1 Exhibit 11.0 BTU INTERNATIONAL , INC. CALCULATION OF NET INCOME PER COMMON AND COMMON EQUIVALENT SHARE (Dollars in thousands, except share and per share data) For the Three Months Ended -------------------------- March 31, April 2, 1996 1995 - --------------------------------------------------------------------------------------------------- Net income $ 357 $ 1,156 Dividends accrued - Class A and Class AA preferred stock - (44) - --------------------------------------------------------------------------------------------------- Net income applicable to common stockholders $357 $1,112 =================================================================================================== Weighted average shares and share equivalents outstanding: Common stock 7,288,835 6,916,480 Class AA convertible preferred stock - 240,000 Stock options 68,063 157,666 - --------------------------------------------------------------------------------------------------- Weighted average shares and share equivalents outstanding 7,356,898 7,314,146 =================================================================================================== Net income per common and common equivalent share $0.05 $0.15 =================================================================================================== 12