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                                                                    Exhibit 23.3


                          CONSENT OF ERNST & YOUNG LLP

We consent to the reference to our firm under the captions "Experts" and to the 
use of our report dated August 22, 1997, with respect to the consolidated 
financial statements of Continental Circuits Corp. included in the Registration 
Statement (Form S-4) and related Prospectus of Hadco Corporation for the 
registration of $200,000,000 of Senior Subordinated Notes due 2008.


                                        /s/ Ernst & Young LLP
                                        ---------------------------------
                                        ERNST & YOUNG LLP


Phoenix, Arizona
August 18, 1998