GB2317143A - Stencil incorporating electronic tag - Google Patents

Stencil incorporating electronic tag Download PDF

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Publication number
GB2317143A
GB2317143A GB9619279A GB9619279A GB2317143A GB 2317143 A GB2317143 A GB 2317143A GB 9619279 A GB9619279 A GB 9619279A GB 9619279 A GB9619279 A GB 9619279A GB 2317143 A GB2317143 A GB 2317143A
Authority
GB
United Kingdom
Prior art keywords
stencil
tag
data
tagging means
printing machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9619279A
Other versions
GB2317143B (en
GB9619279D0 (en
Inventor
David Godfrey Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Micromet Ltd
Original Assignee
Micro Metallic Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Micro Metallic Ltd filed Critical Micro Metallic Ltd
Priority to GB9619279A priority Critical patent/GB2317143B/en
Publication of GB9619279D0 publication Critical patent/GB9619279D0/en
Publication of GB2317143A publication Critical patent/GB2317143A/en
Application granted granted Critical
Publication of GB2317143B publication Critical patent/GB2317143B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/14—Forme preparation for stencil-printing or silk-screen printing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Screen Printers (AREA)

Abstract

A stencil or mask incorporating or including a tag/transponder capable of storing relevant characteristics and other data relating to the characteristics, performance and use of the stencil.

Description

STENCIL INCORPORATING ELECTRONIC TAG The present invention relates to a stencil or mask suitable for example for enabling the selective application of solder paste onto circuit boards. A stencil of this type is described in Patent No. GB2264460 of Micro Metallic Limited.
When setting-up a stencil of the above type for use in a solder paste printing machine, it is necessary to take into account various characteristics of the stencil for the purposes of calibration and quality control in respect of the subsequent processes for which it is to be utilised.
Currently, such setting up procedure can take, for example, up to 30 minutes each time a stencil is used and it would be of advantage to have some means of determining the specific characteristics of a particular stencil in a readily accessible manner to enable such to be quickly read and implemented. Electronic tagging means are known capable of storing reasonable amounts of data which can be read out utilising a touch reader or a remote interrogation device, for example an RF transmitter, the tag acting as a transponder capable of retransmitting the data contained within the tag when appropriately interrogated by an interrogator/tag reader.
It is the object of the invention to provide an improved stencil and tag arrangement capable of storing relevant data relating to the identity and characteristics of the stencil and which can be updated over a period to provide an historical record of use of the stencil, enabling quality control and setting up to be improved and monitored.
According to the present invention there is provided a stencil or mask incorporating a tag/transponder capable of storing relevant characteristics and other data relating to the characteristics, performance and use of the stencil.
The tag/transponder may be read either by means of a touch reader or remotely using an RF interrogator/tag reader and being capable of being updated during use.
The application of a tag to a stencil enables more rapid and accurate setting up and calibration of the printing apparatus to enable the stencil to be used and can be used to monitor its performance and use over a period of time.
In addition to the application of such to stencils of the abovementioned type, a tagging system as described may be applied also to other forms of mask used in other industrial processes enabling automatic or semi-automatic operation of equipment including the setting up procedure.
Also according to the present invention there is provided a system of printing solder paste onto electric circuit boards using a stencil printing machine having an operational control system, comprising etching or cutting or otherwise aperturing the stencil with a predetermined arrangement of apertures, selecting an electronic tagging means which is able to withstand the cleaning operations for the stencil and securing such to the normally upper surface of the stencil, storing data in the tagging means relevant to the at least characteristics of the stencil, interrogating the tagging means and off-loading the data into the operational control system of the printing machine, and then operating the printing machine to apply solder paste to a circuit board.
Preferably, operational data obtained from use of the printing machine will be input into the tagging means to update the data to provide for improved operation in the future. Preferably, also the tagging means has data relating to the characteristics of the paste to be used therewith.
The electronic tagging means may contain data relating, for example to size, pressure and speed of the printing head to be used, characteristics of the stencil, where used, type of paste to be used, etc.

Claims (7)

cnanfs
1. A stencil or mask incorporating or including a tag/transponder capable of storing relevant characteristics and other data relating to the characteristics, performance and use of the stencil.
2. A stencil as claimed in claim 1, in which the tag/transponder is readable either by means of a touch reader or remotely using an RF interrogator/tag reader and is capable of being updated during use.
3. A printing apparatus having automatic or semiautomatic operation including the setting-up procedure, to be used in combination with a stencil including a tag to enable the stencil to be used to enable a more rapid and accurate setting up and calibration and to enable the monitoring of its performance and use over a period of time.
4. A system of printing solder paste onto electric circuit boards using a stencil printing machine having an operational control system, comprising etching or cutting or otherwise aperturing the stencil with a predetermined arrangement of apertures, selecting an electronic tagging means which is able to withstand the cleaning operations for the stencil and securing such to the normally upper surface of the stencil, storing data in the tagging means relevant to the at least characteristics of the stencil interrogating the tagging means and off-loading the data into the operational control system of the printing machine, and then operating the printing machine to apply solder paste to a circuit board.
5. A system as claimed in claim 4, in which operational data obtained from use of the printing machine is input into the tagging means to update the data to provide for improved operation in the future.
6. A system as claimed in claim 4 or 5, in which the tagging means has data relating to the characteristics of the paste to be used therewith.
7. A system as claimed in any of claims 4 to 6, in which the electronic tagging means contains data relating, for example, to size, pressure and speed of the printing head to be used, characteristics of the stencil, where used, type of paste to be used individually or in combination.
GB9619279A 1996-09-16 1996-09-16 Stencil incorporating electronic tag Expired - Fee Related GB2317143B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9619279A GB2317143B (en) 1996-09-16 1996-09-16 Stencil incorporating electronic tag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9619279A GB2317143B (en) 1996-09-16 1996-09-16 Stencil incorporating electronic tag

Publications (3)

Publication Number Publication Date
GB9619279D0 GB9619279D0 (en) 1996-10-30
GB2317143A true GB2317143A (en) 1998-03-18
GB2317143B GB2317143B (en) 2000-06-07

Family

ID=10799988

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9619279A Expired - Fee Related GB2317143B (en) 1996-09-16 1996-09-16 Stencil incorporating electronic tag

Country Status (1)

Country Link
GB (1) GB2317143B (en)

Also Published As

Publication number Publication date
GB2317143B (en) 2000-06-07
GB9619279D0 (en) 1996-10-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050916