Assembly for chip(s) with magnetic head(s) and method for making same
AssigneeCommissariat a l'Energie Atomique
InventorsJean-Baptiste Albertini, Gérard Barrois, Roger Marillat
Life of this patent
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Abstract
An assembly including a magnetic head for recording information using a chip based assembly. The assembly includes a chip mounted on a base where a printed circuit with conducting tracks underneath is passed through the base to come into contact with the chips's connection studs. Also disclosed is the process for the manufacture of chip based assemblies.
Claims7
Assembly including chip(s) with magnetic head(s), the aforesaid chip (50) having a rear edge equipped with electrical connection studs (P1, P2), the assembly also including a base (60) with an upper side (61) and a lower side (62) as well as a front edge (63) and a rear edge (64), the chip (50) being attached to the front edge (63) of the upper side (61) of the base (60), this assembly being characterized in that it also includes a printed circuit (70) with an upper side (71) and a lower side, front edge (73) and a rear edge (74) as well as an opening (80) or a notch (81), this printed circuit (70) being covered, on its lower side (72) by conducting tracks (76, 77) of which the front ends (76′, 77′) are soldered to the electrical connection studs (P1, P2) of the chip, the printed circuit (70) going under the base (60) and having its upper side (71) against the lower side (62) of the base (60) and the rear part (74) of the printed circuit (70) being attached to each other by a means of attachment, the opening (80) or notch (81) of the printed circuit being crossed by the base (60).
Process for making an assembly comprising:
- Starting with a chip with at least one magnetic head and with its rear edge equipped with electrical connection studs (P1, P2) and a base (60) having upper (61) and lower (62) sides and front (63) and rear (64) edges,
- Attaching the chip (50) to the front edge (63) of the upper side (61) of the base (60),
- Making a printed circuit (70) with upper (71) and lower (72) sides and front (73) and rear (74) edges with, on the lower side (72), conducting tracks (76,77), A notch (81) or opening (80) is made in the printed circuit (70) with dimensions sufficient for the chip-base unit (50,60) to go through it,
- Passing the chip base-unit (50,60) through the notch (81) or opening (80) in the printed circuit (70) and the electrical connection studs (P1, P2) of the chip (50) are arranged facing the ends (76′,77′) of the conducting tracks (76,77) of the printed circuit,
- Electrically connecting the electrical connection studs (P1, P2) of the chip (50) with the ends (76′,77′) of the conducting tracks (76,77) of the printed circuit (70),
- Attaching at least one part (64) of the base (60) to the printed circuit (70).
Dependencies are inferred from the claim text.