Browse Prior Art Database

Reel Design for Flex Tape Setup and in Process Sampling

IP.com Disclosure Number: IPCOM000010738D
Publication Date: 2003-Jan-15
Document File: 2 page(s) / 29K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method that uses a leader tape setup to perform process setup and in-process sampling without affecting the product tape. Benefits include an improvement in the process yield.

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Reel Design for Flex Tape Setup and in Process Sampling

Disclosed is a method that uses a leader tape setup to perform process setup and in-process sampling without affecting the product tape. Benefits include an improvement in the process yield.

Background

Currently, samples are removed from the section of tape that is used for production units (see Figure 1). The tape is spliced at the location that the sample was removed from. This in-line product monitoring leads to yield losses. Yield is also lost due to foreign materials introduced from handling, and chemical contamination from splicing adhesives.

General Description

The disclosed method incorporates a new leader tape layout to include additional tape in the middle of the leader for in-line product sampling and process setup.� Figure 2 shows the new leader layout with the setup section included. The sections that are clear leader tape (flanking the sampling section) are a minimum length that will span the longest process module, without engaging any process tape (either sampling tape, or product tape) in the process area of the module.� Attached to the end of the tape is a second in-line product sampling section that is isolated from the product tape by a section of leader tape.

Advantages

The disclosed method shows immediate improvement in the process yield. The improvement in handling procedures also results in a yield increase, due to a reduction in risk associated with acquiring samples in-process.

Fig. 1

Fig. 2

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