Advanced Semiconductor Engineering, Inc. [ASX]
Advantest Corporation [ATE]
Aehr Test Systems [AEHR]
AIXTRON AG [AIXG]
Amistar Corporation [AMTA.PK]
Amtech Systems, Inc. [ASYS]
Applied Materials, Inc. [AMAT]
ASAT Holdings Limited [ASTTE.OB]
ASM International N.V. [ASMI]
ASML Holding N.V. [ASMLF.PK]
ATMI, Inc. [ATMI]
Aviza Technology, Inc. [AVZAQ.PK]
Axcelis Technologies, Inc. [ACLS]

BE Semiconductor Industries N.V. [BESIY.PK]
Brooks Automation, Inc. [BRKS]
BTU International, Inc. [BTUI]

Cabot Microelectronics Corporation [CCMP]
Chartered Semiconductor Manufacturing Ltd. [CHRT]
ChipMOS TECHNOLOGIES (Bermuda) LTD. [IMOS]
Cohu, Inc. [COHU]
Cree, Inc. [CREE]
Cymer, Inc. [CYMI]

Entegris, Inc. [ENTG]
EnXnet, Inc. [EXNT.OB]
EZchip Semiconductor Ltd. [EZCH]

FSI International, Inc. [FSII]

GigOptix, Inc. [GGOX.OB]

Infinite Graphics Incorporated [INFG.PK]
Ixia [XXIA]

KLA-Tencor Corporation [KLAC]
Kulicke and Soffa Industries, Inc. [KLIC]

Lam Research Corporation [LRCX]
LightPath Technologies, Inc. [LPTH]
LTX-Credence Corporation [LTXC]

Mattson Technology, Inc. [MTSN]
Micropac Industries, Inc. [MPAD.OB]
Mindspeed Technologies, Inc. [MSPD]
MKS Instruments, Inc. [MKSI]

Novellus Systems, Inc. [NVLS]

OSI Systems, Inc. [OSIS]

PSi Technologies Holdings, Inc. [PSITY.PK]

Reliability Incorporated [REAL.OB]

Scanner Technologies Corporation [SCNI.PK]
Semitool, Inc. [SMTL]
Siliconware Precision Industries Co., Ltd. [SPIL]
Solitron Devices, Inc. [SODI.OB]
SRS Labs, Inc. [SRSL]

Techwell, Inc. [TWLL]
Tegal Corporation [TGAL]
Teradyne, Inc. [TER]
Tessera Technologies, Inc. [TSRA]
Trio-Tech International, Inc. [TRT]

Ultratech, Inc. [UTEK]

Varian Semiconductor Equipment Associates, Inc. [VSEA]
Veeco Instruments Inc. [VECO]
Verigy Ltd. [VRGY]
Vyta Corp [VYTC.PK]