Segmented transfer tape and method of making and use thereof

US10435590B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Martin B. Wolk · Woodbury, US
• Thomas J. Metzler · Okabena, US
• Samuel J. Carpenter · Shoreview, US
• Denis Terzic · Minnetonka, US
• Mitchell T. Nommensen · Oak Creek, US
• Suman K. Patel · Woodbury, US
• Mikhail L. Pekurovsky · Bloomington, US
• Donald G. Peterson · Shoreview, US

Key dates

• Filing date: Jun 13, 2016
• Grant date: Oct 8, 2019
• Expiry date: Oct 20, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2301/40
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The present disclosure relates to segmented transfer tapes useful in the transfer of only a portion of the segments of the transfer tapes and methods of making thereof. The segmented transfer tapes include a removable template layer having a structured surface; a transfer layer comprising a backfill layer, wherein the backfill layer has a structured first major surface, and an adhesive layer; at least one transferable segment formed in the transfer layer; at least one non-transferable segment formed in the transfer layer, the at least one non-transferable segment includes an adhesive surface, wherein a passivating layer is disposed on at least a portion of the adhesive surface of the at least one non-transferrable segment; and at least one kerf extending from the first major surface of the adhesive layer and into at least a portion of the removable template layer. The present disclosure also provides micro-optical assemblies and methods of making micro-optical assemblies from the segmented transfer tapes.