Two-axis vertical mount package assembly

Patent metadata

Field	Value
Publication number	US-9475694-B2
Application number	US-201313741198-A
Country	US
Kind code	B2
Filing date	Jan 14, 2013
Priority date	Jan 14, 2013
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

Vertical mount package assemblies and methods for making the same are disclosed. A method for manufacturing a vertical mount package assembly includes providing a base substrate having electrical connections for affixing to external circuitry, and providing a package having a mounting region configured to receive a device therein. Flexible electrical leads are formed between the base substrate and the package. The flexible leads can include a plurality of aligned grooves to guide bending. After forming the flexible electrical leads, the package is rotated relative to the base substrate. The aligned grooves can constrain the relative positions of the substrates during rotation, and the beveled edges of the base substrate and package can maintain a desired angular relationship (e.g., perpendicular) between the base substrate and the package after rotation.

First claim

What is claimed is:

1. A vertical mount package assembly comprising:
a base substrate having electrical connections for affixing to external circuitry;
a package having a device region configured to receive at least one device; and
a plurality of spaced apart electrical leads between the base substrate and the package, wherein the leads include aligned grooves, each groove comprising a surface recess to provide alignment between the base and the package, the grooves being aligned along a crease of the leads.

2. The vertical mount package assembly of claim 1 , wherein the package is fixed in a position substantially perpendicular to the base substrate.

3. The vertical mount package assembly of claim 2 , wherein the base substrate and the package each include beveled edges configured to mate.

4. The vertical mount package assembly of claim 2 , wherein the package is fixed with an adhesive between the base substrate and the package.

5. The vertical mount package assembly of claim 4 , wherein the adhesive comprises epoxy.

6. The vertical mount package assembly of claim 1 , further comprising a MEMS die on the device region of the package.

7. The vertical mount package assembly of claim 6 , wherein the plurality of electrical leads provide electrical communication between the MEMS die and the electrical connections of the base substrate.

8. The vertical mount package assembly of claim 6 , wherein the base substrate further comprises an integrated circuit communicating with the electrical leads and the electrical connections.

9. The vertical mount package assembly of claim 6 , wherein the MEMS die comprises at least one of: an accelerometer and a gyroscope.

10. A method of manufacturing the vertical mount package assembly of claim 1 , the method comprising:
providing the base substrate;
providing the package;
and
rotating the package relative to the base substrate, wherein the aligned grooves constrain the relative positions of the base substrate during rotation, and wherein the electrical leads maintain the connection between the base substrate and the package after rotation.

11. The vertical mount package assembly of claim 1 , wherein the electrical leads maintain the relative position of the base and the package without a bracket.

12. The vertical mount package assembly of claim 1 , wherein the electrical leads comprise exposed portions of a leadframe.

13. The vertical mount package assembly of claim 1 , wherein the aligned grooves of the electrical leads are aligned along an axis parallel to a bend of the electrical leads.

14. The vertical mount package assembly of claim 1 , wherein the recess is substantially rectangular or curved in cross-section.

15. The vertical mount package assembly of claim 1 , wherein the base and the package intersect at an angle from 45 degrees to 135 degrees.

16. The vertical mount package assembly of claim 1 , the vertical mount package assembly being configured to sense motion along two axes.

17. The vertical mount package assembly of claim 1 , wherein the base substrate comprises a second package including an integrated device die.

18. The vertical mount package assembly of claim 17 , the second package comprising a molding compound over the integrated device die.

19. The vertical mount package assembly of claim 17 , the package comprising a molding compound over the at least one device.

20. The vertical mount package assembly of claim 17 , the package comprising a cavity and a lid over the cavity, wherein the at least one device is disposed in the cavity.

21. The vertical mount package assembly of claim 17 , wherein the at least one device is electrically connected to a first lead of the electrical leads by a first bonding wire, and wherein the integrated device die is electrically connected to the first lead by a second bonding wire.

Assignees

• Analog Devices Global

Inventors

• Martizon Jr Arturo
• Goida Thomas M

Classifications

• H10W90/756

  between a chip and a stacked lead frame, conducting package substrate or heat sink · CPC title

• H10W74/10

  characterised by their shape or disposition · CPC title

• H10W74/00

  Encapsulations, e.g. protective coatings · CPC title

• H10W70/429

  being the outer leads · CPC title

• H01L2924/1461

  Electricity · mapped topic