摘要:
An apparatus for automatically positioning electronic die within temporary packages to enable continuity testing and the like between the die bond pads and the temporary package electrical interconnects is provided. The apparatus includes a robot having a programmable robot arm with a gripper assembly, die and lid feeder stations, a die inverter, and a plurality of cameras or image producers. The cameras take several pictures of the die and temporary packages to precisely align the die bond pads with the temporary package electrical interconnects. A predetermined assembly position is located along a conveyor that conveys a carrier between a first position, corresponding to an inlet, and a second position, corresponding to an outlet. The die, a restraining device and temporary package are assembled at the predetermined assembly position and tested for continuity therebetween. The apparatus further includes a fifth camera which locates the die at a wafer handler. The apparatus has a control mechanism including a microprocessor and associated program routines that selectively control the robot arm (i) to move the gripper assembly to the lid feeder station to pick up a lid, (ii) to move the gripper assembly along with the lid to pick up the die following photographing by the rough die camera, (iii) to move the gripper assembly along with the lid and the die to a position to be photographed by the fine die camera, and (iv) to move the lid and the die to the predetermined assembly position located along the conveyor. The method and apparatus may also be used for disassembly.
摘要:
A method and system for heat bonding a chip to a substrate by means of heat bonding material disposed there between. At least the substrate is preheated from an initial temperature to an elevated temperature below a damage temperature of the substrate. A light pulse applied to the chip momentarily increases the chip temperature to a pulsed peak temperature below a peak damage temperature of the chip. The momentarily increased pulsed peak temperature of the chip causes a flow of conducted heat from the chip to the bonding material, causing the bonding material to form a bond.
摘要:
In a non-contact IC card comprising a substrate and provided thereon at least an IC chip and an antenna coil formed by etching, a connecting terminal of the antenna coil and a connecting bump of the IC chip are interconnected in a face-down fashion via an anisotropic conductive adhesive layer, or interconnected by wire bonding.
摘要:
Procédé d'assemblage par collage direct d'un premier (I) et deuxième (II) éléments munis chacun d'une surface d'assemblage, l'une au moins des surfaces d'assemblage comprenant des portions métalliques (6, 106) en retrait entourées de matériaux diélectriques (4, 104) comportant : A) une étape de mise en contact des deux surfaces d'assemblage sans application de pression de sorte qu'un collage direct soit obtenu entre les surfaces d'assemblage, lesdits premier et deuxième ensembles (I, II) formant un empilement présentant une épaisseur donnée (e), B) une étape de traitement thermique dudit empilement, pendant lequel, les faces arrière (10, 110) des premier (I) et deuxième (II) éléments sont immobilisées de sorte qu'elles soient maintenues à distance fixe (E) comprise entre l'épaisseur donnée de l'empilement +/- 2 nm.
摘要:
A method of fabricating a wafer-level package is described. The method includes providing an active device on a semiconductor wafer (300) that has not been singulated, the active device having a plurality of bonding pads (104) exposed at an upper surface of the wafer (300). Prior to singulating the semiconductor wafer (300), a plurality of stud bumps (106,610) are formed with a wire bonding tool on the plurality of bonding pads (104,612). Thereafter, a moulding encapsulation layer (108) is applied over the semiconductor wafer (300), leaving an upper portion of each of the plurality of stud bumps (106) exposed.