Browse Prior Art Database

Enhanced Precision Timing Element (PTE) Bonding Device

IP.com Disclosure Number: IPCOM000121178D
Original Publication Date: 1991-Jul-01
Included in the Prior Art Database: 2005-Apr-03
Document File: 1 page(s) / 52K

Publishing Venue

IBM

Related People

Copeland, BA: AUTHOR [+4]

Abstract

Disclosed is a design for a fixture utilized to align and provide uniform pressure to a component which is to bonded to a substrate with an ultraviolet-cured adhesive such that the features used for alignment and pressure do not interfere with the adhesive or the adhesive curing mechanism.

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Enhanced Precision Timing Element (PTE) Bonding Device

      Disclosed is a design for a fixture utilized to align and
provide uniform pressure to a component which is to bonded to a
substrate with an ultraviolet-cured adhesive such that the features
used for alignment and pressure do not interfere with the adhesive or
the adhesive curing mechanism.

      The enhanced alignment/bonding device consists of three
parallel plates, two of which are stationary (top(1) and bottom(2)),
and a movable third middle plate (3) (Fig. 1). The three plates are
connected by means for four pins (4) located at the corners of the
plates.  The top and bottom plates have vertical positions fixed on
the pins by means of set screws.  The middle plate is allowed to ride
up and down on the pins by means of bushings (5).  A set of springs
(6) are located between the bottom and middle plate.  The middle
plate has a recess to secure the substrate (7).  The top plate
consists of a metal frame into which a quartz frame is fixed (8).
The quartz frame provides the proper location of the part to be
bonded relative to the substrate.  When the part to be bonded is
placed into the quartz frame, a portion of the part is held in place
by the frame edges.  A quartz window (9) that is slightly smaller in
dimension than the quartz frame is placed on top of the part (Fig.
2).  An axial force is applied to the quartz window.  This causes the
springs to compress and resultant force to be applied to t...