AMENDMENT NO. 3 TO THE KULICKE AND SOFFA INDUSTRIES, INC. 2009 EQUITY PLAN

Exhibit 10.4

AMENDMENT NO. 3

TO THE

KULICKE AND SOFFA INDUSTRIES, INC.

2009 EQUITY PLAN

WHEREAS, Kulicke and Soffa Industries, Inc. (the “Company”) maintains the Kulicke and Soffa Industries Inc. 2009 Equity Plan (the “Plan”);

WHEREAS, the Board of Directors (the “Board”) or the Management Development and Compensation Committee of the Board (the “Committee”) has the right to amend the Plan by written resolution;

WHEREAS, it is desired to amend the Plan with respect to the initial stock grant to nonemployee directors upon election to the Board of Directors;

NOW, THEREFORE, effective September 21, 2012, Section 7.6(b) of the Plan is hereby amended to read as follows:

(b) One-Time Grant. In addition to the quarterly grants to which a Nonemployee Director is entitled, as described in (a) above, upon his or her initial election to the Board, a Nonemployee Director shall receive a Stock Grant for the number of full Shares having a Fair Market Value on the date of his or her appointment to the Board equal to, or if not equal to, closest in value to without exceeding, $120,000 to vest in equal installments over a period of three years, one-third on each anniversary of the grant date.

IN WITNESS WHEREOF, Kulicke and Soffa Industries, Inc. has caused this Amendment to be duly executed this 21st day of September, 2012.