Tape and Reel Packing Material Restriction Structures
Solution Overview
Problem
Conventional tape and reel packing materials cause chip damage due to collisions with recess walls during transportation and inadequate attachment of the cover tape, leading to chips becoming jammed or separated.
Innovation Solution
The tape and reel packing material incorporates a cover tape with restriction structures, including central and peripheral restriction portions, to limit chip movement, preventing collisions and separation by attaching to the carrier tape via specific attachment areas with adhesive layers and substrate configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the recess space is large to accommodate the chip, then the chip can be easily placed, but the chip collides against the inner wall during transportation and becomes damaged
Solution Approach 1:
The recess is segmented into multiple functional zones: a first recess portion for chip placement, a second recess portion with restricted space to prevent movement, and a guiding slope to guide the chip into position. This segmentation allows the chip to be easily placed while preventing collision damage during transportation.
Solution Approach 2:
Different regions of the recess have different spatial characteristics optimized for specific functions: the first recess portion has sufficient space for easy chip placement, while the second recess portion has restricted space to prevent chip movement and collision, and the guiding slope has a specific angle (65-85 degrees) to facilitate chip insertion.
2Ease of manufacture
If the cover tape is not sufficiently attached to the carrier tape, then the assembly is easier to manufacture, but the chip may leave the recess and get jammed between the cover tape and carrier tape
Solution Approach 1:
The cover tape is pre-attached to the carrier tape in the attachment area before the chips are placed in the recesses. This preliminary attachment ensures that the cover tape maintains proper positioning relative to the carrier tape, preventing chips from leaving the recesses and getting jammed during subsequent handling and transportation.
Solution Approach 2:
The recess structure acts as an intermediary mechanism between the cover tape and carrier tape. By providing physical constraints through the recess walls and the second recess portion, the structure prevents direct contact and potential jamming of chips between the cover tape and carrier tape, while still maintaining adequate attachment.
3Reliability
If the cover tape is fully attached to the carrier tape, then the chip is securely held, but the manufacturing process becomes more complex
Solution Approach 1:
The cover tape is divided into distinct functional areas: an attachment area for bonding to the carrier tape and a restriction area with recesses for chip containment. This segmentation allows the attachment process to be localized to specific regions, simplifying manufacturing while ensuring reliable chip security through the recess structures.
Solution Approach 2:
The attachment properties are localized to the attachment area where the cover tape bonds to the carrier tape, while the restriction area maintains structural features (recesses with guiding slopes) that provide chip containment. This local differentiation of properties enables secure chip holding without requiring complex full-surface attachment.
Data Source
AI summary
A tape and reel packing material for packaging a plurality of chips is provided. The tape and reel packing material includes a carrier tape and a cover tape. The carrier tape includes a plurality of recesses. The recesses are configured to receive the chips respectively. The cover tape is attached to the carrier tape. The cover tape includes a plurality of restriction structures, and the restriction structures respectively are inserted into the recesses to restrict the freedom of the movement of the chips.