EP2067395A1 - Gestion des stocks pour la fabrication de cartes à circuit imprimé - Google Patents

Gestion des stocks pour la fabrication de cartes à circuit imprimé

Info

Publication number
EP2067395A1
EP2067395A1 EP20070839086 EP07839086A EP2067395A1 EP 2067395 A1 EP2067395 A1 EP 2067395A1 EP 20070839086 EP20070839086 EP 20070839086 EP 07839086 A EP07839086 A EP 07839086A EP 2067395 A1 EP2067395 A1 EP 2067395A1
Authority
EP
European Patent Office
Prior art keywords
reel
held device
hand held
feeder
console
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.)
Withdrawn
Application number
EP20070839086
Other languages
German (de)
English (en)
Inventor
Chris Woodward
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.)
ASMPT GmbH and Co KG
Original Assignee
Siemens Energy and Automation Inc
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
Priority claimed from US11/905,221 external-priority patent/US20080078834A1/en
Application filed by Siemens Energy and Automation Inc filed Critical Siemens Energy and Automation Inc
Publication of EP2067395A1 publication Critical patent/EP2067395A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/08—Monitoring manufacture of assemblages
    • H05K13/086—Supply management, e.g. supply of components or of substrates

Definitions

  • the invention relates inventory management software and devices that monitor all aspects of surface mount technology (SMT) placement machines in real time.
  • SMT surface mount technology
  • An object of the invention is to fulfill the need referred to above.
  • this objective is obtained by a method of managing inventory of a printed circuit board assembly line.
  • the method provides an identifier on material to be used on the assembly line.
  • the identifier is scanned with a portable handheld device prior to machine set up. Based on the scan, a part number of the material is verified.
  • Information is sent to the hand held device so as to instruct an individual associated with the hand held device to perform a specific task, with regard to the assembly line, as indicated on the hand held device.
  • a system for managing inventory of a printed circuit board assembly line includes a server having a processor.
  • At least one portable hand held device includes a scanner.
  • the hand held device is in communication with the server.
  • the scanner is constructed and arranged to scan an identifier on material used in the assembly line.
  • the processor is configured for executing a process to verify the scanned identifier. Once the material is verified, the server is configured for sending information to the hand held device to instruct an individual associated with the hand held device to perform a specific task, with regard to the assembly line, as indicated on the hand held device.
  • FIG. 1 is a schematic view of a system for monitoring, in real time, component placement machines of an electronics component assembly line in accordance with an embodiment of the invention.
  • FIG. 2 is a view of a hand held SIM Assistant in accordance with an embodiment of the invention. DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
  • SIPLACE Inventory Manager system, shown generally indicated at 10, is provided to control inventory of tables, component packaging, and feeders of SMT placement machines 11 , on an assembly line such as a SIPLACE line and arbitrary warehouse locations.
  • the system 10 includes the following functional modules: SIPLACE Inventory Manager Assistant (SIM Assistant) 12, SIPLACE Inventory Manager Service (SIM Service) 14, and at least one SIPLACE Inventory Manager Console (SIM Console) 16.
  • SIM Assistant SIPLACE Inventory Manager Assistant
  • SIM Service SIPLACE Inventory Manager Service
  • SIM Console SIPLACE Inventory Manager Console
  • the system 10 uses a database 18 on server 20 (e.g., Microsoft SQL Server) to store customer data.
  • server 20 e.g., Microsoft SQL Server
  • the system 10 includes a software package configured to preferably work directly with SIPLACE Pro, a software package from Siemens.
  • the modules of the system 10 can be implemented as executable code stored on a computer readable media (e.g., a hard disk drive, a floppy drive, a random access memory, a read only memory, an EPROM, a compact disc, etc.)
  • the SIM Service 14 is provided on the server 20 having a processor 22 for executing the code.
  • the system 10 preferably uses SIPLACE Pro as the single source for fine and component data.
  • the system 10 can manage the same number of lines as defined in SIPLACE Pro. It is not possible to configure a single SIM installation to work with multiple SIPLACE Pro installations.
  • the relationship between a SIPLACE Pro installation and a SIM system 10 installation is one to one.
  • the system 10 preferably uses SIPLACE History for all historical data. SIPLACE History is responsible for proving the current setup and line configuration corresponding to the most recent download for a line. SIPLACE History also provides setup data for a specific setup or recipe as required for off-line setup verification.
  • the SIM Assistant 12 is responsible for proving the current setup and line configuration corresponding to the most recent download for a line. SIPLACE History also provides setup data for a specific setup or recipe as required for off-line setup verification.
  • the SIM Assistant 12 is a portable hand-held PDA with a touch screen display 24, a scanner 26, and a keyboard 28.
  • the SIM Assistant 12 includes executable code stored on a computer readable media of the type disclosed above.
  • the server 20 executing SIM Service 14 preferably communicates with the SIM Assistant 12 in a wireless manner.
  • the primary purpose of the SIM Assistant 12 is to aid the operator to perform off-line and on-line setup verification, and to keep the operator apprised of on-line table inventory, which is constantly consumed by the placement machine, that is currently low. At production time, the user can view the priority of dwindling component supplies before a machine runs out.
  • a single installation of SIM Service 14 supports multiple SIM Assistants 12 in the same enterprise.
  • the SIM Assistant 12 may be user configured to support only a subset of all possible lines available in SIPLACE Pro.
  • Server URL The URL to a folder, which is hosting the SIM Assistant installation. This URL is used for the initial SIM Assistant installation and subsequent automatic software updates.
  • the SIM Assistant user interface contains a single active window at any one time.
  • the notification window may be displayed or hidden at any time.
  • the notification window informs the user of errors or activity that has recently occurred.
  • the main window is the first form visible to the user and is the surface onto which all active windows are placed.
  • Tools Menu The tools menu contains the following menu items:
  • Hit List allows the user to view the current hit list.
  • Off-line Setup allows the user to perform off-line setup verification.
  • Packaging Search allows the user to search table for expected allocation of particular part numbers.
  • the settings menu contains the following menu items:
  • the line view is used to perform on-line setup verification, to perform offline setup verification, and to display the production line view for refilling.
  • the line view opens with the following attributes which determine its behavior:
  • Task Type Current task of the operator, i.e. off-line or on-line setup verification.
  • Scan Mode This is track driven for on-line setup verification.
  • the user may choose component driven or track driven.
  • the line view window displays the following:
  • a single level is displayed.
  • the user may select which level is visible by the context menu or by scanning a level barcode.
  • the divisions in the level are color coded according to the state of the components in that tray.
  • the user can either use the scanner 22 or the graphic display to arbitrarily select a station location, table, or track within the line.
  • the line view form executes a workflow, which uses the task settings for the task type combined with the appropriate packaging workflow.
  • the packaging workflow is determined by the component. If the component does not have a selected workflow, the default packaging workflow is used.
  • the software guides the user as defined by the task type and workflow through the line.
  • the line view visually displays the position in the line and table for the user to recognize where they are supposed to be.
  • the workflow continues advancing automatically unless the user overrides the default flow by scanning or graphically selecting another station location, table, or track than the software has targeted.
  • the user may use the selected workflow to place changeover tables at a station location and to place component packaging on a changeover table.
  • the user may also choose to remove a changeover table, feeder, or component packaging by invoking the context menu for the respective item.
  • the line view form is refreshed if an update to the table is detected.
  • Table updates may occur from the station interface, another SIM Assistant, or from the SIPLACE Inventory Manager Console (described below).
  • An inventory input form is used to create new component packaging item in the system inventory.
  • the inventory input form implements a workflow using the task settings determined by the inventory input task type.
  • the inventory input form displays the following:
  • a hit list form is used to display the next 10 feeder divisions which are expected to require component refill. From the hit list form the user can view which tracks will soon require attention and can directly invoke a production line view in refill mode for a selected track.
  • the hit list form contains the following elements:
  • the hit list form supports the following actions:
  • the select recipe/setup form is used to select the recipe or setup for offline setup verification. This form appears when the user selects "Tools->Off-line Setup" or selects the off-line setup icon from the main form.
  • the select recipe/setup form contains the following elements:
  • the select line form is used to re-enter the most recently downloaded setup for a selected line.
  • the select line form contains the following elements:
  • SIM Assistants 12 are expected to receive download event notifications and to search for packaging on lines to which it subscribes.
  • the subscribe-to-line form contains the following elements:
  • the packaging search form is used to find track/divisions or tower/levels which contain a particular part.
  • the packaging search form will only search for components within a particular line if the packaging search form is opened from a line view.
  • the packaging search form searches all lines to which the SIM Assistant 12 is subscribed if it is opened from the main window.
  • the packaging search form contains the following elements:
  • the packaging search form supports the following events:
  • the barcode test form is used in combination with the SIPLACE Inventory Manager Console 16 to determine if a printed barcode conforms to a barcode format.
  • the SIM Assistant 12 device remains in this mode sending scanned barcode information directly back to the SIM Console 16 where, presumable, the same user is configuring barcode formats and wishes to test them.
  • the barcode test form will contain the following Ul elements
  • workflow forms are executed within the context of an inventory input or line view form.
  • workflow forms implement the task types specified by the combination of the selected task type and the selected packaging workflow.
  • the selected task type determines the task item that the workflow will begin.
  • the following displays task types and their starting task item.
  • Identify component can be overridden by part number barcode or packaging identifier.
  • the user may reset the current position by scanning an item or selecting a graphic element higher in the above sequence. For example, if the user has just scanned a track barcode, the software waits for component identification next. If the user suddenly changes their mind, they can scan any other track barcode and the workflow will switch to that track. This redirection is possible with any task item in the workflow.
  • the user may scan component attributes ahead of scanning the barcodes required to identify the component. This allows the user to scan barcodes found on the packaging unit in any order.
  • a workflow will begin with the start task item, prompt the user for barcodes defined for that task type and move forward through task items until all task items have been completed.
  • a task item is considered to have been completed if all of the barcodes for that task item have been scanned or otherwise defined correctly.
  • the workflow form returns to the starting task item once all task items in the workflow have been completed or if the station location is changed. See tasks below for how workflow forms apply to each task type.
  • On-line setup verification uses a line view, which executes a workflow with a start task type of identifying a changeover table (if changeover tables are used) or identifying a component.
  • On-line setup verification is invoked when the user clicks "Verify" on the notification window which appears when a new setup has been downloaded to a line.
  • Off-line setup verification uses a line view that executes a workflow with a start task type of identifying a changeover table. Off-line setup verification may be component driven or track driven.
  • the user is expected to choose the correct track first and then choose the correct part for that track.
  • the user may choose the correct track by selecting the track barcode, by touching the track on the PDA screen, or by allowing the workflow to automatically advance to the next track which requires attention.
  • the user may scan any component packaging that is required for the current setup.
  • the workflow form will automatically select the track where the part is to be placed.
  • Inventory input executes a workflow with a start task type of identify component.
  • the packaging workflow used is determined by the drop down list on the form.
  • Production line view is the same as online setup verification except that any reels placed on feeders are treated as splices instead of replacements. Trays in the WPC or MTC are replaced.
  • the SIM Console 16 is preferably remote from the servers 20 and in communication therewith.
  • the console 16 includes at least a keyboard and a display so as to provide a visual live view of all inventory items in the factory via the SIM data analyzed at the server 20.
  • the SIM console 16 refreshes itself as changes are made using the SIM Assistant 12. From the SIM Console 16, it is possible to see where component packaging items, tables, and feeders are currently allocated. The user can view all individual inventory items within the enterprise.
  • the SIM Console is used to define workflows for component part numbers, inventory item barcodes, and inventory barcode labels.
  • the visual system allows the user to easily select and view the information they are looking for. Alarming issues such as low component inventory on a feeder or needed refills are easy for the user to spot with the visual functions.
  • the SIM Console 16 has the following configuration options.
  • the SIM Console 16 is a single document interface application.
  • the workspace of the application is arranged into three areas: tree control manager, editor workspace, and notification window.
  • the tree control manager contains one tree for each of the SIM objects.
  • the editor workspace contains an object editor appropriate for the object selected in the tree view.
  • the notification window will display recent activity and errors.
  • the tree control manager contains the following tree controls:
  • the root item for each tree control is the name of the tree control (i.e. "My Barcodes"). Except for the “My Tasks” tree and “My Barcodes” tree, the objects for each tree appear beneath the root node optionally grouped into folders. See next section for description of "My Tasks”.
  • Each tree includes a context menu which contains the following menu items: Add Folder, Add ⁇ object>, Rename, and Delete.
  • the Add menu item for "My Tables" and "My Feeders” will lead to an additional menu item list requiring the user to specify the table type or feeder type.
  • the tasks tree control includes "My Tasks" as the root node. Two nodes, “Task Settings” and “Packaging Workflows” appear beneath the root nodes.
  • the task settings node includes the three fixed task types: setup verification, inventory input, and off-line setup verification. Workflows, which may be component specific, appear below the packaging workflows node.
  • the barcodes tree control includes "My Barcodes” as the root node. Two nodes, “System” and “User” appear beneath the root node. Barcodes which apply to component packaging appear beneath the "User” node. Barcodes, which are provided by Siemens such as default station, track, and changeover table barcodes, appear beneath "System”.
  • Each object editor allows the user to view or edit the attributes of the object.
  • the barcode editor allows the user to specify barcode attributes and how a barcode will be used by the SIM Assistant 12.
  • the barcode editor allows the user to Create one or more fragments for a barcode.
  • Barcode Label Editor The barcode label editor will be used to define the layout of barcode labels on media.
  • the layout attributes will include the size of each label, number of label columns and rows per page, space between each label, header and left margin size.
  • the SIM Service 14 monitors the status and/or data from all SMT placement machines in an SIPLACE line to determine the next most logical operation to perform so as to make the line more efficient. The determined operation is communicated to the SIM Assistant 12 on the assembly line floor such that the user of the SIM Assistant 12 becomes a resource of system 10.
  • the SIPLACE Inventory Manager Service polls a folder for *.XML files every 2 seconds. These XML files are expected to contain packaging data and conform to the format specified below. Each component packaging is entered into the SIPLACE Inventory Manager database.
  • XML files are expected to be placed in the folder identified by the registry entry HKLM ⁇ Software ⁇ SIEMENS SI PLACEXSI PLACE Inventory Manage ⁇ XMLImportFolder.
  • the default folder import is c: ⁇ xmlimport.
  • the purpose of the station interface is to notify the SIPLACE Station of component packaging locations, to block and open tracks, and to receive notifications from SIPLACE machines regarding used components and feeder positions.
  • a feeder is automatically created if the SIM Assistant 12 attempts to add a reel to a track/table but a feeder does not exist at that location.
  • This feeder is created of the type specified by the most recently downloaded setup or the selected offline setup.
  • a reel which is in the setup and marked as used, but is not present in inventory, will be considered unverified and will be blue.
  • a reel which is not the correct part number, or is on a feeder which has the incorrect dimensions, will be considered error and will be red.
  • a reel which exists in the setup but is marked as not used will be considered unused and will be white.
  • a reel which is at the correct place and is using a feeder of the correct dimensions but has not been scanned is considered to be matched and will be orange.
  • the feeder will be unverified and will be blue. If all divisions of a feeder are empty, the feeder will be empty. If any division of the feeder is matched but not scanned, the feeder will be matched and will be orange.
  • Feeders are considered temporary if they are located in a folder named "Temporary Feeders”.
  • Feeder Divisions Attributes
  • a feeder division's nScanned attribute is marked as 1 (true) if any reel on that division has been scanned.
  • nScanned attribute for all feeder divisions on a table is marked 0 (false) when a changeover table is connected to a station location.
  • the first division, of the first feeder of the first table which is either error, unverified, or matched will be selected.
  • a temporary component packaging will be created if a user scans in an acceptable part barcode but does not scan in a reel identifier.
  • any feeder on a table is in error, the table will be considered in error and will be red. If any feeder on the table is unverified, the table will be unverified and will be blue. If all feeders of a table are empty, the table will be empty. If any feeder of the table is matched but not scanned, the table will be matched and will be orange.
  • Table locations are used to represent each changeover table docking point on each station.
  • Temporary changeover tables are created and placed at each table location which does not have a COT in place at the start of any line view.
  • the temporary tables will be created of the type required by the setup, or the type will be null if there are no reels required at a particular location.
  • a table of unknown type will be displayed as having 120 tracks.
  • the system 10 is an inventory control and setup verification system and provides for 1) inventory input, 2) set up verification, 3) material levels, 4) task optimization, and 5) traceability, as explained more fully below.
  • the system 10 allows all reels being used in SMT production to be scanned into a database, prior to setup or even prior to entering the SMT area, e.g., in a receiving area.
  • the operator scans the reel here with the Assistant 12 for part number and quantity.
  • the part number of the reel is verified by comparing the part number with data in the database 18.
  • the reel is scanned only once.
  • the part number and quantity information is associated with the unique ID and is updated during production. Additional information such as vendor and lot code can also be scanned if required.
  • the quantity on the reel is decremented in the database 18.
  • the use of unique identifications on the reels can facilitate capturing all the necessary component data (e.g., location and quantity) before the reels reach the shop floor. This ensures more accurate traceability.
  • the component count is updated in the database during production for tracking purposes. Barcodes can be created directly with the system 10.
  • the SIM Assistant 12 allows set ups to be verified offline on a mobile feeder table before product changeover. The user selects the offline set up function from the SIM Assistant display 24 and then selects the set up function that needs to be verified. Set ups are directly imported and automatically updated from the SIPLACE Pro database.
  • the SIM Assistant 12 displays a view of the table with the status of each feeder on it. A color code is used where green indicates "verified”, red indicates “incorrect”, blue indicates “not verified” and white indicates "feeder not required”.
  • the workflow for the operator is configurable for ease of use. Components can be scanned by track number.
  • the user can scan the component part number first and the system will indicate which feeder and location to load the real onto. Once the table is verified, it can be docked into the machine during changeover. In addition, by scanning the table ID to the machine location ID, the system 10 can ensure that a verified table is ready to run.
  • the system 10 records and displays quantities and locations of all material consumed and all material still available for production in real time.
  • the component level indicator is located on the graphical user interface (GUI) 30 of each machine 11 (FIG. 1). The operator is informed when they need to refill a certain track before it runs empty.
  • Two levels can be programmed by the user: 1 ) when to set the warning and request a refill and 2) when to deactivate the track (before the tape disappears) enforcing a barcode scan and allowing still enough tape to splice (splicing is faster an inserting a new tape).
  • the SIM Assistant 12 shows the same information on a hit list (visually displayed list) as the hit list shown on each machine GUI 30. Thus, the sequential order of components that need to be refilled by time or component count is shown.
  • An advantage of the SIM Assistant 12 is that the component level hit list is visible to the operator wherever they may be. The component levels for one line or several lines can be compiled into one summary hit list on the SIM Assistant 12. The hit list guides the user to the next reel that needs to be replenished. This is determined by the component level on the reel and the BOM for the circuit board. Once a new reel has been spliced, the SIM Assistant 12 verifies that the correct components are used to replenish reels during production. The component level for that track is updated in the database 18.
  • the operator is guided to the next most important task.
  • the system 10 indicates to the operator which tasks must be performed and at which location it must be done by a visual display (hit list). Workflow is thus configurable for optimal tasks efficiency.
  • the SIM Service 14 monitors the component quantity levels on the machines 11 versus the component quantity needed for the product being produced and indicates to the user via the SIM Assistant 12 what components should be replenished first. If there is a machine error that stops the machine, the operator is notified via the Assistant 12 to attend to this error before doing anything else. A record is made as to how long the operator takes to fix the event. Via the system 10, the operator is informed as to whether there is enough material near the line to replenish components that are running out.
  • Certain items on the line are moisture or temperature sensitive (e.g., environmentally sensitive) and need to be attended to in a timely manner. For example, solder paste needs to warm before use, so the operator can be informed when to take the solder paste out so there is enough time to warm.
  • moisture or temperature sensitive e.g., environmentally sensitive
  • Graphic barcode definition allows for the user to visualize barcode formats and make changes as needed.
  • the system 10 will also print new barcode labels as needed with unique IDs and updated quantities of components, for easy inventory updates when needed.
  • barcodes affixed to the different inventory items SIPLACE requires a minimal amount of time to input new inventory, and recall items currently in inventory.
  • the system 10 keeps track of feeder status, keeps track of table location, keeps track of feeder location, keeps track of component inventory, enables barcode input of inventory, and warns of upcoming issues.
  • the invention has been described with regard to component placement machines, the invention is applicable to monitoring any machine process data of a PCB assembly line.
  • the invention is applicable to monitoring process data of screen printer (e.g., regarding stencil, solder paste, etc.) or to an oven (e.g., regarding the oven profile).

Abstract

L'invention concerne un procédé de gestion des stocks d'une ligne d'assemblage de cartes à circuit imprimé, permettant d'obtenir un identificateur sur le matériau à utiliser dans la ligne d'assemblage. L'identificateur est lu par balayage au moyen d'un dispositif à main portatif avant le réglage des machines. Sur la base de cette lecture, un numéro de pièce du matériau est vérifié. Les informations sont envoyées au dispositif à main de façon qu'un utilisateur du dispositif à main soit invité à effectuer une tâche spécifique en rapport avec la ligne d'assemblage, conformément aux indications apparaissant sur le dispositif à main.
EP20070839086 2006-09-29 2007-10-01 Gestion des stocks pour la fabrication de cartes à circuit imprimé Withdrawn EP2067395A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US82760006P 2006-09-29 2006-09-29
US82774506P 2006-10-02 2006-10-02
US86210406P 2006-10-19 2006-10-19
US11/905,221 US20080078834A1 (en) 2006-09-29 2007-09-28 Inventory manager for PCB manufacturing
PCT/US2007/021058 WO2008042323A1 (fr) 2006-09-29 2007-10-01 Gestion des stocks pour la fabrication de cartes à circuit imprimé

Publications (1)

Publication Number Publication Date
EP2067395A1 true EP2067395A1 (fr) 2009-06-10

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EP20070839086 Withdrawn EP2067395A1 (fr) 2006-09-29 2007-10-01 Gestion des stocks pour la fabrication de cartes à circuit imprimé

Country Status (2)

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EP (1) EP2067395A1 (fr)
WO (1) WO2008042323A1 (fr)

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Publication number Priority date Publication date Assignee Title
JPH06302992A (ja) * 1993-04-14 1994-10-28 Toshiba Corp 部品実装機のカートリッジ構造及び部品実装機の管理システム
US6027019A (en) * 1997-09-10 2000-02-22 Kou; Yuen-Foo Michael Component feeder configuration monitoring
US7069100B2 (en) * 2000-04-20 2006-06-27 Cogiscan Inc. Automated manufacturing control system
JP2003208210A (ja) * 2002-01-16 2003-07-25 Fuji Mach Mfg Co Ltd 生産機械
US20030225547A1 (en) * 2002-05-30 2003-12-04 International Business Machines Corporation Wireless feeder verification system

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Title
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Also Published As

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