US 7,608,886 B2
Systems and methods for a high density, compact memory array
Tzu-Hsuan Hsu, Chiayi (Taiwan); Ming-Hsiu Lee, Hsinchu (Taiwan); Chao-I Wu, Tainan (Taiwan); and Ming-Chang Kuo, Changhua (Taiwan)
Assigned to Macronix International Co., Ltd., (Taiwan)
Filed on Jan. 06, 2006, as Appl. No. 11/327,792.
Prior Publication US 2007/0161193 A1, Jul. 12, 2007
Int. Cl. H01L 29/792 (2006.01)
U.S. Cl. 257—324  [257/E21.679; 257/E29.309] 31 Claims
OG exemplary drawing
 
1. A memory array, comprising:
a first vertical memory cell comprising a first plurality of transistor structures;
a second vertical memory cell comprising a second plurality of transistor structures;
a joint drain region between the first and second memory cells;
a common source region between the first and the second memory cells; and
a joint body region between the first memory cell and the second memory cell,
wherein each of the first plurality of transistor structures share a first common conductive gate region wholly disposed above the common source region.