EXHIBIT 10.17

                         SECOND AMENDED AND RESTATED
                             INDEMNITY AGREEMENT

      SECOND AMENDED AND RESTATED INDEMNITY AGREEMENT (this  "Agreement"),  made
and entered into as of this the 25th day of September,  1998, by F. NEAL HUNTER,
an individual  residing in Durham County,  North Carolina  ("Hunter"),  and CREE
RESEARCH, INC., a North Carolina corporation ("Cree").

                             W I T N E S S E T H:

      WHEREAS,  Hunter serves as Cree's  President and Chief Executive  Officer,
and as a member and Chairman of its Board of Directors,  and holds a substantial
number of shares of Cree's common stock: and

      WHEREAS,  Cree  acquired  24,601 shares of the common stock of C3, Inc., a
North Carolina  corporation ("C3"),  pursuant to an Assignment Agreement between
Cree and C3 dated June 28, 1995 which gave Cree the right to acquire one percent
of the  outstanding  common  stock of C3 for $500 but  permitted C3 to waive the
consideration and issue the stock at any time, which C3 elected to do in January
1997; and

      WHEREAS,  C3 conducted an initial  public  offering of its common stock in
November 1997 and,  pursuant to Hunter's  direction after  consultation with its
Board of  Directors,  Cree  purchased  100,000  shares in the  offering,  at the
offering  price of $15 per share,  based upon the judgment that the market price
of the shares  would likely  increase  and that the purchase  would thus enhance
Cree's value; and

      WHEREAS,  Cree has  continued  to monitor and evaluate its C3 holdings and
has engaged in market transactions in C3 common stock since C3's public offering
in 1997; and

      WHEREAS,  due to a decline in the market price of C3 stock and in order to
avoid having Cree record a loss as a result of its C3 holdings,  Hunter  entered
into an  agreement  with Cree on  December  28,  1997 under which he promised to
indemnify  Cree  against  any losses  that might  result from the sale of its C3
stock,  up to a maximum of $300,000 (such agreement is referred to herein as the
"Original Agreement"); and

      WHEREAS,  Hunter and Cree entered into an amendment and restatement of the
Original  Agreement  on June 26,  1998 which  increased  the  maximum  amount of
Hunter's  obligation  to $400,000 and made  certain  other  modifications  (such
amendment and restatement of the Original Agreement is referred to herein as the
"First Amended Agreement");

      WHEREAS, Hunter has reached an agreement with Cree to increase further the
maximum  amount of his indemnity  and to modify the First  Amended  Agreement in
certain other respects; and


      WHEREAS,  Hunter and Cree desire to memorialize  their  understanding  and
agreement  by  amending  and  restating  the  provisions  of the  First  Amended
Agreement as set forth below;

      NOW,  THEREFORE,  for and in consideration  of the foregoing  premises and
other good and valuable  consideration,  the receipt and sufficiency of which is
hereby acknowledged,  and intending to be legally bound hereby,  Hunter and Cree
agree that the First Amended Agreement is hereby amended and restated to read as
follows:

     1.   As used in this  Agreement the following  terms shall have the meaning
indicated:

            (a)  "Measurement  Date" means the date on which  Hunter  receives a
written demand for payment under this  Agreement in accordance  with paragraph 4
below.

            (b) "Fair Market  Value" of the C3 common stock means,  with respect
to a given Measurement Date,

                  (i) the last sale price reported on the Measurement  Date (or,
if none, on the nearest  preceding  trading day) on (A) The Nasdaq Stock Market,
if the stock is listed on The Nasdaq Stock Market on the  Measurement  Date,  or
(B) if the stock is not then  listed on The  Nasdaq  Stock  Market,  then on the
principal exchange on which the stock is then listed, or

                  (ii) if the stock is not then listed on any exchange, then the
fair market value on the Measurement  Date (A) as determined by mutual agreement
of the parties or (B) if the parties are unable to reach such  agreement  within
thirty days after the  Measurement  Date, then as determined by a panel of three
arbitrators  appointed in accordance with the arbitration  rules of the American
Arbitration Association.

     2.  Subject to  the terms and conditions of this Agreement  Hunter will pay
Cree an amount equal to:

            (a) the excess, if any, of (x) the aggregate cash consideration paid
by or due from Cree for  shares of C3 common  stock  acquired  at any time on or
before the Measurement Date over (y) the aggregate cash proceeds  received by or
due to Cree for  shares of C3  common  stock  sold at any time on or before  the
Measurement Date; less

            (b) the Fair Market  Value of shares of C3 common stock held by Cree
at the close of business on the Measurement Date.

     3.   Commissions  and  other  trading  expenses  shall be  disregarded  for
purposes of this Agreement.

     4.   Payment of amounts due under this  Agreement  shall be made within ten
(10) days after receipt by Hunter of Cree's written  demand therefor. The demand
must be  made  pursuant to the  vote or written  consent of a  majority  of  the
members of the Board of  Directors  of Cree other than Hunter.


     5.   Hunter's  maximum  liability under  this Agreement shall  in  no event
exceed Four Hundred Fifty Thousand Dollars ($450,000.00).

     6.   This  Agreement  shall be binding  upon and  inure to  the  benefit of
Hunter and his heirs, personal representatives,  successors and assigns and upon
Cree and its  successors and assigns.  This  Agreement  shall be governed by the
laws of the State of North Carolina.  This Agreement shall not be amended except
in a document executed on behalf of both parties.

      IN WITNESS  WHEREOF,  the parties have executed this Agreement and affixed
their respective seals hereto as of the date first stated in the preamble above.

                                    /s/  F. Neal Hunter                 (SEAL)
                                 ---------------------------------------
                                 F. Neal Hunter


                                 CREE RESEARCH, INC.
(CORPORATE SEAL)

Attest:                          By:    /s/  Charles M. Swoboda
                                      -------------------------------------
                                      Charles M. Swoboda, Vice President

/s/  Adam H. Broome
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Adam H. Broome, Secretary