Browse Prior Art Database

Automatic Ultrasonic Bonding Station

IP.com Disclosure Number: IPCOM000108844D
Original Publication Date: 1992-Jun-01
Included in the Prior Art Database: 2005-Mar-23
Document File: 5 page(s) / 131K

Publishing Venue

IBM

Related People

Jordan, SR: AUTHOR [+3]

Abstract

This article describes an automatic ultrasonic bonding station which decreases the bonding time for bonding head suspension assembly (HSA) wire leads to a flexible substrate.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 57% of the total text.

Automatic Ultrasonic Bonding Station

       This article describes an automatic ultrasonic bonding
station which decreases the bonding time for bonding head suspension
assembly (HSA) wire leads to a flexible substrate.

      Conventionally, this bonding operation is performed manually.
The automatic bonding station disclosed herein is shown in the
drawings.  Fig. 1 is a front elevation view, Fig. 2 is a side view,
and Fig. 3 is a top view.  Figs 4a and 4b are top and side
views, respectively, of the actuator assembly.

      The major subassemblies are the conveyor 1, the pallet
positioner 2, the flag locator 3, the bonder 4 and the vision system
5.  The actuator assembly, shown in Figs. 4a and 4b, is mounted on a
pallet (not shown) and transported into the station by the conveyor
1.  When the pallet moves into position on the conveyor 1, it is
pneumatically clamped by the pallet positioner 2.

      A set of four wire leads 6 on eight (bottom) HSAs 7 are held
in the desired orientation by a plastic flag 8.  When the HSA 7 is
attached to the actuator assembly, the wire leads 6 are positioned at
the approximate desired location over the bonding pads on the
flexcable substrate 9.  Moreover, the flag 8 provides a slotted hole
10 with which the flag 8 can be engaged and moved to fine adjust the
wires to the desired positions.

      After the pallet is pneumatically clamped by the pallet
positioner 2, the flag locator 3 engages all eight flags by dro...