3925802 is referenced by 5 patents and cites 7 patents.

A hollow circularly cylindrical N semiconductor substrate includes a P layer disposed on its outer peripheral surface to form a PN junction in the form of a circularly cylindrical surface within the substrate. Two circularly cylindrical electrodes are fitted onto and into the substrate respectively.

Title
Semiconductor device
Application Number
05/444,312
Publication Number
3925802
Application Date
February 21, 1974
Publication Date
December 9, 1975
Inventor
Fujihira Kenji
Miyashita Kazuhisa
Kamahara Koichi
Terao Noboru
Watanabe Jinzo
Agent
Adams Bruce L
Lobato Emmanuel J
Burns Robert E
Assignee
Mitsubishi Denki Kabushiki Kaisha
IPC
H01L 29/06
H01L 23/488
H01L 23/48
H01L 23/473
H01L 23/34
H01L 29/00
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