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Dual Carrier Stencil Printing in Parallel on the DEK 265 for Large Aperture Applications

IP.com Disclosure Number: IPCOM000010180D
Publication Date: 2002-Oct-30
Document File: 2 page(s) / 35K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method of stencil printing on large apertures in which gross vision check achieves acceptable alignment accuracy. The disclosed method is a simultaneous, parallel configuration on two carriers during one print stroke, which increases the throughput by doubling the UPH (units per hour).

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Dual Carrier Stencil Printing in Parallel on the DEK 265 for Large Aperture Applications

Disclosed is a method of stencil printing on large apertures in which gross vision check achieves acceptable alignment accuracy. The disclosed method is a simultaneous, parallel configuration on two carriers during one print stroke, which increases the throughput by doubling the UPH (units per hour).

Background

Currently, the stencil printer in ATD (DEK 265) prints one carrier at a time. The carrier enters the printing platform, aligns with the stencil using fiducials, and then the squeegee prints the carrier before another carrier enters the platform.

General Description

The disclosed method modifies the printing platform so that two carriers can enter the platform at the same time, and can be processed during one single print stroke. The two carriers enter the printing platform at the same time, align with the stencil at the same time, and are processed at the same time with one single print cycle. An optional 2:1 shuttle might be needed depending on the conveyor design of the next tool. The disclosed method requires some modification on the printing platform to have two separate sets of rails to transport the carriers and two separate sets of board clamps to hold down the carriers during printing.

The disclosed method targets printing on large apertures, in which gross vision check achieves acceptable alignment accuracy. The vision system is not changed for this method. The stencil ha...