HYDROPHILIC AND ZETA POTENTIAL TUNABLE CHEMICAL MECHANICAL POLISHING PADS

In one implementation, a method of forming a porous polishing pad is provided. The method comprises depositing a plurality of composite layers with a 3D printer to reach a target thickness. Depositing the plurality of composite layers comprises dispensing one or more droplets of a curable resin prec...

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Bibliographische Detailangaben
Hauptverfasser:	CHOCKALINGAM, Ashwin, PATIBANDLA, Nag B, MADHUSOODHANAN, Sudhakar, VORA, Ankit, NG, Hou T, GANAPATHIAPPAN, Sivapackia, REDFIELD, Daniel, FU, Boyi, BAJAJ, Rajeev
Format:	Patent
Sprache:	eng
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING PERFORMING OPERATIONS POLISHING SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	In one implementation, a method of forming a porous polishing pad is provided. The method comprises depositing a plurality of composite layers with a 3D printer to reach a target thickness. Depositing the plurality of composite layers comprises dispensing one or more droplets of a curable resin precursor composition onto a support. Depositing the plurality of composite layers further comprises dispensing one or more droplets of a porosity-forming composition onto the support, wherein at least one component of the porosity-forming composition is removable to form the pores in the porous polishing pad.