Reflow ball grid array assembly

A reflow ball grid array assembly, comprising:

• a first structure having a first structure surface;
• a second structure having a second structure surface;
• a plurality of reflow balls forming a reflow ball grid array operatively positioned between said first and second structure surfaces;
• and
• an array of pads on said first structure surface, at least some of said pads having non-circular elongate shapes to which corresponding ones of said balls are reflow attached and thereby at least partially conform to the non-circular elongate shapes;
• wherein the elongate shapes each have a length-to-width ratio of generally three-to-one.

A reflow ball grid array assembly, comprising:

• a first structure having a first structure surface;
• a second structure having a second structure surface;
• a plurality of reflow balls forming a reflow ball grid array operatively positioned between said first and second structure surfaces;
• and
• an array of pads on said first structure surface, at least some of said pads having non-circular elongate shapes to which corresponding ones of said balls are reflow attached and thereby at least partially conform to the non-circular elongate shapes;
• wherein the elongate shape is a rectangle with rounded ends.

A reflow ball grid array assembly, comprising:

• a first structure having a first structure surface;
• a second structure having a second structure surface;
• a plurality of reflow balls forming a reflow ball grid array operatively positioned between said first and second structure surfaces;
• a first array of pads on said first structure surface, at least some of said pads having non-circular elongate shapes to which corresponding ones of said balls are reflow attached and thereby at least partially conform to the non-circular elongate shapes;
• and
• a second array of pads on said second structure surface to which said balls are reflow attached at opposite ends thereof;
• wherein said second array of pads have similar elongate shapes and relative spacings and alignments as said first array of pads.

A reflow ball grid array assembly, comprising:

• a first structure having a first structure surface;
• a second structure having a second structure surface;
• a plurality of reflow balls forming a reflow ball grid array operatively positioned between said first and second structure surfaces;
• an array of pads on said first structure surface, at least some of said pads having non-circular elongate shapes to which corresponding ones of said balls are reflow attached and thereby at least partially conform to the non-circular elongate shapes;
• at least two of said elongate pads are adjacent one another and longitudinally aligned to provide a wide routing channel therebetween;
• and
• a plurality of spaced traces on said first structure surface and passing through said wide routing channel.

A reflow ball grid array assembly, comprising:

• a first structure having a first structure surface;
• a second structure having a second structure surface;
• a plurality of reflow balls forming a reflow ball grid array operatively positioned between said first and second structure surfaces;
• and
• an array of pads on said first structure surface, at least some of said pads having non-circular elongate shapes to which corresponding ones of said balls are reflow attached and thereby at least partially conform to the non-circular elongate shapes;
• wherein at least two of said elongate pads are adjacent one another and longitudinally aligned to provide a wide routing channel therebetween;
• wherein said elongate pads are on all sides of a perimeter of said array and each disposed perpendicular to respective said sides;
• wherein said array includes an elongate pad in each of four corners thereof;
• and
• wherein said corner elongate pads are disposed at a generally 45 degree angle at each of the corners.

A reflow ball grid array assembly, comprising:

• a first structure having a first structure surface;
• a second structure having a second structure surface;
• a plurality of reflow balls forming a reflow ball grid array operatively positioned between said first and second structure surfaces;
• and
• an array of pads on said first structure surface, at least some of said pads having non-circular elongate shapes to which corresponding ones of said balls are reflow attached and thereby at least partially conform to the non-circular elongate shapes;
• wherein at least two of said elongate pads are adjacent one another and longitudinally aligned to provide a wide routing channel therebetween;
• wherein said elongate pads are on all sides of a perimeter of said array and each disposed perpendicular to respective said sides;
• wherein said array includes an elongate pad in each of four comers thereof;
• and
• wherein adjacent ones of said corner elongate pads are disposed perpendicular to one another.

A reflow ball grid array assembly, comprising:

• a first structure having a first structure surface;
• a second structure having a second structure surface;
• a plurality of reflow balls forming a reflow ball grid array operatively positioned between said first and second structure surfaces;
• and
• an array of pads on said first structure surface, at least some of said pads having non-circular elongate shapes to which corresponding ones of said balls are reflow attached and thereby at least partially conform to the non-circular elongate shapes;
• wherein at least two of said elongate pads are adjacent one another and longitudinally aligned to provide a wide routing channel therebetween;
• wherein said elongate pads are on all sides of a perimeter of said array and each disposed perpendicular to respective said sides;
• wherein said array includes an elongate pad in each of four corners thereof.;
• and
• wherein said corner elongate pads are disposed in alternating horizontal and vertical directions.