Source: http://www.google.com/patents/US20040004295?ie=ISO-8859-1&dq=U.S.+patent+number+7,325,728
Timestamp: 2014-08-01 10:30:50
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Patent US20040004295 - Smart label web and a method for its manufacture - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsThe invention relates to a method for the manufacture of a smart label web. The smart label web comprises smart labels placed one after another and/or side by side and comprising a circuitry pattern and an integrated circuit on a chip therein. In the method, an electrical contact is formed between the...http://www.google.com/patents/US20040004295?utm_source=gb-gplus-sharePatent US20040004295 - Smart label web and a method for its manufactureAdvanced Patent SearchPublication numberUS20040004295 A1Publication typeApplicationApplication numberUS 10/444,692Publication dateJan 8, 2004Filing dateMay 23, 2003Priority dateDec 11, 2000Also published asDE10197008B4, DE10197008T0, DE10197008T1, US7244332, WO2002049093A1Publication number10444692, 444692, US 2004/0004295 A1, US 2004/004295 A1, US 20040004295 A1, US 20040004295A1, US 2004004295 A1, US 2004004295A1, US-A1-20040004295, US-A1-2004004295, US2004/0004295A1, US2004/004295A1, US20040004295 A1, US20040004295A1, US2004004295 A1, US2004004295A1InventorsSamuli Stromberg, Marko HanhikorpiOriginal AssigneeRafsec OyExport CitationBiBTeX, EndNote, RefManReferenced by (7), Classifications (13), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetSmart label web and a method for its manufactureUS 20040004295 A1Abstract The invention relates to a method for the manufacture of a smart label web. The smart label web comprises smart labels placed one after another and/or side by side and comprising a circuitry pattern and an integrated circuit on a chip therein. In the method, an electrical contact is formed between the integrated circuit on a chip and the circuitry pattern of the smart label in the smart label web in such a way that a structural part separated from a separate carrier web and comprising an integrated circuit on a chip is attached to the smart label. The structural part contains a thermoplastic material whereby it is attached to the smart label. Images(6) Claims(22)
[0055] In the following, the invention will be described with reference to the appended drawings, in which [0056]FIG. 1 shows a smart label web according to the invention in a top view, [0057] FIGS. 2 to 3 show some processes of the invention for the manufacture of a smart label web, and [0058]FIG. 4 illustrates the structure of the structural part in a cross-section. [0059]FIG. 1 shows a smart label web W2 according to the invention, containing single smart labels 1 one after another in a continuous sequence. The smart label 1 contains a circuitry pattern 2 and an integrated circuit 3 on a chip, attached to the surface of a separate structural part 4. An electrical contact is formed between the circuitry pattern 2 and the integrated circuit 3 on the chip. The structural part 4 comprises a base web 4 b, a thermoplastic film 4 a and an integrated circuit 3 on a chip (shown in FIG. 3), attached to the surface of the thermoplastic film. The structural part 4 is attached to the smart label 1 in such a way that substantially the whole area of its one side is attached to the smart label 1 by means of a thermoplastic film. The integrated circuit on the chip 3 is left between the smart label 1 and its connection substrate. The thermoplastic film can be an anisotropic electroconductive film or a non-conductive film. If a non-conductive film is used, either the structural part 4 and/or the circuitry pattern 2 of the smart label must be provided with bumps for providing an electrical contact. The bumps can be provided before the lamination of the thermoplastic film on the same production line on which the chip is attached to the base web W1 in such a way that suitable bumps, whose material can be a suitable metal, are formed at the ends of the structural part 4. Preferably, so-called stud bumps are formed at this process step by means of a gold wire bonder. [0060]FIGS. 2a, 2 b and 3 show some processes for manufacturing a smart label web. FIGS. 2a and 2 b show a situation in which the carrier web W1 is first manufactured separately in a process shown in FIG. 2a, and the smart label web W2 is then manufactured in a process shown in FIG. 2b. FIG. 3, in turn, shows a process integrating the manufacture of the base web W1 and the smart label web W2. [0061] In the processes of FIGS. 2a and 3, the base web of the carrier web W1 is unwound from a reel 5 and the thermoplastic film is unwound from a reel 6. The thermoplastic film can be an anisotropic electroconductive film (AFC) or a non-conductive film (NCF). The base web and the thermoplastic film are combined in a nip N1 where at least one of the two contact surfaces is heated. The release paper web of the thermoplastic film is reeled up on a roll 7. [0062] From the wafer that is separated into single chips, a single chip is picked up which is placed onto the web consisting of the base web and the thermoplastic film by means of a fixing tool 9. Typically, the rate of picking up a chip from a wafer is about 200 ms. At the same time, the web is heated with a heater 8 at the location where the chip is placed, but on the opposite side of the web. The heating of the web causes that the thermoplastic film becomes tacky and the chip can thus be attached. The thermoplastic film is preferably heated to a temperature of 80 to 105� C. [0063] The final bond of the integrated circuit 3 on the chip is made by means of a thermal resistor or a series of thermal resistors 10. Thus, the thermoplastic film is preferably heated to a temperature of 140 to 150� C. Alternatively, the carrier web W1 can be led to a nip where at least one of the two contact surfaces is heated. The nip is preferably a nip longer than a nip formed by hard rolls. The nip can be for example a nip N1 formed by a thermoroll and a resilient roll, wherein the pressure per unit area is lower than in a corresponding hard nip. One of the contact surfaces forming the nip can also be a shoe roll. It is also possible that the heating takes place before the nip, wherein the thermoplastic film between the circuitry pattern of the smart label and the integrated circuit on the chip is heated for example by microwaves. The thermoplastic film is thus blended with additives which are heated by microwaves. After the heating by microwaves, the carrier web W1, onto which the integrated circuit on the chip is placed, is introduced to a process step where pressure is exerted on the joint surface. It is also possible that the heating by microwaves and the application of pressure on the joint surface take place simultaneously. [0064] The force which is exerted to the joint is preferably 200 to 800 g per joint, irrespective of which of the above-mentioned methods for exerting pressure on the joint is used for making the final bond of the chip. Typically, the process time required for making the bond is about 2 seconds. As the dimension of a single structural part is 10 to 20 mm, the processing length should be about 200 mm to avoid restricting the cycle time of 200 ms which is taken by picking up a chip from the wafer and placing it in its position on the surface of the thermoplastic film. [0065] It is also possible to include in the processes of FIG. 2a or 3 the lamination of the structural part 4 with a thin dielectric film (not shown in the figures), wherein this film is used as a dielectric between the circuitry pattern 2 and the chip 3. At the location where the electrical contact shall be provided, the film can be removed for example by punching. [0066] The finished carrier web W1 is reeled up on a roll 15 (FIG. 2a) and moved on to the next process (FIG. 2b) or led further in the process (FIG. 3). In the process of FIG. 2b, the roll 15 is unwound. The carrier web W1 is separated by a cutter 11 into single structural parts 4. The web containing smart labels 1 is unwound from the reel 13. A dispenser 12 places the structural parts 4 in a focused manner onto the surface of the smart label 1 of the web containing smart labels. The structural parts 4 can also be readily separated on the surface of the carrier film. The dispensers 12 are known as such. A dispenser for dispensing structural parts 4 from a carrier web W1 is known e.g. from special and security printing machines in which security bands, holograms or foils are supplied. On the other hand, if the structural parts 4 are separated on the surface of the carrier film, it is possible to apply a technology that is known e.g. from the dispensing of labels. [0067] The web that is unwound from the roll 13 is heated simultaneously when the dispenser 12 places the structural part 4 onto the smart label 1. If the thermoplastic film used is a non-conductive thermoplastic film, the structural part 4 or the circuitry pattern of the smart label must be provided with bumps for providing an electrical contact between the chip and the circuitry pattern. If there are several smart labels 1 next to each other, preferably each parallel sequence of smart labels should be provided with a separate dispenser. The thermoplastic film 4 a of the structural part 4 adheres to the smart label 1, and the integrated circuit on the chip 3 is left between the smart label 1 and the thermoplastic film 4 a. The final bond of the structural part 4 is made in a nip N2. The nip N2 can be a single nip, as shown in the figure, or it can be a series of nips. Preferably, at least one of the two contact surfaces forming the nip is heated, and at least one is resilient. The finished smart label web W2 is reeled up on a reel 14. [0068]FIG. 4 shows the cross-section of the structural part 4. The structural part comprises an integrated circuit on a chip 3, a thermoplastic film 4 a, and a layer 4 b consisting of the base web. On the surface where the thermoplastic film 4 a is attached, the layer 4 b is provided with the conductive metal coating of the structural part. [0069] The above-described facts do not restrict the invention, but the invention may vary within the scope of the claims. The manufacture of the carrier web and the manufacture of the smart label web can take place in the same process or they can be separate processes. The process of manufacture of the smart label web can be continued so that the other layers to be joined to the surface of the smart label web are attached in the same process, even so that the attachment is made simultaneously with the final bond of the structural part. It is also possible that the chip is only tacked lightly to the carrier web and the final bond of the chip is not made until the step in which the structural part is finally attached to the smart label. The process thus becomes simpler and more reliable, because the chip will not be subjected to e.g. heating, pressure or bending several times. The thermoplastic material is not necessarily in the form of a film but it can be, as a raw material before application on the web, for example in fluid form. The main idea of the present invention is that an integrated circuit on a chip can be attached to a smart label in a simple and reliable manner as a part of a separate structural part. Referenced byCiting PatentFiling datePublication dateApplicantTitleUS7264993Jan 19, 2005Sep 4, 2007Atlantic Zeiser GmbhMethod for producing information carriersUS7410826 *Dec 20, 2005Aug 12, 2008Seiko Epson CorporationApparatus for manufacturing an electronic device, method of manufacturing an electronic device, and program for manufacturing an electronic deviceUS7506813Dec 22, 2005Mar 24, 2009Quad/Graphics, Inc.Resonator use in the print fieldUS8128001 *Feb 23, 2010Mar 6, 2012Brother Kogyo Kabushiki KaishaRFID label, method for producing the RFID label, device for producing the RFID label, sheet member (tag sheet) used for the RFID label, and cartridge attached to the device for producing the RFID labelUS20100155491 *Feb 23, 2010Jun 24, 2010Brother Kogyo Kabushiki KaishaRFID label, method for producing the RFID label, device for producing the RFID label, sheet member (tag sheet) used for the RFID label, and cartridge attached to the device for producing the RFID labelEP1560155A1 *Jan 31, 2004Aug 3, 2005Atlantic ZeiserGmbHManufacturing method for non-contact chip cardsWO2006122266A2 *May 10, 2006Nov 16, 2006Sam M ChaouiContinuous lamination of rfid tags and inlets* Cited by examinerClassifications U.S. Classification257/783, 257/723, 438/118, 438/119, 438/110International ClassificationB42D15/10, G06K19/07, H01L21/60, G06K19/077Cooperative ClassificationG06K19/07718, G06K19/07749European ClassificationG06K19/077D, G06K19/077TLegal EventsDateCodeEventDescriptionOct 10, 2012ASAssignmentEffective date: 20120927Owner name: SMARTRAC IP B.V., NETHERLANDSFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UPM RAFLATAC OY;REEL/FRAME:029103/0366Jan 18, 2011FPAYFee paymentYear of fee payment: 4Apr 11, 2007ASAssignmentOwner name: UPM RAFLATAC OY, FINLANDFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UPM RAFSEC OY;REEL/FRAME:019147/0058Effective date: 20070308Sep 22, 2003ASAssignmentOwner name: RAFSEC OY, FINLANDFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:STROMBERG, SAMULI;HANHIKORPI, MARKO;REEL/FRAME:014524/0021Effective date: 20030814RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google