Patent ID: 9508731
Filing Date: 2016-11-29
CPC Classification: H01L

Claim Text:
1. An apparatus, comprising: a plurality of pillars disposed in a die, wherein the plurality of pillars comprises: a first pillar grouping having at least a first pillar electrically coupled with a first bitline and a second pillar electrically coupled with a second bitline and disposed at a pillar pitch from the first pillar along a first imaginary line that is substantially orthogonal to the first and second bitlines; and a second pillar grouping having at least a third pillar electrically coupled with a third bitline and shifted by a quarter of the pillar pitch from the first pillar along a second imaginary line that is substantially orthogonal to the bitlines, and a fourth pillar electrically coupled with a fourth bitline and disposed at the pillar pitch from the third pillar and shifted by the quarter of the pillar pitch from the second pillar along the second imaginary line, wherein the first pillar grouping further includes a fifth pillar electrically coupled with a fifth bitline, and a sixth pillar electrically coupled with a sixth bitline and disposed at the pillar pitch from the fifth pillar along a third imaginary line that is substantially orthogonal to the first and second bitlines, wherein the third imaginary line is located between the first and second imaginary lines, wherein the second pillar grouping further includes a seventh pillar electrically coupled with a seventh bitline and shifted by a quarter of the pillar pitch from the fifth pillar along a fourth imaginary line that is substantially orthogonal to the first and second bitlines, and an eighth pillar electrically coupled with an eighth bitline and disposed at the pillar pitch from the seventh pillar and shifted by the quarter of the pillar pitch from the sixth pillar along the fourth imaginary line, wherein the second imaginary line is located between the third and fourth imaginary lines, and wherein the first and second pillar groupings are coupled with a drain-side select gate (SGD) line.