US 11,742,257 B2
Apparatus and methods for processing exfoliated graphite materials
John Kenna, Surrey (CA)
Assigned to 0908905 B.C. Ltd., Delta (CA)
Filed by 0908905 B.C. Ltd., Surrey (CA)
Filed on Dec. 18, 2018, as Appl. No. 16/223,417.
Application 16/223,417 is a continuation of application No. 15/630,256, filed on Jun. 22, 2017, granted, now 10,186,472.
Application 15/630,256 is a continuation of application No. 14/583,402, filed on Dec. 26, 2014, granted, now 9,700,968, issued on Jul. 11, 2017.
Claims priority of provisional application 62/035,210, filed on Aug. 8, 2014.
Claims priority of provisional application 61/921,042, filed on Dec. 26, 2013.
Prior Publication US 2019/0122952 A1, Apr. 25, 2019
Int. Cl. F28F 3/02 (2006.01); F28F 21/02 (2006.01); H01L 23/373 (2006.01); B23P 15/26 (2006.01); H05K 7/20 (2006.01); H01L 23/367 (2006.01); H01L 21/48 (2006.01); F28F 1/14 (2006.01)
CPC H01L 23/3733 (2013.01) [B23P 15/26 (2013.01); F28F 1/14 (2013.01); F28F 3/02 (2013.01); F28F 21/02 (2013.01); H01L 21/4871 (2013.01); H01L 23/3672 (2013.01); H01L 23/373 (2013.01); H05K 7/2039 (2013.01); H05K 7/20472 (2013.01); B23P 2700/10 (2013.01); H01L 2924/0002 (2013.01); Y10T 29/4935 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A method for processing a flexible graphite sheet material, said method comprising:
performing a patterning step, said patterning step comprising embossing said flexible graphite sheet material with a first pattern on a first major surface thereof, to produce a patterned flexible graphite sheet material; and
performing a simultaneous compression and embossing step, said simultaneous compression and embossing step comprising compressing said patterned flexible graphite sheet material and simultaneously embossing said first major surface of said patterned flexible graphite sheet material with first surface features to produce a densified flexible graphite sheet material having said first surface features on said first major surface thereof,
wherein said first pattern facilitates expulsion of gas from said patterned flexible graphite sheet material during said simultaneous compression and embossing step.
 
20. A method for laminating a first piece of flexible graphite sheet material to a second piece of flexible graphite sheet material, said method comprising:
performing a patterning step, said patterning step comprising embossing said first piece of flexible graphite sheet material with a first pattern on a first major surface thereof to produce a first piece of patterned flexible graphite sheet material, and embossing said second piece of flexible graphite sheet material with a second pattern on a first major surface thereof, to produce a second piece of patterned flexible graphite sheet material; and
performing a lamination step, said lamination step comprising stacking said first and second pieces of patterned flexible graphite sheet material, with said first major surface of said first piece of patterned flexible graphite sheet material in contact with said first major surface of said second piece of patterned flexible graphite sheet material, and compressing said stacked first and second pieces of patterned flexible graphite sheet material to laminate them together.