In small 11.6" notes (VivoBook S200E X201E X202E and much more) ASUS uses such heatsink
it is child of some dark genius, as the only part cooling here is flat metal plane under cooler.
almost all of this notes throttle under serious load due to this.
Chinese made such replacement thing
It is heatpipe with lot of small copper fins and air passes though them (on all larger notes similar cooolers are used).
Can get this on aliexprees
It looks like you're new here. If you want to get involved, click one of these buttons!