v3.19.3.a.u2
Cover
Dec. 10, 2019
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Dec. 10, 2019
Entity File Number 000-50307
Entity Registrant Name FORMFACTOR, INC.
Entity Central Index Key 0001039399
Entity Tax Identification Number 13-3711155
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 7005 Southfront Road
Entity Address, City or Town Livermore
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94551
City Area Code (925)
Local Phone Number 290-4000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.001 par value
Trading Symbol “FORM”
Security Exchange Name NASDAQ
Entity Emerging Growth Company false