Carrier transport and collection in fully depleted semiconductors by a combined action of the space charge field and the field due to electrode voltages

Patent · Tue Aug 18 04:00:00 EDT 1987

OSTI ID:7146561

Rehak, P; Gatti, E

A semiconductor charge transport device and method for making same are disclosed, characterized by providing a thin semiconductor wafer having rectifying junctions on its opposing major surfaces and including a small capacitance ohmic contact, in combination with bias voltage means and associated circuit means for applying a predetermined voltage to effectively deplete the wafer in regions thereof between the rectifying junctions and the ohmic contact. A charge transport device of the invention is usable as a drift chamber, a low capacitance detector, or a charge coupled device each constructed according to the methods of the invention for making such devices. Detectors constructed according to the principles of the invention are characterized by having significantly higher particle position indicating resolution than is attainable with prior art detectors, while at the same time requiring substantially fewer readout channels to realize such high resolution. 16 figs.

• DOE Contract Number: AC02-76CH00016
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): A; US 4688067
• Application Number: PPN: US 6-583553
• OSTI ID: 7146561
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000* -- Engineering-- Components
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440000 -- Instrumentation
47 OTHER INSTRUMENTATION
ELECTRIC CHARGES
FABRICATION
JUNCTIONS
MEASURING INSTRUMENTS
RADIATION DETECTORS
SEMICONDUCTOR DETECTORS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR JUNCTIONS
TRANSPORT