JPS6243B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a method for managing printed circuit board printed films.

(2) Background of the Technology Printed wiring boards have traditionally been used in electronic devices such as electronic computing devices and communication devices to efficiently mount components and conduct wiring between those components. In the manufacturing process of this printed wiring board, a photolithography method is used to form a wiring pattern. This method involves depositing photoresist on top of the copper foil attached to the printed circuit board.
A printed film with a pattern drawn thereon is layered and exposed, developed, and etched to dissolve and remove unnecessary portions of the copper foil to form a wiring pattern.

(3) Conventional technology and problems Since the printing film used here requires multiple sheets to create one type of printed board,
In order to produce a wide variety of printed circuit boards, a large number of printed films are required, and their storage and removal must be managed to avoid errors. In the past, this management was completely dependent on humans. For example, the management method is to store the printing film required for one type of printed board together with a form to record the actual amount used in one storage bag, and write the lot number and number of times of printing on this form. Once the film was used a certain number of times, a request was made to make it again, and the history was also recorded and managed on this paper. However, this management method has the drawbacks of requiring manual labor and being prone to errors.

(4) Purpose of the Invention In view of the above-mentioned conventional drawbacks, it is an object of the present invention to provide a management method that requires fewer management steps and is less prone to errors.

(5) Structure of the Invention According to the present invention, the purpose is to provide a method for managing printed films using an automated warehouse equipped with a computer, which method is to identify the lot number of a production lot in which printed films rented from the automated warehouse are used. When the computer is notified of this, the computer calculates the number of times the printed film has been used based on the lot number/figure number correspondence table, and stores the lot number used for that key in the management file whose key is the figure number. A method for managing printed circuit board printed film, which is characterized by recording the number of times of use, etc., automatically managing the actual amount of use and history of use, and outputting a film re-production instruction when the number of times of use reaches a specified value. This is achieved by providing

(6) Examples of the invention Embodiments of the present invention will be described in detail below with reference to the drawings.

The figure is a diagram for explaining a method of managing a printed circuit board printing film according to the invention. In the figure, 1 is an automated warehouse, 2 is a computer, 3 is management software, 4 is memory, 5 is a management file,
Reference numeral 6 indicates a remanufacturing order, and reference numeral 7 indicates a usage history table.

To explain the method of the present invention using diagrams, first, when a terminal in the automated warehouse 1 is made to read the process card attached to each manufacturing lot, the drawing number (design of each printed circuit board) magnetically recorded on the magnetic stripe of the process card is read. From the unique number of each figure), the address of the printed film with that figure number in the warehouse is determined, and the printed film is taken out and lent to the manufacturing site. At the same time, the terminal notifies the computer 2 of the lot number (a number assigned to each production lot). The computer 2 can determine the number of times the printing film of each rented drawing number is used (usually used multiple times in the printing process) from the lot number/drawing number correspondence table stored in the memory 4 in advance. This number of uses is recorded in the management file 5 of the computer 2. The management file 5 has a figure number as a key, and the lot number used for that key, the date of use, and the total number of times of use are recorded. Then, when the cumulative number of uses reaches a specified value, a film remaking command 6 is output. Incidentally, a burned film whose cumulative number of uses has reached a specified value is used as is until a remanufactured film is produced, and is discarded after being replaced with a remanufactured film. The usage history table 7 can be obtained by outputting the contents of the management file 5 as required for complaint investigation and the like. To return the printed film to the warehouse, the address at the warehouse is specified by having the terminal read the picture number card attached to the printed film.
Return it there.

By managing the printed film as described above, actual usage and re-production can be performed automatically, and the history can also be output when necessary.

(7) Effects of the Invention As explained in detail above, the method of managing printed circuit board printing films according to the invention connects an automatic storage for printing films with a computer and manages the actual amount of film used, thereby reducing manual management man-hours. The effect of reducing costs and preventing management errors is significant.

[Brief explanation of the drawing]

The figure is a diagram for explaining a method of managing a printed circuit board printed film according to the present invention. In the drawings, 1 is an automated warehouse, 2 is a computer, 3 is management software, 4 is a memory, 5 is a management file, 6 is a reproduction command, and 7 is a usage history table.

Claims (1)

[Claims] 1. A method for managing printed films using an automatic warehouse equipped with a computer, in which when the computer is notified of the lot number of the manufacturing lot in which the printed film rented from the automated warehouse was used, the computer The number of times the printed film has been used is calculated using the number correspondence table, and the lot number and number of times used for that key are recorded in a management file whose key is the figure number, and the usage results and usage history are automatically recorded. 1. A method for managing printed circuit board printed film, which comprises: controlling the printed circuit board film according to the number of times it has been used, and outputting a film remanufacturing instruction when the number of times of use reaches a specified value.