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High frequency and voltage transistor with added region for punch-through protection
US 3,404,295 A
Filed
: 11/30/1964
Issued
: 10/01/1968
Est. Priority Date
: 11/30/1964
Status: Expired due to Term
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Current Assignee
Raymond M. Warner Jr
Original Assignee
Raymond M. Warner Jr
Inventors
Warner, Raymond M. Jr.
Application Number
US04/414,525
Time in Patent Office
1,401 Days
Field of Search
US Class Current
257/583
CPC Class Codes
H01L 27/0761
Vertical bipolar transistor...
H01L 29/00
Semiconductor devices speci...
H01L 29/0623
Buried supplementary region...
H01L 29/0821
Collector regions of bipola...
Y10S 148/037
Diffusion-deposition
Y10S 148/145
Shaped junctions
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