Dr. Ho graduated from the University of Nebraska College of Medicine in 1966. He works in West Covina, CA and 1 other location and specializes in Allergy & Immunology. Dr. Ho is affiliated with Huntington Memorial Hospital.
Xiao-Yu Ding - Union City CA, US Frederick Ho - Union City CA, US Helen Ho - Union City CA, US Jacquelin Ho - Union City CA, US Sharon Liu - Hayward CA, US Pu Zhang - Beijing, CN
International Classification:
G10H 7/00
US Classification:
84609
Abstract:
Digital music systems, apparatus and techniques based on digitized music data and information to allow for a wide range of applications including digital music practice companion systems.
Controlling Removal Rate Uniformity Of An Electropolishing Process In Integrated Circuit Fabrication
Hui Wang - Fremont CA, US Afnan Muhammed - Fremont CA, US Jian Wang - Fremont CA, US Felix Gutman - San Jose CA, US Frederick Ho - San Jose CA, US
Assignee:
ACM RESEARCH INC. - FREMONT CALIFORNIA CA
International Classification:
B23H 3/00
US Classification:
205651000
Abstract:
A metal layer formed on a wafer, the wafer having a center portion and an edge portion, is electropolished by aligning a nozzle and the wafer to position the nozzle adjacent to the center portion of the wafer. The wafer is rotated. As the wafer is rotated, a stream of electrolyte is applied from the nozzle onto a portion of the metal layer adjacent to the center portion of the wafer to begin to electropolish the portion of the metal layer with a triangular polishing profile to initially expose an underlying layer underneath the metal layer at a point.