew S. Stay

IPC: H05K1/02 ,  H01Q1/38 ,  H05K1/03 ,  H05K3/00 ,  H05K3/10 ,  H05K3/20 ,  H05K3/24 ,  H05K3/46

CPC classification number: H05K1/0296 ,  H01Q1/38 ,  H05K1/0353 ,  H05K3/0014 ,  H05K3/103 ,  H05K3/207 ,  H05K3/244 ,  H05K3/4644 ,  H05K2201/09118 ,  H05K2203/0108 ,  H05K2203/0152 ,  H05K2203/0156 ,  H05K2203/0723

Abstract: A patterned conductive article includes a substrate having a first groove therein; a conductive seed layer disposed in the first groove; and a unitary conductive body disposed at least partially in the first groove. The conductive seed layer covers at least a majority of a bottom surface of the first groove, and the unitary conductive body covers the conductive seed layer and at least a majority of side surfaces of the first groove. In a plane through the unitary conductive body that is parallel to and separate from the conductive seed layer, the unitary conductive body has a lower first line edge roughness at a first interface with the side surfaces and the conductive seed layer has a higher second line edge roughness at an edge of the conductive seed layer.

公开(公告)号：US20240204414A1

公开(公告)日：2024-06-20

申请号：US18287356

申请日：2022-04-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ivan Lemesh ,  Sergei A. Manuilov ,  Michael S. Graff ,  Kevin W. Gotrik ,  John J. Sullivan ,  Raymond P. Johnston ,  Gregory M. Haugen

IPC: H01Q15/00

CPC classification number: H01Q15/0013

Abstract: Optically transparent reflectarray articles and methods of making and using the same are provided. The reflectarray article includes a frequency selective surface (FSS) layer and a ground plane layer disposed on opposite sides of a dielectric substrate. The FSS layer includes a pattern of wire-like resonating metallic elements configured to reflect incident mmWaves, and the ground plane layer includes a pattern of metal-based conductor mesh to provide conductivity and high visible light transmittance.

公开(公告)号：US20230405915A1

公开(公告)日：2023-12-21

申请号：US18447807

申请日：2023-08-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jodi L. Connell ,  Raymond P. Johnston ,  John J. Sullivan ,  Karl J.L. Geisler ,  Vivian W. Jones ,  Gordon A. Kuhnley ,  Patrick G. Zimmerman ,  Bradley W. Eaton ,  Kurt J. Halverson ,  Brian W. Lueck ,  Alexander C. Eldredge ,  Hyacinth L. Lechuga

IPC: B29C59/02 ,  B08B17/06 ,  B29C51/02

CPC classification number: B29C59/022 ,  B29L2031/756 ,  B29C51/02 ,  B08B17/065

Abstract: Films and articles are described comprising a microstructured surface having an array of peak structures and adjacent valleys. For improved cleanability, the valleys preferably have a maximum width ranging from 10 microns to 250 microns and the peak structures have a side wall angle greater than 10 degrees. The peak structures may comprise two or more facets such as in the case of a linear array of prisms or an array of cube-corners elements. The facets form continuous or semi-continuous surfaces in the same direction. The valleys typically lack intersecting walls. Also described are methods of making and methods of use. The microstructured surface of the article can be prepared by various microreplication techniques such as coating, injection molding, embossing, laser etching, extrusion, casting and curing a polymerizable resin; and bonding microstructured film to a surface or article with an adhesive.