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11 SEMI G69-0996 © SEMI 1996, 2004 APPENDIX 2 SAMPLE SIZE NOTICE : The material in this appendix is an o fficial part of SEMI G69 and was approved by full letter b allot procedures. A1-2 A1-2.1 Resul ts of adhesive st re…

SEMI G69-0996 © SEMI 1996, 2004 10

APPENDIX 1

SAMPLE OF MOLD FOR SHEAR METHOD

NOTICE: The material in this appendix is an official part of SEMI G69 and was approved by full letter ballot

procedures.

A1-1

A1-1.1 A mold to prepare samples for shear method is shown in Figure A1-1 as a sample.

Figure A1-1

Mold Sample

11 SEMI G69-0996 © SEMI 1996, 2004

APPENDIX 2

SAMPLE SIZE

NOTICE: The material in this appendix is an official part of SEMI G69 and was approved by full letter ballot

procedures.

A1-2

A1-2.1 Results of adhesive strength measurement made by some companies using the same leadframe material and

molding compound are shown in Figure A2-1. The figures show that apparent adhesive strength decreases with an

increase in adhesive area due to residual stress.

A1-2.2 Sample size in this document was determined in consideration of the effect of residual stress and easiness of

handling for samples.

A1-2.3

Figure A1-2

Dependence of Measurement Results on Sample Size