Carrier tape containing mantissa marks
By setting protrusions and markings for the last digit of the material slots on the back of the carrier tape, the problem of carrier tape waste in semiconductor testing is solved, and the accuracy of carrier tape replacement and production efficiency are improved.
Patent Information
- Application Number
- CN202423081599.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-13
AI Technical Summary
In the semiconductor testing process, the problem of carrier tape waste is serious. Existing manual judgment and equipment monitoring solutions are inaccurate, resulting in carrier tape waste and low production efficiency.
Design a carrier belt with a tail number mark. By setting protrusions and grooves on the back of the carrier belt and setting marks on them, operators can accurately determine when to replace the carrier belt and avoid waste.
It effectively reduces carrier belt waste, improves production efficiency, simplifies operating procedures, enhances adaptability, and ensures the accuracy of carrier belt replacement timing.
Smart Images
Figure CN223560271U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to semiconductor test package material technical field, more specifically, the utility model relates to a carrier tape containing a mantissa mark. BACKGROUND
[0002] Semiconductor testing is usually carried out on a test handler equipped with a taping mechanism, and defective products are put into a scrap box, and good products are put into a taping mechanism, covered with a cover tape, and sealed by heat pressing, and wound into a disc, and each disc has a fixed length, which is called "single roll product" (hereinafter referred to as X1).
[0003] In order to reduce the waste of mantissa and reduce the packaging and logistics cost of carrier tape, the testing and packaging factory and the carrier tape manufacturer hope to appropriately extend the "large roll carrier tape" out of the factory, and each large roll is several hundred or even several thousand meters long (hereinafter referred to as S).
[0004] In the use of the testing and packaging factory, without considering any loss, it is assumed that the maximum number of single roll products that can be produced by each large roll carrier tape is n, then:
[0005] n = int (S / X1), X2 = mod (S, X1)
[0006] In fact, there are many factors affecting the length of the mantissa X2, mainly as follows:
[0007] 1. The length S of the "large roll carrier tape" out of the factory;
[0008] 2. The length X1 of the "single roll product";
[0009] 3. According to the process requirement, the length X3 of the sample for peel strength test;
[0010] 4. The length X4 lost during the maintenance process due to equipment abnormalities;
[0011] 5. The length X5 wasted due to re-taping during production;
[0012] 6. The length of the "single roll product" without changing the carrier tape but changing the product in the middle;
[0013] 7. The length of the equipment transformation in the middle;
[0014] 8. The order is not full disc…
[0015] Based on the above reasons, the timing of replacing the carrier tape is currently determined by manual judgment. If the best opportunity is missed, the product will not be full roll, which will cause retesting and re-taping, and even product scattering, resulting in packaging material waste and product loss; on the other hand, if the replacement is too early, it will cause carrier tape waste, which is one of the main reasons for carrier tape waste at present.
[0016] Take the example of the carrier tape with S=500m and X1=12.6m, the theoretical calculation is carried out based on different conditions of improper judgment of the operator:
[0017] The operator replacing one "single roll product" in advance will cause 4.24% waste, and replacing two "single roll products" in advance will cause 6.76% waste. The waste degree changes with the changes of S and X1, and the difficulty of judgment and the degree of misjudgment of the operator also change accordingly. For some products with long single roll, replacing two to three "single roll products" in advance is common.
[0018] In addition to manual judgment, the test sorting equipment usually has a monitoring scheme for the remaining length of the carrier tape. It requires manual setting of the length of the "large roll carrier tape", counting the cumulative use of the optical sensor to monitor the remaining length of the carrier tape, and giving an alarm prompt when the remaining length is less than the length of a "single roll product".
[0019] In fact, due to the certain difference in the length of the "large roll carrier tape" itself and the long time span between two replacements of the carrier tape, the maintenance and cover tape replacement therebetween will cause obvious deviation in counting, resulting in incomplete disc causing re-encoding or early replacement causing waste of encoding.
[0020] Therefore, the counting function of the test sorting machine is difficult to use in practice and is often ignored. The operators still estimate and judge the remaining length of the carrier tape according to their own experience to determine whether it is enough to produce a full roll product. To be on the safe side, the operator usually replaces it in advance, so the waste of the tail number of the carrier tape is very common.
[0021] The main difficulty for the operator to estimate and judge the remaining length of the carrier tape is the lack of reliable reference. In theory, the operator can visually estimate the cumulative thickness of the remaining carrier tape or accurately count the number of remaining turns, and then make a conversion. However, it is time-consuming and labor-intensive, which affects the production efficiency and is not the first choice for the operator. Practical new type content
[0022] In order to overcome the above-mentioned defects of the prior art, the utility model provides a carrier tape containing a tail number mark, which establishes a tail number mark for the "large roll carrier tape", so that the operator can accurately judge the replacement time of the carrier tape and completely eliminate the waste caused by improper manual judgment.
[0023] The utility model provides a carrier tape containing a tail number mark, characterized by comprising a carrier tape body, the back of the carrier tape body is uniformly fixed with a convex, the front of the carrier tape body is provided with a trough corresponding to the convex, the carrier tape body is provided with a positioning hole between the positions corresponding to the trough, and the convex at the rear of the carrier tape body is provided with a mark.
[0024] The length of the carrier tape body with the mark is equal to the length of a single product, the single product is a defective product entering a scrap box during semiconductor testing, a good product enters a carrier tape slot, is covered with a cover tape, is sealed by hot pressing, and is wound into a disc with a fixed length.
[0025] The bottom of the slot is provided with a round hole.
[0026] The outer side of the protrusion and the inner side of the slot are both subjected to a draft treatment.
[0027] The mark is a plurality of horizontal line marks.
[0028] Technical effects and advantages of the utility model:
[0029] Reduce carrier tape waste: by establishing a tail mark for the "large roll carrier tape", the operator can accurately determine the carrier tape replacement time at a glance, avoiding carrier tape waste caused by improper manual judgment or inaccurate equipment monitoring scheme. The setting of such tail marks effectively reduces the loss of carrier tape and materials caused by premature replacement or missed optimal replacement time.
[0030] Improve production efficiency: the setting of the tail mark allows the operator to no longer need to convert through visual inspection of the cumulative thickness of the remaining carrier tape or the number of remaining turns, thereby saving time and improving production efficiency. The operator only needs to simply check the back of the carrier tape at the entrance of the carrier tape track to quickly make a decision on whether to replace the carrier tape.
[0031] Enhance adaptability: the carrier tape design is flexible, and the length of the tail mark can be customized according to customer needs. In addition, the tail mark is set on the back of the carrier tape, avoiding the problem of affecting the function of the front of the carrier tape, and also making the mark easier to identify.
[0032] Simplify the operation process: compared with existing manual judgment or equipment monitoring schemes, the tail mark scheme provided by the patent is more intuitive, simple and reliable. It eliminates the difficulty and uncertainty of the operator in judging the remaining amount of carrier tape, making the operation process more standardized and easy to manage.
[0033] In summary, the patent effectively solves the problem of carrier tape waste in the semiconductor testing process by introducing the design of the tail mark, improves production efficiency, enhances adaptability, and simplifies the operation process. The utility model has a wide application prospect and value in the field of semiconductor testing packaging materials. BRIEF DESCRIPTION OF DRAWINGS
[0034] Figure 1 The utility model is a back structure schematic view;
[0035] Figure 2 Front structure schematic view of the utility model;
[0036] Figure 3 Three-dimensional structure schematic view of the utility model
[0037] Reference signs are:
[0038] 1, carrier tape body; 11, protrusion; 12, trough; 13, positioning hole; 14, mark; 15, round hole. DETAILED DESCRIPTION
[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0040] As shown in Figure 1 , Figure 2 and Figure 3 ,
[0041] A carrier tape with last number mark comprises a carrier tape body 1, the back surface of the carrier tape body 1 is uniformly and fixedly provided with protrusions 11, the front surface of the carrier tape body 1 corresponding to the protrusions 11 is provided with troughs 12, the positions between the troughs 12 on the carrier tape body 1 are provided with positioning holes 13, and the protrusions 11 at the rear part of the carrier tape body 1 are provided with marks 14.
[0042] The length of the carrier tape body 1 with the mark 14 is equal to the length of single-circle product, the single-circle product is a defective product entering a waste box when a semiconductor is tested, and a good product enters a carrier tape trough, is covered with a cover tape, is wound into a disc through heat pressing and sealing, and is fixed in length per disc.
[0043] The bottom of the trough 12 is provided with a round hole 15.
[0044] The outer side surface of the protrusion 11 and the inner side surface of the trough 12 are both subjected to draft treatment.
[0045] The mark 14 is a multi-line mark.
[0046] The utility model establishes a last number mark for a large-volume carrier tape, and the length of the last number mark is based on customer demand. The utility model avoids marking on the front surface of the carrier tape and instead marks on the outer surface of the trough at the back surface, so that the mark is easy to identify and does not affect the function of the carrier tape.
[0047] For example, for SOT23 package, the single roll length X1 = 12.6m, so a mark is made on the innermost part of the large roll carrier tape, that is, the beginning 12.6m length of the production of the large roll carrier tape, and then the normal non-marked state is restored. In this way, the operator only needs to check the carrier tape back surface at the carrier tape track entrance to make an accurate decision: if there is no mark, the next disc of product can continue to be produced, otherwise the large roll carrier tape must be replaced after the production of the roll of product is completed. This mark can effectively ensure the accuracy of the judgment.
[0048] The preferred embodiments of the present application are described above, but the present application is not limited to the above, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A tape and reel containing a mantissa flag, characterized by: The carrier tape body (1) is uniformly fixed with a protrusion (11) on the back, and the protrusion (11) is correspondingly provided with a material groove (12) on the front of the carrier tape body (1), and the carrier tape body (1) is provided with a positioning hole (13) between the material grooves (12), and the protrusion (11) on the back is provided with a mark (14).
2. A tape having a sign indicator according to claim 1, wherein: The length of the carrier tape body (1) with the mark (14) is equal to the length of a single product, the single product is a defective product entering a waste box during semiconductor testing, a good product enters a carrier material groove, is covered with a cover tape, is sealed through hot pressing, and is wound into a disc with a fixed length.
3. A tape having a sign indicator according to claim 1, wherein: The bottom of the material groove (12) is provided with a round hole (15).
4. The tape of claim 1 wherein: The outer side of the protrusion (11) and the inner side of the material groove (12) are both subjected to a draft treatment.
5. The tape of claim 1 wherein: The mark (14) is a multi-line horizontal line mark.