FR2479563A1 - Locking stirrup section for integrated circuit memory - has internal width equal to that of support and lateral sections with internal rim for contact under support to provide vibration protection - Google Patents
Locking stirrup section for integrated circuit memory - has internal width equal to that of support and lateral sections with internal rim for contact under support to provide vibration protection Download PDFInfo
- Publication number
- FR2479563A1 FR2479563A1 FR8007255A FR8007255A FR2479563A1 FR 2479563 A1 FR2479563 A1 FR 2479563A1 FR 8007255 A FR8007255 A FR 8007255A FR 8007255 A FR8007255 A FR 8007255A FR 2479563 A1 FR2479563 A1 FR 2479563A1
- Authority
- FR
- France
- Prior art keywords
- support
- internal
- plate
- integrated circuit
- memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/10—Programming or data input circuits
- G11C16/18—Circuits for erasing optically
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
- H05K7/10—Plug-in assemblages of components, e.g. IC sockets
- H05K7/1015—Plug-in assemblages of components, e.g. IC sockets having exterior leads
- H05K7/103—Plug-in assemblages of components, e.g. IC sockets having exterior leads co-operating by sliding, e.g. DIP carriers
Abstract
Description
ETRIER DE VERROUILLAGE POUR CIRCUIT INTEGRE. LOCKING CALIPER FOR INTEGRATED CIRCUIT.
Les circuits intégrés sont logés dans une plaque en matière isolante qui est munie d'un certain nombre de pattes de connexion et sur laquelle est éventuellement fixée une mémoire. Cette plaque repose sur un support muni de douilles dans lesquelles on enfile les pattes et qui sont prolongées par des plots de connexion. The integrated circuits are housed in an insulating material plate which is provided with a certain number of connection tabs and on which a memory is optionally fixed. This plate rests on a support provided with sockets in which the tabs are threaded and which are extended by connection pads.
Lorsque le support est porté par un objet soumis a des vibrations, il peut arriver que la plaque en matière céramique se sépare de son support. Par ailleurs, les informations contenues dans la mémoire s'effacent si celle-ci est soumise è un rayonnement ultra-violet, par exemple a celui émis par le soleil, ou à un champ magnétique, par exemple celui du a un tournevis aimanté. When the support is carried by an object subjected to vibrations, it may happen that the ceramic plate separates from its support. Furthermore, the information contained in the memory is erased if it is subjected to ultraviolet radiation, for example that emitted by the sun, or to a magnetic field, for example that of a magnetic screwdriver.
Pour empêcher l'influence d'un rayonnement ultra-violet, on peut fixer un morceau de matière adhésive opaque sur la mémoire; mais ce morceau de matière adhésive risque de se décoller.To prevent the influence of ultraviolet radiation, one can fix a piece of opaque adhesive material on the memory; but this piece of adhesive material may come off.
La présente invention a pour objet un étrier propre à verrouiller un circuit intégré sur son support et à protéger la mémoire. The subject of the present invention is a clip suitable for locking an integrated circuit on its support and for protecting the memory.
L'étrier selon l'invention est caractérisé en ce qu'il présente une largeur interne sensiblement égale à la largeur externe du support, et en ce que chacune de ses branches latérales comporte, à sa partie inférieure, un rebord interne destiné à prendre appui sous le support, et, au voisinage du fond de l'étrier, des pattes ou une languette internes minces destinées à venir presser sur la plaque ou sur les pattes de connexion. The stirrup according to the invention is characterized in that it has an internal width substantially equal to the external width of the support, and in that each of its lateral branches has, at its lower part, an internal rim intended to bear under the support, and, in the vicinity of the bottom of the stirrup, of the legs or a thin internal tab intended to come to press on the plate or on the connection legs.
Cet étrier maintien efficacement le circuit intégré sur son support de sorte que les vibrations auxquelles celui-ci peut être soumis sont sans effets. Les pattes ou languettes étant minces présentent une certaine élasticité de sorte qu'un même étrier peut être utilisé avec des circuits intégrés de hauteur quelque peu différente. Il existe, entre le fond de l'étrier et la face supérieure de la plaque, un certain espace qui permet à l'air de circuler et ainsi de refroidir le circuit intégré. Quand ce dernier comporte une mémoire, il suffit de donner à l'étrier une longueur au moins égale à celle de la mémoire pour que celleci soit efficacement protégée. This bracket effectively maintains the integrated circuit on its support so that the vibrations to which the latter may be subjected have no effect. The tabs or tongues being thin have a certain elasticity so that the same bracket can be used with integrated circuits of somewhat different height. There is, between the bottom of the caliper and the upper face of the plate, a certain space which allows the air to circulate and thus to cool the integrated circuit. When the latter has a memory, it suffices to give the stirrup a length at least equal to that of the memory for it to be effectively protected.
L'extrémité du rebord est, de préférence extérieurement biseautée de manière à former rampe. Celle-ci facilite la mise en place de l'étrier qui peut venir s'encliqueter sur le support. The end of the rim is preferably externally bevelled so as to form a ramp. This facilitates the installation of the stirrup which can snap onto the support.
L'un au moins des rebords peut comporter en un point intermédiaire de sa longueur une saillie interne qui s'introduit entre deux plots de connexion adjacents. Cette saillie empêche un déplacement transversal de l'étrier par rapport au support et lui interdit tout déplacement lors de vibrations latérales, de chocs ou de secousses. At least one of the flanges may comprise at an intermediate point of its length an internal projection which is introduced between two adjacent connection pads. This projection prevents transverse movement of the stirrup relative to the support and prevents it from moving during lateral vibrations, shocks or jolts.
On a décrit ci-après, à titre d'exemples non limitatifs, des modes de réalisation de l'étrier selon l'invention, avec référence aux dessins annexés dans lesquels
La Figure 1 est une vue en# perspective éclatée montrant un circuit intégré, son support et l'étrier, dans un premier mode de réalisation;
La Figure 2 est une vue en perspective de l'ensemble monté;
La Figure 3 et 4 sont des vues semblables respectivement aux Figures 1 et 2 d'un second mode de réalisation,
La Figure 5 est une vue en bout d'une variante.Embodiments of the stirrup according to the invention have been described below, by way of nonlimiting examples, with reference to the appended drawings in which
Figure 1 is an exploded perspective view # showing an integrated circuit, its support and the bracket, in a first embodiment;
Figure 2 is a perspective view of the mounted assembly;
Figure 3 and 4 are views similar to Figures 1 and 2 respectively of a second embodiment,
Figure 5 is an end view of a variant.
A la Figure 1, on voit un circuit intégré logé dans une plaque 1, en matière isolante, par exemple en céramique ou en matière plastique, qui est munie de pattes de connexion 2 et sur laquelle est prévue une mémoire 3. Cette plaque 1 est montée sur un support 4 muni de douilles 5 dans lesquelles on enfile les pattes 2 et qui sont chacune solidaires d'un plot de connexion 6. In Figure 1, an integrated circuit is seen housed in a plate 1, made of insulating material, for example ceramic or plastic, which is provided with connection lugs 2 and on which a memory 3 is provided. This plate 1 is mounted on a support 4 provided with sockets 5 in which the tabs 2 are threaded and which are each secured to a connection pad 6.
La plaque 1 est maintenue sur le support 4 par un étrier 7 dont la largeur interne est sensiblement égale à la largeur externe de ce support; sa longueur est au moins égale à celle de la mémoire 3. Chacune des branches latérales de cet étrier comporte à sa partie inférieure, un rebord interne 8 dont l'extrémité est extérieurement biseautée, comme indiqué en 8a, et qui peut venir prendre appui sous le support 4; cette branche latérale fait, par ailleurs, corps avec une languette interne 9 propre à venir presser sur la plaque 1. The plate 1 is held on the support 4 by a bracket 7 whose internal width is substantially equal to the external width of this support; its length is at least equal to that of the memory 3. Each of the lateral branches of this stirrup comprises at its lower part, an internal rim 8 the end of which is externally bevelled, as indicated in 8a, and which can come to bear under support 4; this lateral branch also forms a body with an internal tongue 9 suitable for pressing on the plate 1.
Pour mettre en place l'étrier 7, il suffit de l'appliquer sur le support 4 après mise en place de la plaquette 1, et de presser sur lui. Les extrémités biseautées 8a des branches latérales de l'étrier forment rampes en glissant sur les arêtes de support. Les branches latérales s'écartent pour laisser passer le support, puis les rebords 8 viennent s'appliquer sous ce dernier; en même temps, les languettes 9 viennent presser sur la plaque 1. To set up the stirrup 7, it suffices to apply it to the support 4 after fitting the wafer 1, and to press on it. The bevelled ends 8a of the lateral branches of the stirrup form ramps by sliding on the support edges. The lateral branches move apart to allow the support to pass, then the flanges 8 are applied under the latter; at the same time, the tongues 9 come to press on the plate 1.
La plaque 1 est ainsi verrouillée sur le support 4 et ne peut plus se séparer intempestivement de celui-ci. La mémoire 3 est masquée par l'étrier et n'est donc plus soumise à l'influence du rayonnement ultra-violet solaire. Si la plaque 1 ou le support 4 ont une épaisseur un peu supérieure à celle prévue, les languettes 9 se déforment élastiquement de sorte que le verrouillage de la plaque sur le support peut néanmoins être obtenu. Un certain espace existe entre la face intérieure de l'étrier et la face supé- rieure de la plaque 1, ce qui permet à l'air de circuler pour refroidir cette dernière. The plate 1 is thus locked on the support 4 and can no longer inadvertently separate from it. Memory 3 is masked by the stirrup and is therefore no longer subject to the influence of solar ultraviolet radiation. If the plate 1 or the support 4 have a thickness slightly greater than that provided, the tongues 9 deform elastically so that the locking of the plate on the support can nevertheless be obtained. A certain space exists between the interior face of the stirrup and the upper face of the plate 1, which allows the air to circulate to cool the latter.
Dans l'exemple représenté, chacun des rebords 8 comporte une saillie intérieure 10 en un point intermédiaire de sa longueur,
Lorsque l'étrier est en place, ces saillies s introduisent entre des plots 6 adjacents, ce qui empêche un déplacement transversal du support.In the example shown, each of the flanges 8 has an internal projection 10 at an intermediate point of its length,
When the stirrup is in place, these projections are introduced between adjacent studs 6, which prevents transverse displacement of the support.
Le mode de réalisation des Figures 3 et 4 est semblable dans ses grandes lignes à celui qui vient d'être décrit. Mais le support 1' est plus étroit et plus épais et les pattes de connexion 2', au lieu de s'étendre sur toute leur longueur parallèlement aux faces latérales du support, présentent une partie 2'a qui est perpendiculaire à ces faces latérales. Dans ce cas, les languettes 9 prennent appui sur les parties 2'a des pattes. The embodiment of Figures 3 and 4 is broadly similar to that just described. But the support 1 'is narrower and thicker and the connection lugs 2', instead of extending over their entire length parallel to the lateral faces of the support, have a part 2'a which is perpendicular to these lateral faces. In this case, the tongues 9 bear on the parts 2 ′ of the tabs.
Dans la variante de la Figure 5, chacune des languettes 9 comporte, à son extrémité, sur sa face interne, un bourrelet arron di 9a par lequel elle prend appui sur la plaque 1. Ce bourrelet facilite le maintien de la plaque par les languettes lorsque cette plaque a une hauteur plus grande que celle pour laquelle les languettes sont parallèles au fond de l'étrier; en effet, les arêtes supérieures de la plaque ne peuvent venir au contact des languettes. In the variant of FIG. 5, each of the tongues 9 comprises, at its end, on its internal face, an arron bead di 9a by which it bears on the plate 1. This bead facilitates the maintenance of the plate by the tongues when this plate has a height greater than that for which the tongues are parallel to the bottom of the stirrup; in fact, the upper edges of the plate cannot come into contact with the tongues.
Il va de soi que la présente inventinn ne doit pas être considérée comme limitée aux modes de réalisation décrits et représentés, mais en couvre, au contraire, toutes les variantes. Clest ainsi, par exemple, que chacune des languettes 9 pourrait être remplacée par deux ou plusieurs pattes indépendantes. It goes without saying that the present invention should not be considered as limited to the embodiments described and shown, but on the contrary covers all variants thereof. It is thus, for example, that each of the tongues 9 could be replaced by two or more independent legs.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8007255A FR2479563A1 (en) | 1980-03-26 | 1980-03-26 | Locking stirrup section for integrated circuit memory - has internal width equal to that of support and lateral sections with internal rim for contact under support to provide vibration protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8007255A FR2479563A1 (en) | 1980-03-26 | 1980-03-26 | Locking stirrup section for integrated circuit memory - has internal width equal to that of support and lateral sections with internal rim for contact under support to provide vibration protection |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2479563A1 true FR2479563A1 (en) | 1981-10-02 |
FR2479563B1 FR2479563B1 (en) | 1984-05-25 |
Family
ID=9240361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8007255A Granted FR2479563A1 (en) | 1980-03-26 | 1980-03-26 | Locking stirrup section for integrated circuit memory - has internal width equal to that of support and lateral sections with internal rim for contact under support to provide vibration protection |
Country Status (1)
Country | Link |
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FR (1) | FR2479563A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0101092A2 (en) * | 1982-08-16 | 1984-02-22 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | Data entry and/or indication device for electrical apparatuses |
WO1984002613A1 (en) * | 1982-12-20 | 1984-07-05 | Motorola Inc | Integrated circuit carrier and assembly |
DE3701310A1 (en) * | 1987-01-17 | 1988-07-28 | Bodenseewerk Geraetetech | Contact-making device for making contact with surface-mounted integrated circuits |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2032402A1 (en) * | 1968-11-29 | 1971-01-21 | Redpoint Ltd Swindon, Wiltshire (Großbritannien) | Cooling device for semiconductor elements |
FR2271669A1 (en) * | 1974-05-15 | 1975-12-12 | Itt | Integrated circuit mounting box - has ridges in lid holding circuit leads against heads of terminals |
GB2021878A (en) * | 1978-05-22 | 1979-12-05 | Minnesota Mining & Mfg | Electrical connectors |
-
1980
- 1980-03-26 FR FR8007255A patent/FR2479563A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2032402A1 (en) * | 1968-11-29 | 1971-01-21 | Redpoint Ltd Swindon, Wiltshire (Großbritannien) | Cooling device for semiconductor elements |
FR2271669A1 (en) * | 1974-05-15 | 1975-12-12 | Itt | Integrated circuit mounting box - has ridges in lid holding circuit leads against heads of terminals |
GB2021878A (en) * | 1978-05-22 | 1979-12-05 | Minnesota Mining & Mfg | Electrical connectors |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0101092A2 (en) * | 1982-08-16 | 1984-02-22 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | Data entry and/or indication device for electrical apparatuses |
EP0101092A3 (en) * | 1982-08-16 | 1984-12-27 | Nixdorf Computer Aktiengesellschaft | Data entry and/or indication device for electrical apparatuses |
WO1984002613A1 (en) * | 1982-12-20 | 1984-07-05 | Motorola Inc | Integrated circuit carrier and assembly |
DE3701310A1 (en) * | 1987-01-17 | 1988-07-28 | Bodenseewerk Geraetetech | Contact-making device for making contact with surface-mounted integrated circuits |
Also Published As
Publication number | Publication date |
---|---|
FR2479563B1 (en) | 1984-05-25 |
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Date | Code | Title | Description |
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ST | Notification of lapse |