Patent · US Active

Flexible device including conductive traces with enhanced stretchability

US11503720B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Saagar A. Shah · Minneapolis, US
Mikhail L. Pekurovsky · Bloomington, US
Ankit Mahajan · Sammamish, US
Lyudmila A. Pekurovsky · Bloomington, US
Jessica Chiu · Woodbury, US
Jeremy K. Larsen · Providence, US
Kara A. Meyers · Oakdale, US
Teresa M. Goeddel · Windom, US
Thomas J. Metzler · Okabena, US
Jonathan W. Kemling · Woodbury, US
Richard J. Pokorny · Maplewood, US
Benjamin R. Coonce · South St. Paul, US
Chad M. Amb · Roberts, US
Thomas P. Klun · Lakeland, US

Key dates

Filing date	Sep 12, 2019
Grant date	Nov 15, 2022
Priority date	—
Expiry date	Sep 12, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH05K3/284
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

Flexible devices including conductive traces with enhanced stretchability, and methods of making and using the same are provided. The circuit die is disposed on a flexible substrate. Electrically conductive traces are formed in channels on the flexible substrate to electrically contact with contact pads of the circuit die. A first polymer liquid flows in the channels to cover a free surface of the traces. The circuit die can also be surrounded by a curing product of a second polymer liquid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.