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Method for a multiple print-head stencil tool

IP.com Disclosure Number: IPCOM000020238D
Publication Date: 2003-Nov-04
Document File: 2 page(s) / 38K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a multiple print-head stencil tool. Benefits include improved functionality.

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Method for a multiple print-head stencil tool

Disclosed is a method for a multiple print-head stencil tool. Benefits include improved functionality.

Background

Multiple tools are required to perform multiple tasks. To change the task that a tool can perform, the printhead must be changed. The change requires tool downtime and the services of an equipment technician. As a result, the work process cannot be fully automated.

Stencil applications are conventionally performed using squeegee blades that move across the stencil-filling material in apertures. The material is constantly on the stencil and scraped back and forth by the blades. Alternatively, a cartridge holds the materials by the seal between the print head and the stencil (see Figure 1).

General description

The disclosed method is a stencil print tool with multiple printheads that can change functions to perform the task required. The method includes software for input and automated control. The method enables automatic head changeover without direct human

intervention (other than through software control).

         The key elements of the method include:

•         Stencil print tool with multiple print heads

•         Solder paste

•         Encapsulation material

•         Die-attach material

•         Solder balls

•         Ultraviolet (UV) lamp

Advantages

         The disclosed method provides advantages, including:

•         Improved functionality due to providing a multiple print-head stencil tool

•         Improved functionality due to enabling faster, automated switching bet...