Company Filing History:
Years Active: 1999-2005
Title: Pai-Hsiang Kao: Innovator in Semiconductor Technology
Introduction
Pai-Hsiang Kao is a prominent inventor based in Saratoga, CA (US). She has made significant contributions to the field of semiconductor technology, holding a total of 7 patents. Her work focuses on improving integrated circuit devices, which are essential components in modern electronics.
Latest Patents
One of her latest patents is for a semiconductor wafer having a bottom surface protective coating. This invention discloses a packaged integrated circuit device that includes a die with multiple electrical contacts on its first surface. A protective film is adhered directly to the back surface of the die, which is thick enough to allow laser marking without penetrating the die. The protective film is preferably formed by screen printing and has a thickness ranging from about 1.5 to 5 mils. Additionally, she has developed a method for fabricating a semiconductor wafer that includes applying a thick film over the bottom surface of the wafer substrate, which helps reduce chipping along the edges of separated dies.
Another notable patent involves metal pads for electrical probe testing on a wafer with bump interconnects. This improved integrated circuit device features both bond pads and trim pads, with protective caps formed over each trim pad. These caps act as barriers between the trim pads and solder used for solder bumps when the IC package is mounted onto a substrate. The protective caps are made from materials that are easily sputtered, such as titanium, and are applied during wafer-level processing.
Career Highlights
Pai-Hsiang Kao is currently employed at National Semiconductor Corporation, where she continues to innovate in the semiconductor industry. Her work has significantly advanced the technology used in integrated circuits, making them more efficient and reliable.
Collaborations
Throughout her career, she has collaborated with notable colleagues, including Nikhil Vishwanath Kelkar and William Jeffrey Schaefer. These collaborations have further enhanced her contributions to the field.
Conclusion
Pai-Hsiang Kao is a trailblazer in semiconductor technology, with a strong portfolio of patents that reflect her innovative spirit. Her work continues to impact the electronics industry positively, paving the way for future advancements.