Abstract:
Procédé et dispositif correspondant d'assemblage d'une première plaque et d'une deuxième plaque (P1, P2) biseautées à leur périphérie, comprenant une étape d'excavation sur la partie périphérique biseautée (BIS) d'au moins une première face de la première plaque (P1) engendrant un dépôt en bordure de la zone excavée du matériau de la première plaque, et une étape de collage de la première face et d'une deuxième face de la deuxième plaque.
Abstract:
The invention relates to a microbattery comprising through-connections and to the production method thereof. The inventive microbattery comprises a support (1) having a front face (2) and a rear face (3) and first (4) and second (5) current collectors which are disposed on the front face (2) of the support (1). A stack comprising a cathode (8) and an anode (6) which are separated by an electrolyte (7) is disposed on the current collectors (4 and 5). The anode (6) and the cathode (8) are in contact with the first (4) and second (5) current collectors respectively. The aforementioned stack is covered with a protective layer (9). In addition, the microbattery comprises connections (10) which pass through the support (1) from the front face (2) to the rear face (3) thereof and which are in contact with the first (4) and second (5) current collectors. The stack preferably covers essentially all of the front face (2) of the support (1). The invention also relates to a method of producing the microbattery, which comprises: the etching of cavities in the front face (2) of the support (1), said cavities having a depth less than the thickness of the support (1); the filling of the cavities with a conductive material; and the removal of a layer of the rear face (3) from the support (1), in order to reveal the conductive material contained in the cavities.
Abstract:
The invention relates to a method for transferring at least one micrometer or millimeter sized object to a reception substrate by means of a handle. The inventive method consists in fixing a polymer handle to said object in such a way that a deformable structure consisting of the superimposed handle and object is obtainable, in preparing the surface of the object face which is opposite to the handle for the adhesion thereof to the reception substrate face, in bringing said object face into contact with said reception substrate face, adhering it thereto after the deformation at least of the handle and in removing the polymer handle.
Abstract:
The invention concerns a method for making a thin layer comprising components or circuits, characterized in that it comprises the following steps: a) forming on a glass substrate a boundary layer; b) producing, on the boundary layer, a thin layer including all or part of at least a component and/or circuit; c) eliminating or thinning the glass substrate.
Abstract:
The invention concerns a method for producing a semiconductor structure, on a semiconductor substrate whereof one surface has a topology, said method comprising the following steps: a) forming a first layer (24) in a first insulating material on said surface, b) forming a second layer in a second insulating material (28), less dense than the first insulating material, of thickness ranging between 2.5 and 3.5 p, c) planarizing the assembly.
Abstract:
The invention concerns a method for making a wafer level electronic chip scale package, the wafer comprising at least one chip and said at least one chip including input/output contact pads on one surface of the wafer called front side, the method comprising the following steps: a) forming, by means of a mold or a complex stencil, an insulating stress-relaxing layer on said front surface, said relaxation layer covering the wafer front surface with a raised part including access wells at the input/output contact pads, and elsewhere, projecting parts designed to relax the stresses, each projecting part having a stepped shape comprising at least one prominent zone and at least one zone, recessed relative to said prominent zone, designed to support an electrical bond pad; b) forming electrically conductive tracks on the relaxation layer to connect the input/output contact pads to the corresponding electrical bond pads. The invention also concerns a mould or complex stencil for making a chip scale package using said inventive method as well as the resulting package itself.