Browse Prior Art Database

PC BOARD PROTECTIVE HANDLING FOLDER

IP.com Disclosure Number: IPCOM000006416D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2002-Jan-02
Document File: 4 page(s) / 163K

Publishing Venue

Motorola

Related People

Robert Undine: AUTHOR [+2]

Abstract

One of the major problems in specifying an in house carrying tote for finished printed circuit board assem- blies is the wide variety of shapes and sizes of the PC boards themselves. Individual containers can be designed for higher volume assemblies. For many smaller volume boards, the problems involved in designing storing and replacing a large variety of containers is difficult at best.

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MOTOROLA INC. Technical Developments Volume 15 May 1992

!

PC BOARD PROTECTIVE HANDLING FOLDER

by Robert Undine and Michael Lenzini I

  One of the major problems in specifying an in house carrying tote for finished printed circuit board assem- blies is the wide variety of shapes and sizes of the PC boards themselves. Individual containers can be designed for higher volume assemblies. For many smaller volume boards, the problems involved in designing storing and replacing a large variety of containers is difficult at best.

  The protective folder concept evolved from an analogy to OUT waveline pallet system. In this system, one common size pallet adjusts to many individual board sizes. We needed an intermediate container that could contain varied sizes but had one fixed overall dimension to tit a common sized tote.

Combine this idea with the requirements of:
1. Improved mechanical handling protection
2. Protection from ESD damage
3. Bagless handling in faraday style totes
4. Handle variable kanban lot sizes
5. Light weight, stackable and low cost

The resulting solution i! a protective handling folder.

  The concept consists of an intermediate folder that handles a wide variety of board sizes while keeping a consistent overall diiensiorf that can be stored in a com- mon size tote for trampoft. The folder (see figure 1) consists of a sheet of conddctive coated cardboard with a protective static dissipativk foam liner. This foam cush- ions the assembly during trknsport and handling to pre- vent mechanical damage. qe pc board is placed on one half of the folder, the folder closed, and then inserted into a common sized divided transport tote. This folder in conjunction with the Faraday shielding conductive tote and cover, provide p<otection from electrostatic damage.

  The wide variety of P'$ board sizes in OUT factory requires a flexible adaptable common solution. For this reason, three folder sizes h,?ve been specified. (see fig- ure 2). Two partition sizes have a...