Semiconductor device capable of blocking contaminants
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 22, 1994
Issued Date -
N/A
app pub date -
Dec 8, 1992
filing date -
Aug 21, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A semiconductor device comprises a semiconductor substrate having first and second major surfaces, semiconductor elements formed on the first surface of the semiconductor substrate, and a blocking layer formed within the substrate at a given distance from the second major surface for blocking the passage of heavy metals through the semiconductor substrate.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully