WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1981001345) INTEGRATED CIRCUIT ALPHA RADIATION SHIELDING MEANS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001345    International Application No.:    PCT/GB1980/000180
Publication Date: 14.05.1981 International Filing Date: 27.10.1980
IPC:
H01L 21/26 (2006.01), H01L 23/556 (2006.01)
Applicants:
Inventors:
Priority Data:
7938119 02.11.1979 GB
Title (EN) INTEGRATED CIRCUIT ALPHA RADIATION SHIELDING MEANS
(FR) MOYEN DE PROTECTION D'UN CIRCUIT INTEGRE CONTRE LES RADIATIONS ALPHA
Abstract: front page image
(EN)An integrated circuit (16) is provided with shielding means (14) (20) to protect it from bombardment by alpha particles and other ionising radiation, so as to avoid errors in the functioning of the integrated circuit by the sudden introduction of electrical charge attendant upon the incidence of such radiation. The shielding means is in the form of a semiconducting layer, of the type of material which itself might be used for the fabrication of an integrated circuit, said layer being located in a close, overlapping manner relative to the fabricated area of the semiconducting lamina on which the integrated circuit, to be protected, is situated, so sandwiching the integrated circuit between two layers of material which are thick enough to prevent the through-passage of high energy alpha particles, and which, by their purity, are substantially free from any radioactive inclusions.
(FR)Circuit integre (16) avec des moyens de protection (14, 20) contre le bombardement de particules alpha et d'autres radiations ionisantes, de facon a eviter des erreurs dans le fonctionnement du circuit integre causees par l'introduction soudaine d'une charge electrique qui accompagne l'incidence d'une telle radiation. Le moyen de protection a la forme d'une couche semi-conductrice, du type de materiau qui pourrait etre utilise pour la fabrication d'un circuit integre, ladite couche etant placee dans une relation de proximite et de recouvrement par rapport a la surface de la feuille semi-conductrice sur laquelle est situe le circuit integre a proteger, enfermant ainsi le circuit a integrer entre deux couches de materiau qui sont suffisamment epaisses pour empecher le passage de particules alpha a energie elevee, et qui, a cause de leur purete, sont sensiblement exemptes de toute inclusion radioactive.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)