Tape Sticking Apparatus with Pre-Formed Cut-Lines
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Solution Overview
Problem
Conventional tape sticking methods damage ring frames, especially those made of resin, when cutting general-purpose dicing tapes to match their shape, leading to severe damage and weight issues during the dicing tape application process.
Innovation Solution
A tape sticking apparatus and method that includes a cut-line detecting device to determine if a cut-line is present on the tape base material, allowing the tape to be fed out without cutting if a cut-line is already formed, and cutting only when no cut-line is detected, using a cutting device to form a closed-loop-shaped cut-line matching the ring frame's shape, thereby preventing damage to the ring frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a general-purpose dicing tape is cut to match the ring frame shape, then the tape can be properly applied to the ring frame, but the ring frame is severely damaged by the cutter
Solution Approach 1:
The invention applies preliminary action by pre-forming cut-lines on the tape base material before the sticking process. The cut-lines are created in advance on the raw sheet, allowing the tape to be properly shaped without requiring cutting operations that would damage the ring frame during application.
Solution Approach 2:
The invention inverts the conventional approach by instead of cutting the tape to match the ring frame shape, it forms cut-lines on the tape base material that correspond to the ring frame shape, and then peels and applies the tape without damaging cutting operations on the ring frame itself.
2Manufacturing precision
If a cutting device is used to cut the dicing tape to match the ring frame shape, then the tape can be properly applied, but the complexity of the apparatus increases
Solution Approach 1:
The cut-lines are formed in advance on the tape base material before the sticking apparatus operates. This preliminary formation of cut-lines eliminates the need for complex cutting devices and operations during the sticking process, thereby reducing apparatus complexity while maintaining tape shape accuracy.
3Manufacturing precision
If the tape base material is cut to match the ring frame shape, then proper application is achieved, but time is lost in the cutting process
Solution Approach 1:
The cut-lines are formed in advance on the tape base material in a separate preprocessing step. This allows the main sticking apparatus to skip time-consuming cutting operations and proceed directly to peeling and application, thereby reducing overall processing time while maintaining tape shape accuracy.
Data Source
AI summary
A tape sticking apparatus includes a feed-out device for feeding out a raw sheet in which a strip-shaped tape base material is temporarily stuck on one surface of a strip-shaped release liner. A cutting device is configured to form a closed-loop-shaped cut-line on the tape base material to form a sticking tape. The apparatus further includes a peeling device for peeling the sticking tape from the release liner, and a sticking device for sticking the sticking tape to a workpiece. A collecting device collects the raw sheet after being peeled off the sticking tape by the peeling device.