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US 7,052,936 B2Granted
Use of polybenzoxazoles (PBOS) for adhesion
AssigneeInfineon Technologies AG
InventorsAndreas Walter, Recai Sezi
Life of this patent
Estimating the term…
Abstract
The present invention describes the use of polybenzoxazoles (PBOs) for adhesively bonding articles or materials, especially components used in the semiconductor industry, such as chips and wafers, a process for adhesively bonding materials, especially chips and wafers, chip and/or wafer stacks produced by the process, and adhesive compositions which comprise the polybenzoxazoles of the formula (I).
Claims24
A process for adhesively bonding materials or components, comprising:
- a. providing polybenzoxazoles (PBOs) of formula (I):
- where a=0 or 1, b=0–100, c=0–100 and d=0 or 1, where a=d;
- X, if a and d=0, is:
- —H, alkyl, alkenyl, cycloalkenyl, aryl, aralkyl, aralkenyl, aralkynyl or heterocycloalkyl each unsubstituted or substituted;
- X, if a and d=1, is:
- hydroxy, substituted or unsubstituted alkoxy, alkenoxy, aryloxy, cycloalkenoxy, amino, alkylamino, alkenylamino, arylamino, arylalkenoxy, arylalkylamino;
- Y1 to Y4 independently of one another have the following definition:
- substituted or unsubstituted aryl, a substituted or unsubstituted polynuclear aromatic hydrocarbon compound, a substituted or unsubstituted fused ring system, or alkyl, alkenyl, alkynyl, aralkyl, aralkenyl, aralkynyl, heterocyclo or cycloalkenyl each unsubstituted or substituted;
- Z1 to Z3 independently of one another have the following definition:
- aryl, aralkyl, aralkenyl, aralkynyl, heteroaryl, a polynuclear aromatic hydrocarbon compound or a fused ring system each unsubstituted or substituted;
- b. applying the PBOs to the area or areas of the materials or components to be bonded;
- c. contacting the areas to be bonded with one another;
- d. subsequently crosslinking the PBOs;
- and
- e. adhesively bonding the materials or components through the cross-linking of step (d).
12 more elements
A process for adhesively bonding at least a first component and a second component, comprising:
- a. providing a first component and a second component;
- b. providing polybenzoxazoles (PBOs) of formula (I):
- where a=0 or 1, b=0–100, c=0–100 and d=0 or 1, where a=d;
- X, if a and d=0, is:
- —H, alkyl, alkenyl, cycloalkenyl, aryl, aralkyl, aralkenyl, aralkynyl or heterocycloalkyl each unsubstituted or substituted;
- X, if a and d=1, is:
- hydroxy, substituted or unsubstituted alkoxy, alkenoxy, aryloxy, cycloalkenoxy, amino, alkylamino, alkenylamino, arylamino, arylalkenoxy, arylalkylamino;
- Y1 to Y4 independently of one another have the following definition:
- substituted or unsubstituted aryl, a substituted or unsubstituted polynuclear aromatic hydrocarbon compound, a substituted or unsubstituted fused ring system, or alkyl, alkenyl, alkynyl, aralkyl, aralkenyl, aralkynyl, heterocyclo or cycloalkenyl each unsubstituted or substituted;
- Z1 to Z3 independently of one another have the following definition:
- aryl, aralkyl, aralkenyl, aralkynyl, heteroaryl, a polynuclear aromatic hydrocarbon compound or a fused ring system each unsubstituted or substituted;
- c. applying the PBOs to an area or areas of at least one of the first component and the second component to be bonded;
- d. contacting the areas to be bonded with one another;
- e. subsequently crosslinking the PBOs;
- and
- f. adhesively bonding the first component and the second component through the cross-linking of step (e).
13 more elements
Dependencies are inferred from the claim text.