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EP0150365A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Semiconductor component with contact hole

Assignee: Siemens AG
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Filing: 1984-12-10
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Granted: —
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Expires: 2004-12-10
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Abstract

Abstract Translated from German Bei Leistungs-MOSFET müssen die Sourcezone (5) und die Kanalzone (4) durch einen gemeinsamen Kontakt (15) kontaktiert werden. Besteht das Kontaktmaterial aus Aluminium und ist die Kanalzone (4) n-leitend (p-Kanal-MOSFET), so wird ein oberflächlicher Bereich (8) der Kanalzone (4) durch eine in der darüberliegenden Sourcezone (5) angebrachte Öffnung (6) zusätzlich mit einer Dosis von ≥ 5· 10" Atomen cm- 2 n-dotiert. Der Aluminiumkontakt (15) kontaktiert die Kanalzone (4) am genannten Bereich (8), dadurch entsteht ein rein ohmscher Kontakt zur Kanalzone. In the case of power MOSFETs, the source zone (5) and the channel zone (4) must be contacted by a common contact (15). If the contact material consists of aluminum and the channel zone (4) is n-conductive (p-channel MOSFET), a surface area (8) of the channel zone (4) is opened through an opening (6) in the source zone (5) above it. additionally with a dose of ≥ 5 · 10 "atoms cm- 2 n-doped. The aluminum contact (15) makes contact with the channel zone (4) at the named area (8), this creates a purely ohmic contact with the channel zone.

Inventors

  • 👤 Günther Dr. Dipl.-Phys. Franz

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 15:33
CPC Classifications
H; H10; H10D; H10D30/00; H10D30/60; H10D30/64; H10D30/66; H10D62/00; H10D62/10; H10D62/17; H10D62/393; H10D64/00; H10D64/01; H10D64/011; H10D64/0111; H10D64/20; H10D64/23; H10D64/251; H10D64/252; H10D64/2527; H10D64/256

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