Package codes include information on the fab.

Example package label:

(X) XILINX
XC9536XL
TQ144AWN0120
A1256088A
7C

1. Logo may be omitted on some devices
2. Full base part number not including package or speed grade
3. Multiple pieces of information on this line
   1. Package code consisting of type prefix and pin count (ex: TQ144); a “G” at the end of the type prefix indicates Pb-free
   2. Die revision letter (ex: A)
   3. Fab code (ex: W)
   4. Process within fab (ex: N)
   5. JEDEC standard date code (ex: 0120 = 2001 week 20)
4. Lot number
5. Speed / temperature grade

Product	Technology	Fab	Code	References
XC2000	720 nm	Seiko	Unknown	IBIS in cd01_X1_3_7_NTALLI9/xbbs/userware/ibis/xc2000.zip http://forums.xilinx.com/xlnx/attachments/xlnx/Xcell/200/1/Fabless%20Book%20Chapter%20FINAL.pdf
XC3000 XC3000A XC3000L	800 nm 2-metal 650nm 2-metal 600nm 2-metal	800nm is Seiko 650nm is Yamaha 600nm is Seiko Epson	?J	http://www.xilinx.com/support/documentation/customer_notices/pcn96001.pdf http://www.xilinx.com/support/documentation/customer_notices/pcn95002a.pdf
XC4000	800 nm 2-metal 650nm 2-metal 600 nm 2-metal	800nm is Seiko 650nm is Yamaha 600nm is Seiko		IBIS in cd01_X1_3_7_NTALLI9/xbbs/userware/ibis/xc4kel.zip http://www.xilinx.com/support/documentation/customer_notices/pcn95002.pdf PCN96004, PCN95002
XC4000E	600 nm	Unknown	Unknown	IBIS in cd01_X1_3_7_NTALLI9/xbbs/userware/ibis/xc4kel.zip
XC4000L	600 nm	Unknown	Unknown	IBIS in cd01_X1_3_7_NTALLI9/xbbs/userware/ibis/xc4kel.zip
XC4000XL	350 nm 250nm	UMC Seiko	KP	http://smithsonianchips.si.edu/ice/cd/9709_553.pdf cd01__X1_3_7_NTALLI9/xbbs/userware/ibis/xc4kxl.zip PCN99002
XC4000EX	500 nm	Unknown	Unknown	http://smithsonianchips.si.edu/ice/cd/9706_544.pdf \\IBIS in cd01_X1_3_7_NTALLI9/xbbs/userware/ibis/xc4kex.zip
XC5000	600 nm 3-metal 500nm 3-metal	Seiko	Unknown ?M	IBIS in cd01_X1_3_7_NTALLI9/xbbs/userware/ibis/xc5000.zip http://www.xilinx.com/support/documentation/customer_notices/pcn96011.pdf
Virtex	250nm 5-metal 220nm 6-metal 180nm 6-metal	Unknown	Unknown	http://www.xilinx.com/support/documentation/customer_notices/pcn2000-08.pdf
Virtex-E	250nm 180nm 150nm	UMC	Unknown	PCN2002-07
Virtex-QPro	220nm 5-metal epi	Unknown	Unknown	DS028 Device is rad-hard
Spartan	350 nm
Spartan-XL
Spartan-2	250nm 5-metal 220nm (poly) + 180nm (M1) 6-metal hybrid	UMC	Unknown FS	http://www.xilinx.com/support/documentation/customer_notices/pcn2001-08.pdf
Spartan-2E	220 nm 180nm 150nm	UMC	Unknown	PCN2002-05
Virtex-2	150nm 130nm 8-metal	130nm is IBM and UMC (dual tracked). 150 is at least UMC and possibly IBM too.	Unknown	WP164 page 4 http://www.xilinx.com/prs_rls/partners/02189umc.htm http://www.xilinx.com/support/documentation/customer_notices/pcn2002-06.pdf (mentions 8“ and 12” wafers)
Virtex-2Pro	150nm 130nm	Unknown	Unknown
Virtex-4	90 nm 10-metal	IBM, UMC, and Toshiba	Unknown	http://www.xilinx.com/prs_rls/xil_corp/033790nm_chips.html http://www.xilinx.com/prs_rls/partners/02189umc.htm UG500 (also mentions triple oxide and 300mm wafers) http://www.xilinx.com/support/documentation/customer_notices/xcn05005.pdf
Spartan-3	90 nm 8-metal	IBM and UMC (dual track)	Unknown	UG500 page 24. Also mentions use of 300mm wafers.
Spartan-3L	90 nm 8-metal	IBM and UMC (dual track)	Unknown
Spartan-3E	90 nm 8-metal	IBM and UMC (dual track)	Unknown
Spartan-3A	90 nm 8-metal	IBM UMC (8“ wafer) UMC (12” wafer)	F? GQ	XCN05009 Top layer is Al, rest are Cu
Spartan-3AN	90 nm 8-metal (FPGA) 130 nm shrunk to 110 nm (flash)	IBM and UMC (dual track) for FPGA die. X-Fab (130 nm) and UMC (110 nm) for flash die.	Unknown	Stacked-die (?) flash is “similar to” Atmel DataFlash http://www.xilinx.com/support/documentation/customer_notices/xcn14003.pdf XC3S50AN flash doubled in size during 2014 die shrink http://www.xilinx.com/support/answers/59572.htm
Virtex-5	65 nm 12-metal	Toshiba and UMC (dual track)	Unknown	http://www.xilinx.com/prs_rls/2006/xil_corp/0630_65nm.htm http://www.electronicsweekly.com/Articles/08/11/2006/40107/Chipworks-completes-stripdown-of-Xilinx-Virtex-5.htm Triple oxide 11 Cu + 1 Al
Spartan-6	45 nm 9-metal	Samsung	IV	http://www.azonano.com/news.aspx?newsID=9721 http://chipworks.force.com/catalog/ProductDetails?sku=XIL-XC6SLX16&viewState=DetailView All Cu (?)
Virtex-6	40 nm	Unknown	Unknown
Artix-7	28 nm HPL	TSMC	CX	HKMG
Kintex-7	28 nm 11-metal HPL	TSMC	Unknown	HKMG http://www.chipworks.com/blog/technologyblog/2012/12/11/a-review-of-tsmc-28-nm-process-technology/ http://chipworksrealchips.blogspot.com/2011/07/tsmc-hkmg-is-out-there.html
Virtex-7	28 nm HPL + 65nm	TSMC	Unknown	Logic die is 28nm HKMG, interposer die in 2.5D devices is 65nm
8 series	20nm HPM	TSMC	Unknown	http://www.xilinx.com/about/generation-ahead-20nm/index.htm Electronics Weekly

cd01_X1_3_7_NTALLI9: XACTstep M1.3 core technology CD

Rumor has it that Xilinx reuses the dies on multiple packages labeled under different products by blowing fuses. Notwithstanding that every die has a unique image, Xilinx clearly marks them with internal numbers. These are the known die markings. The following chart assumes that the same part marking is the same die in different packages unless we find otherwise.

Die	Devices	Notes
SLA919S	XC4413
X1D70	XC7A35T rev A
X2063	XC2064-70
X2122	XC3090-70	Multiple markings
X2142	XC2018
X2310	XC3090-70 (multiple markings)
X2530	XC3020-70
X3140	XC73108
X3440	XC4010D-5
X3420	XC9536 rev A	Obtained photos from Smithsonian listing, but no full photos yet
X4300	XC9572 rev A
X4610	XC4005E rev C
X4720	XC3042A rev B
X4740	XC4028XL rev C
X4810	XC4006E rev C
X5110	XC95216 rev B
X5240	XC4020E rev C
X5410	XQVR300	Obtained die ID from failure analysis, but no full photos yet
X5550	XC3064A rev B
X5571	XC4036EX rev ??	Obtained photos from Smithsonian listing, but no full photos yet
X5640	XCS20XL rev A
X5660	XCS40XL rev A
X5830	XCS20 rev C
X5840	XC2S50 rev A
X5850	Believed to be XC2S (missing package shot). TODO: compare with XC2S50 to determine size
X6090	XC95108 rev A
X6770	XCR3064XL rev D
X6820	17S50ASC	(M) 2000
X7150	XC2V80 rev A	Obtained die ID from Chipworks listing, but no full photos yet
X7410	XC2C256 rev C
X7440	XC2C128 rev B
X8021	XC3S1000 rev E
X8240	XC3S50 rev C	Obtained die ID from Chipworks listing, but no full photos yet
X8370	XC2C32A rev A
X8380	XC2C64A rev A
X8400	XC9536XL	Die rev unknown, probably A
X8410	XC9572XL rev A
X8420	XC95144XL rev A
X8701	XC3S50A rev A XC3S50AN rev A
X8721	XC3S400A
X8810	XC5VLX50 rev A (ES)	Obtained die ID from Chipworks listing, but no full photos yet
X8910	XC5VLX50 rev A (ES)	Obtained die ID from Chipworks listing, but no full photos yet
X9000	XC5VLX50	Obtained die ID from Chipworks listing, but no full photos yet
X9470	XC6VCX75T	Obtained die ID from Chipworks listing, but no full photos yet
X9591	XC6SLX16	Obtained die ID from Chipworks listing, but no full photos yet
X9592	XC6SLX16	Obtained die ID from Chipworks listing, but no full photos yet
X9610	XC6SLX4 rev B
X9640	XC6SLX100 rev A
X9770	XC6SLX75 / 75T rev ??
X9810	XC7K325T	Obtained die ID from Chipworks listing, but no full photos yet
	XCV400E
	XCV1000E
	XC2C512
X2CP 1-MS	XCF02	ST logo only, no Xilinx markings
Unknown	XC7A35T	Believed to be same die as XC7A50T
Unknown	XC7A50T	Believed to be same die as XC7A35T
Unknown	XC7A75T	Believed to be same die as XC7A100T
Unknown	XC7A100T	Believed to be same die as XC7A75T
Unknown	XC7A200T
X7450	XC2C384
Unknown	XC2C512
Unknown	XCF01S
Unknown	XCF04S
Unknown	XCF08P
Unknown	XCF16P
Unknown	XCF32P
Unknown	XCF128P
Unknown	Entire Spartan series
Unknown	Entire Spartan-XL series
Unknown	Entire Spartan-2E series
Unknown	XC3S50
Unknown	XC3S200
Unknown	XC3S400
Unknown	XC3S1500
Unknown	XC3S2000
Unknown	XC3S4000
Unknown	XC3S5000
Unknown	XC3S200A	Believed to be same die as XC3S200AN
Unknown	XC3S200AN	Believed to be same die as XC3S200A
Unknown	XC3S400AN	Believed to be same die as XC3S400A
Unknown	XC3S700A	Believed to be same die as XC3S700AN
Unknown	XC3S700AN	Believed to be same die as XC3S700A
Unknown	XC3S1400A	Believed to be same die as XC3S1400AN
Unknown	XC3S1400AN	Believed to be same die as XC3S1400A
Unknown	XC3SD1800A
Unknown	XC3SD3400A
Unknown	XC3S100E
Unknown	XC3S250E
Unknown	XC3S500E
Unknown	XC3S1200E
Unknown	XC3S1600E
Unknown	XC6SLX9
Unknown	XC6SLX16
Unknown	XC6SLX25	Believed to be same die as XC6SLX25T
Unknown	XC6SLX25T	Believed to be same die as XC6SLX25
Unknown	XC6SLX45	Believed to be same die as XC6SLX45T
Unknown	XC6SLX45T	Believed to be same die as XC6SLX45
Unknown	XC6SLX75T	Believed to be same die as XC6SLX75
Unknown	XC6SLX100	Believed to be same die as XC6SLX100T
Unknown	XC6SLX100T	Believed to be same die as XC6SLX100
Unknown	XC6SLX150	Believed to be same die as XC6SLX150T
Unknown	XC6SLX150T	Believed to be same die as XC6SLX150
Unknown	Entire Virtex series
Unknown	Entire Virtex-E series
Unknown	Entire Virtex-2 series
Unknown	Entire Virtex-2P series
Unknown	Entire Virtex-4 series
Unknown	Entire Virtex-5 series
Unknown	XC6VLX75T
Unknown	XC6VLX130T
Unknown	XC6VLX195T
Unknown	XC6VLX240T
Unknown	XC6VLX365T
Unknown	XC6VLX550T
Unknown	XC6VLX760
Unknown	XC6VSX315T
Unknown	XC6VSX475T
Unknown	XC6VHX250T
Unknown	XC6VHX255T
Unknown	XC6VHX380T
Unknown	XC6VHX565T
Unknown	XC7V585T
Unknown	XC7V2000T
Unknown	XC7VX330T
Unknown	XC7VX415T
Unknown	XC7VX485T
Unknown	XC7VX550T
Unknown	XC7VX690T
Unknown	XC7VX980T
Unknown	XC7VX1140T
Unknown	XC7VH580T
Unknown	XC7VH870T
Unknown	XC7Z010
Unknown	XC7Z015
Unknown	XC7Z020
Unknown	XC7Z030
Unknown	XC7Z045
Unknown	XC7Z100
Unknown	XC18V01
Unknown	XC18V02
Unknown	XC18V04
Unknown	XC18V128
Unknown	XC18V256
Unknown	XC18V512
Unknown	XC3030
Unknown	XC3042
Unknown	XC3064
Unknown	XC3020A
Unknown	XC3030A
Unknown	XC3090A
Unknown	Entire XC3000L family
Unknown	Entire XC3100 family
Unknown	Entire XC3100A family
Unknown	Entire XC3100L family
Unknown	XC4003
Unknown	XC4005
Unknown	XC4006
Unknown	XC4008
Unknown	XC4010
Unknown	XC4013
Unknown	XC4025
Unknown	XC4003E
Unknown	XC4008E
Unknown	XC4010E
Unknown	XC4013E
Unknown	XC4025E
Unknown	XC4028EX
Unknown	XC4036EX
Unknown	XC4005L
Unknown	XC4010L
Unknown	XC4013L
Unknown	XC4002XL
Unknown	XC4005XL
Unknown	XC4010XL
Unknown	XC4013XL
Unknown	XC4020XL
Unknown	XC4036XL
Unknown	XC4044XL
Unknown	XC4052XL
Unknown	XC4062XL
Unknown	XC4085XL
Unknown	XC4013XLA
Unknown	XC4020XLA
Unknown	XC4028XLA
Unknown	XC4036XLA
Unknown	XC4044XLA
Unknown	XC4052XLA
Unknown	XC4062XLA
Unknown	XC4085XLA
Unknown	XC40100XV
Unknown	XC40150XV
Unknown	XC40200XV
Unknown	XC40250XV
Unknown	XC5202
Unknown	XC5204
Unknown	XC5206
Unknown	XC5210
Unknown	XC5215
Unknown	XC95108
Unknown	XC95144
Unknown	XC95288
Unknown	XC95288XL
Unknown	XC9536XV
Unknown	XC9572XV
Unknown	XC95144XV
Unknown	XC95288XV
Unknown	Entire CoolRunner XPLA series
Unknown	Entire CoolRunner XPLA2 series
Unknown	Entire CoolRunner XPLA3 series

• Process tech: http://forums.xilinx.com/t5/PLD-Blog/Zero-Defect-Mindset/ba-p/224695
• XILINX AND UMC EXTEND LONG-TIME MANUFACTURING RELATIONSHIP TO 65NM & BELOW: http://www.umc.com/english/news/2005/20051206.asp
• XILINX AND UMC ANNOUNCE REVOLUTIONARY CPLD PROCESS ROADMAP: http://www.umc.com/english/news/2002/20020225.asp