Stacked electronic component package having film-on-wire spacer
View Patent ↗A film-on-wire spacer covers an entire upper surface of a lower electronic component. Accordingly, an upper electronic component is supported above bond pads and lower bond wires of the lower electronic component. This decreases the stress on the upper electronic component, e.g., during wirebonding, and thus decreases the chance of cracking the upper electronic component. Further, the lower bond wires are enclosed in and protected by the film-on-wire spacer. Further, the film-on-wire spacer is thin resulting in a minimum height of the stacked electronic component package.
1. A stacked electronic component package comprising:
a first electronic component having a first surface, a second surface, and sides, the second surface of the first electronic component comprising bond pads;
a film-on-wire spacer coupled to and covering the second surface of the first electronic component including the bond pads, the film-on-wire spacer comprising:
an upper film adhesive comprising a first adhesive;
a dielectric spacer comprising sides; and
a lower film adhesive comprising a second adhesive different than the first adhesive, the lower film adhesive comprising sides, wherein the sides of the first electronic component, the sides of the lower film adhesive and the sides of the spacer are substantially vertical and coincident with one another; and
a second electronic component having a first surface coupled to the film-on-wire spacer.
2. The stacked electronic component package of claim 1 wherein the second electronic component is larger than the first electronic component.
3. The stacked electronic component package of claim 2 wherein the upper film adhesive covers an entire first surface of the second electronic component.
4. The stacked electronic component package of claim 1 wherein the upper film adhesive has a greater adhesiveness than the lower film adhesive.
5. The stacked electronic component package of claim 1 wherein the lower film adhesive is more compliant that the upper film adhesive.
6. The stacked electronic component package of claim 1 wherein the spacer comprises a flexible film.
7. The stacked electronic component package of claim 1 wherein the spacer comprises an organic film.
8. A stacked electronic component package comprising:
a first electronic component having a first surface, a second surface, and sides, the second surface of the first electronic component comprising bond pads;
a film-on-wire spacer coupled to and covering the second surface of the first electronic component including the bond pads, the film-on-wire spacer comprising:
an upper film adhesive;
a dielectric spacer comprising sides; and
a lower film adhesive comprising sides, wherein the sides of the first electronic component, the sides of the lower film adhesive and the sides of the spacer are substantially vertical and coincident with one another; and
lower bond wires coupled to the bond pads of the first electronic component, the lower bond wires being enclosed within and protected by the lower film adhesive; and
a second electronic component having a first surface coupled to the film-on-wire spacer.
9. The stacked electronic component package of claim 8 further comprising a substrate, the first surface of the first electronic component being coupled to a first surface of the substrate.
10. The stacked electronic component package of claim 9 wherein the substrate comprises first traces on the first surface of the substrate, the lower bond wires further being coupled to the first traces.
11. The stacked electronic component package of claim 10 wherein the second electronic component further comprises a second surface having bond pads thereon.
12. The stacked electronic component package of claim 11 further comprising upper bond wires coupling the bond pads of the second electronic component to the first traces.
13. The stacked electronic component package of claim 8 wherein the film-on-wire spacer covers the entire first surface of the second electronic component.
14. A stacked electronic component package comprising:
a substrate comprising first traces on a first surface of the substrate;
a first electronic component having a first surface, a surface, and sides, the first surface of the first electronic component being coupled to the first surface of the substrate, the second surface of the first electronic component comprising bond pads;
a film-on-wire spacer coupled to and covering the second surface of the first electronic component including the bond pads, the film-on-wire spacer comprising:
an upper film adhesive comprising a first adhesive;
a dielectric spacer comprising sides; and
a lower film adhesive comprising a second adhesive different than the first adhesive, the lower film adhesive comprising sides, wherein the sides of the first electronic component, the sides of the lower film adhesive and the sides of the spacer are substantially vertical and coincident with one another; and
lower bond wires coupled to the bond pads of the first electronic component and the first traces, the lower bond wires being enclosed within and protected by the lower film adhesive; and
a second electronic component having a first surface coupled to the film-on-wire spacer.
15. The stacked electronic component package of claim 14 wherein the second electronic component further comprises a second surface having bond pads thereon.
16. The stacked electronic component package of claim 15 further comprising upper bond wires coupling the bond pads of the second electronic component to the first traces.
17. The stacked electronic component package of claim 14 wherein the film-on-wire spacer covers the entire first surface of the second electronic component and the entire second surface of the first electronic component.
18. A stacked electronic component package comprising:
a first electronic component having a first surface, a second surface, and sides, the second surface of the first electronic component comprising bond pads;
a film-on-wire spacer coupled to and covering the second surface of the first electronic component including the bond pads, the film-on-wire spacer comprising:
an upper film adhesive comprising sides;
a dielectric spacer comprising sides; and
a lower film adhesive comprising sides;
lower bond wires coupled to the bond pads of the first electronic component, the lower bond wires being enclosed within and protected by the lower film adhesive; and
a second electronic component having a first surface coupled to the film-on-wire spacer, a second surface, and sides, wherein the sides of the first electronic component, the sides of the lower film adhesive, the sides of the spacer, the sides of the upper film adhesive and the sides of the second electronic component are substantially vertical and coincident with one another.
19. The stacked electronic component package of claim 18 further comprising a substrate, the first surface of the first electronic component being coupled to a first surface of the substrate, wherein the substrate comprises first traces on the first surface of the substrate, the lower bond wires further being coupled to the first traces.