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Browse Prior Art Database

Multi-Tray Inspection Method

IP.com Disclosure Number: IPCOM000111205D
Original Publication Date: 1994-Feb-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 4 page(s) / 85K

Publishing Venue

IBM

Related People

Benning, FP: AUTHOR [+3]

Abstract

A three-step inspection method is disclosed. Each station is set up with a microscope mounted to the station. At the first station, the top of the part is inspected; the second station, the end and sides; and the third station, the bottom of the part. All parts are inspected without touching the part.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 65% of the total text.

Multi-Tray Inspection Method

      A three-step inspection method is disclosed.  Each station is
set up with a microscope mounted to the station.  At the first
station, the top of the part is inspected; the second station, the
end and sides; and the third station, the bottom of the part.  All
parts are inspected without touching the part.

      An inspection method was invented where Head Suspension
Assemblies (HSA's) could be fully inspected without ever being
removed from the HSA ship trays.  Three step method was used to cover
all inspection parameters needed to ship quality parts.  The
following 6 figures help explain each step of the process.

      You will see the first step of the process is to place the HSA
tray into the inspection tray under a microscope and inspect for any
visual defects, as well as rework any part of the HSA as needed
(Figs. 1 and 2).  The inspection station is used to inspect the wire
harness, glue dots, and all other visible suspension defects (see
Fig. 1).  The operator is able to inspect all parts without handling
them.  Fig. 2 depicts the HSA tray which holds the suspensions and is
placed in the wire harness station as shown in Fig. 1.

      The second step is to put a cover with mirrors over the HSA
tray, then place the tray on the inspection tray under the
microscope, and inspect for any defects on the ends and sides of the
HSA (Figs. 3 and 4).  By using a mirrored cover over the HSA tray we
can inspect for defe...