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Method for reducing die attach defects by using a foreign material blower

IP.com Disclosure Number: IPCOM000006609D
Publication Date: 2002-Jan-16
Document File: 2 page(s) / 59K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for reducing die attach defects by using a foreign material blower. Benefits include improved yield because defects are reduced.

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Method for reducing die attach defects by using a foreign material blower

Disclosed is a method for reducing die attach defects by using a foreign material blower. Benefits include improved yield because defects are reduced.

Description

              The disclosed method reduces die attach defects caused by the presence of foreign material (FM) on the die. A blower activates when foreign material is encountered. The blower is comprised of a tygon tube connector and a hose nozzle.

              To implement the method, perform the following steps:

1.   Connect the nozzle to the tygon tube.

2.   Put the hose connector at the other end of the tube.

3.   Install the blower with nozzle pointing towards the die that is to be pick-up by the pick and place.

4.   Connect the other end of the tube with the connector to the air supply.

Advantages

              The advantage of the disclosed method is that it automatically blows away any foreign materials floating on the die, reducing defects caused by FM. As a result, die attach yield improves. No conventional solution provides this benefit.

This is the foreign material hose blower pointing to the die to be pick-up that will help eliminate floating FM.

 

Fig. 1

This picture shows the bond head on the pick position.

 

Fig. 2

Disclosed anonymously