IP Library › Granted Patent US 6,638,817
Granted Patent Utility
US 6,638,817 · App. 10/022,698

Method for fabricating dram cell array not requiring a device isolation layer between cells

Inventor: Kwan-Weon Kim
Patented Case View Patent ↗
Granted: Oct 28, 2003 Filed: Dec 20, 2001
Inventor
Kwan-Weon Kim
Assignee (at issue)
Hyundai Electronics Industries Co. Ltd.

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,638,817
App. No.
10/022,698
Filed
2001-12-20
Granted
2003-10-28
Kind
B2