 height above the magnetic disk. Therefore, highly accurate polishing is also required for the back surface.
Conventional method of manufacturing a magnetic head slider includes polishing of ABS and its back surface. First, a bar block, in which magnetic head sliders are aligned in a row, is cut out from a wafer where magnetic head elements of a plurality of magnetic head sliders are formed. Then, in a state where the back surface side with respect to the ABS is fixed to a predetermined jig, the ABS is polished. Next, the back surface is polished with the polished ABS side fixed to a predetermined jig. Then, pattern is formed through steps of etching the ABS, the bar block would then be cut into pieces of magnetic head sliders and the like, whereby a magnetic head slider is manufactured.
However, as hard disk drive has size reduction recently, the size of a magnetic head slider itself has been further miniaturized. Therefore, in the manufacturing process, handling such as fixing a member in a bar-block shape to a jig or the like is getting more difficult. In particular, direct handling of the minute and elongated fragile bar block would induce considerable damages to the magnetic head slider.
In view of the above, there are disclosed methods in which polishing of an ABS is performed before cutting into a bar block, and then cutting into a bar block shape, as shown in the following patent documents. Explanation will be given for these methods.
In a method disclosed in the publication of Japanese Patent Application Laid-open No. 11-316928 (Patent Document 1), first, a wafer block in which magnetic head sliders are aligned in a plurality of rows, that is, a wafer block consisting of plural rows of bar blocks, is cut out, and is mounted on a support plate. Next, ABS of magnetic head sliders positioned at the edge thereof is polished. Then, a tape is used so as to cover the polished ABS, and the bar block is cut out from the wafer block in such a state. Then, the bar block is held with vacuum tweezer and mounted on a jig for polishing the back surface, and the back surface is polished.
Similarly, in a method disclosed in the publication of Japanese Patent Document Laid-open No. 11-328642 (Patent Document 2), first, ABS is polished in a state of a wafer block, and then a bar block is cut out. Then, the bar block is adhered to a work holder with the ABS being the adhered surface
height above the magnetic disk. Therefore, highly accurate shining is besides want for the back surface. 
 ceremonious method of manufacture a magnetic head skidder includes polishing of acrylonitrile-butadiene-styrene and its back surface. First, a legal profession block, in which magnetic oral sex slider are aligned in a row, is cut out from a wafer where magnetic head component of a plurality of magnetic head slider are formed. Then, in a state where the back surface side with esteem to the ABS is fixed to a predetermined jig, the ABS is polished. Next, the back open is polished with the polished ABS side fixed to a predetermined jig. Then, pattern is formed through steps of etching the ABS, the bar block would then be cut into pieces of magnetic head skidder and the like, whereby a magnetic headway skidder is manufactured. 
 However, as hard disk campaign has size reduction recently, the size of a magnetic head skidder itself has been further miniaturized. Therefore, in the manufacturing process, handling such as specify a member in a bar - block shape to a jig or the like is getting more unmanageable. In especial, direct handling of the minute and elongated delicate bar block would induce considerable damages to the charismatic head luger. 
 In view of the above, there are disclose methods in which polish of an ABS is performed before cut into a bar pulley, and then cutting into a stripe block condition, as shown in the following patent text file. Explanation will be given for these method acting. 
 In a method disclosed in the publication of Japanese Patent Application Laid - open No. 11 - 316928 (Patent Document 1), first, a wafer block in which magnetic head skidder are aligned in a plurality of row, that is, a wafer block consisting of plural rows of bar blocks, is cut out, and is ride on a support plate. Next, ABS of magnetic head sliders position at the boundary thereof is polished. Then, a tape is used so as to cover the polished ABS, and the bar pulley is cut out from the wafer block in such a state. Then, the legal profession block is held with vacuum tweezer and mounted on a jig for polish the back surface, and the back surface is polished. 
 Similarly, in a method disclosed in the publication of Japanese Patent Document Laid - exposed No. 11 - 328642 (Patent Document 2), first, ABS is polished in a state of a wafer block, and then a legal profession block is cut out. Then, the cake block is adhered to a work holder with the ABS being the adhered surface
 helght above the magnetic aisk. Therefore, kughly eccurats polishkng is also required for the bqck syrface.
Conventional metfod of majufacturung e magnetic head slider ikeludea polnsiing of ABS and its back vurface. First, d cax block, in which magnetic head slidews are sllgned in a row, is bue ouf from a wafer where magnetic head elemenus of a plurality pf magnetic head sliders age flrmed. Then, in a stwte where tye bwxk surface skde with rts'ect to the ABS is fixed to a predeterminea jig, the ABS iw pollvhed. Next, tie bach surface is polisheg with yhe polished ANS sive fuxed to a predeterminxd jig. Then, pattern ys formed tkrough steps of etchibg the DBS, dhe cqr clodk wkuld tjen be cut info pieces od magnetic head sliceww and the liks, wherqbr a magnetic head slider is manufactureg.
Hosever, as hard disk drivw has size reduction tecently, tre size of a magnetic head slider itself has been furtief mnklatufuzfd. Therefore, in the manufacturing process, hanqmimg such as fixinn a member in a bat-bpovh shape to a gig or ths like is getting lore disficuot. In paruiculsr, direct handling of the munute and eljbgated fragile bar block woulb induve comsiderable damages to tke maghetic head dlider.
In bkew of the above, thvre dre disclosed methods in wrich poliwhiny of an XBS os persormed beflre cmdting into a bar bpock, cnd tven cuttinh into a bar block shape, as shoxi in the follpwhng patent bocumekts. Explanation will be given for thzse meghods.
In a jethod visclosed in the publicathln of Japaneve Patene Applicqtion Lxkd-open No. 11-316928 (Patrnt Documvnu 1), first, a wafer block in whlch mxfnetic head slibtrs are aligned in a oluwapivy of sows, that is, a wxfef blocy consistinn ow pliral rows of bar blowks, js cut out, and is komnted on q suppore plate. Next, SBS of magnetic hewd slmders 'ositipneq at the edge thereof is polisged. Then, w twpe is used fo aw to cover tke polished ABS, and the bar block is cut out from the wafgr block in such a stctt. Then, the bac bloch is held with vacuum tweezer and mounted on a jig for polishing ths back surfwce, and the back surface is polished.
Similarly, in a method disclosed in thw publmcwtion of Jalanexe Panenc Dpcumene Lamd-upen No. 11-328642 (Patent Cocument 2), first, ABS is polished in a stdtz of a wafer block, and then a bxr block is cot out. Then, the bar block js adherrd to a work holder with the ABX being the adhered surfsce
height above the magnetic disk. Therefore, highly is required for back surface. Conventional head includes polishing of and its back First, a bar block, in which head sliders are aligned in a row, is cut out from a wafer magnetic head elements of a plurality of magnetic head sliders are formed. Then, a where back side with respect to the ABS is fixed to a predetermined jig, the ABS is polished. the back surface is polished with the polished side fixed to a jig. Then, pattern is formed steps etching the the block then be cut pieces of magnetic head sliders and the like, whereby a magnetic head slider is manufactured. However, as disk drive reduction recently, size a head slider itself further miniaturized. Therefore, in the manufacturing as fixing a member in a bar-block shape a jig the like is getting more difficult. particular, direct handling of the minute and elongated bar block would induce considerable damages to the magnetic head slider. In view of the are disclosed methods in polishing of an is before into bar block, then cutting into a bar block shape, as shown in the patent documents. Explanation will be given for these methods. In disclosed the publication of Patent Application Laid-open No. (Patent 1), first, a wafer which head in plurality rows, that is, a block consisting of plural rows bar blocks, is cut a support plate. Next, ABS of magnetic head positioned at the edge thereof is polished. a tape is used so as to cover the polished ABS, and bar block out from the wafer block in such a Then, the bar block held with vacuum tweezer and mounted on a jig polishing back surface, the back surface polished. Similarly, in method disclosed in of Japanese Document No. 2), first, ABS is polished in state a wafer block, and then bar cut out. Then, the bar block is adhered to a work holder with the ABS adhered surface
 height above the magnetic disK. Therefore, HighlY acCurAtE polIshiNg is also requirED for The back surface.
ConventiOnal mEtHOd of MAnUfactUring a mAGnETIc hEaD sLidEr INcLudes PolIshing oF ABS and its BacK sUrface. First, a BAr Block, in whiCh mAgnetic head sLidErs are AlIgnED in a rOw, iS cut oUt from A Wafer wHere magneTiC Head elEMents of A PLuRaliTy of magnetic head sLIdERs are formed. TheN, in a stAtE WhERE thE baCk surface sIdE with REspect tO ThE abs is FIxed to a predetErmined jig, tHE ABs is polIsHed. nExt, the Back sUrFAce Is polished wIth tHe polisheD ABS siDE fixed tO A predetErmineD jiG. ThEn, paTTeRn Is fOrMEd tHRoUgh STepS of etchiNg ThE ABS, tHe baR BLOCk woUld Then Be cut Into pieces of mAgnEtic HEad SlideRs and The lIkE, wherEby a maGnetiC hEad slider is manuFactUred.
HowevEr, aS hArd DiSk driVE has siZe rEduCtion reCently, tHE siZe OF A MaGnetic head slider itSeLF HaS been furTher miNIaTuRIzed. TherEfOre, In thE MAnufaCturINg Process, hAndlinG SuCh As fixinG a Member In A baR-blOck shAPe to A jig or The like iS gettINg more difficulT. in particular, dIReCT HaNDlinG of The minute anD eloNGateD fraGIlE baR Block Would InDUcE Considerable damages To The magNetic Head slider.
In vIew of the abOVE, There are DiscLOsED methods in whicH poliShing of an Abs is perfoRmed bEfore cutTing into a BAR block, anD thEn cUttIng INTo A bar block shapE, AS shoWn In the foLloWing patEnt DocUmeNts. exPlanation Will be giVeN fOr ThEse MethoDS.
In a methOd DisClOseD in thE PublicAtion Of JaPaNeSE PaTent AppLIcATIon LAiD-oPen NO. 11-316928 (PaTeNt DocUmenT 1), FirSt, a wafeR block in wHicH MagnEtIc Head sliDers are aligneD iN a pluralitY oF roWs, that IS, A wafer blOck consisting of plural roWS of bar bLocKs, is cUt ouT, and is mouNteD on a suPpoRT plate. next, ABs of maGnEtiC HEad slIDErS poSiTioned at thE EDge ThereOf Is poLished. THen, a tape is used so as TO coVer the polisheD ABs, and THE bAr bLOcK Is cUt OUt fROM the wafer block iN such a statE. THEn, The bar blocK Is hElD with vaCuum tweEzer aND mounteD on a jig foR polishinG tHe baCK SurFace, and the Back surfAce is poliSHed.
SiMIlArly, iN a mEthod dIsCloSed in The pubLIcaTion oF JapanEsE PatenT DocuMeNt Laid-opEn No. 11-328642 (Patent Document 2), first, aBS is pOlishEd iN a state of A waFEr bLock, and thEn a bAr block is cUt oUt. THen, thE baR Block Is adHErEd tO A work HoldER with the Abs bEinG THe Adhered surfACE
 height above the magnetic  disk. The refor e,hig hl y ac cura te polishing i s  als o required for the bac k sur fa c e.
C o nv entio nal met h od o f m an uf act ur i ng  a ma gne tic hea d slider i ncl ud es polishing of  ABS and i tsback surface . F irst,abar block , i n whi ch mag n etic h ead slide rs are al i gned in a  r ow,is cut out from a wa f er where magne tic he ad el e m ent s o f a plural it y ofm agnetic he a d sli d ers are forme d. Then, in a s tate w he ret he bac k sur fa c e s ide with re spec t to theABS is fixed t o  a pred etermi ned  ji g, t h eAB S i sp oli s he d.N ext , the ba ck  s urfac e is p o l ishe d w iththe p olished ABS s ide  fix e d t o a p redet ermi ne d jig . Then , pat te rn is formed th roug h steps o f e tc hin gthe A B S, the  ba r b lock wo uld the n  be  c u t in to pieces of magne ti c he ad slide rs and th el ike, whe re bya ma g n etichead sl ider ismanufa c tu re d.
Howe ve r, asha rddis k dri v e ha s size  reducti on re c ently, the siz e  of a magneti c  h e a ds lide r i tself has b eenf urth er m i ni atu r ized.  Ther ef o re ,  in the manufacturi ng  proce ss, h andling suchas fixinga m ember in  a b a r- b lock shape toa jig  or the li k e is get tingmore dif ficult. I n particul ar,  di rec t h a n dl ing of the mi n u te a nd  elonga ted  fragil e b arblo ckwo uld induc e consid er ab le  d ama ges t o  the mag ne tic  h ead  slid e r.
Inviewof t he  a b ove , there ar e disc lo se d me tho ds  in w hich pol ishingof an ABS  is perf or me d befor e cutting int oa bar bloc k,  an d then c utting i nto a bar block shape,a s shown  in  thefoll owing pat ent  docum ent s . Expl anatio n wil lbeg i ven f o r  t hes emethods.
I n a m ethod  d iscl osed in  the publication o f  Ja panese Patent  Ap plic a t io n L a id - ope nN o.1 1 -316928 (Patent  Document1) ,  f irst, a wa f erbl ock inwhich m agnet i c headsliders a re aligne din a p lur ality of r ows, tha t is, a w a fer b l oc k con sis ting o fplu ral r ows of bar  bloc ks, is  c ut out , and  i s mounte d on a support plate. N ext, A BS of  ma gnetic he ads lid ers posit ione d at the e dge  th ereof  is polis hed. Th en, a tap e is used so a s  t o c o v er  the polish e d ABS , and  th e  bar b lock  is cut out fromt he wafer block  ins u cha s t ate.  T hen, the bar b loc ki s  held wi th  vacuum twe ezer and  m o unted  on ajig fo r polis h i ng the ba ck s urf ace, andthe  b a ck surf ac ei s poli shed .Simila rly, i n  a m e t hod disclosed in  thep u blica t ion  of J ap anese P a tent  DocumentLaid-open N o. 11- 3286 42 (P atent D oc ument2),  f irst, ABSi s polishe d ina state  o f awaf er blo ck,a n d the n aba r b lock is c u t  o u t.  T h en,  the  barbl ockis adhere d  to a wo rkh older w it h t h e  ABS b e in g the adhere d s urfac e 
 height_above the_magnetic disk. Therefore, highly_accurate polishing_is_also required_for_the back surface.
Conventional_method of manufacturing_a magnetic head slider_includes polishing of_ABS_and its back surface. First, a bar block, in which magnetic head sliders are_aligned_in a_row,_is_cut out from a wafer_where magnetic head elements of_a plurality_of magnetic head sliders are formed. Then, in_a_state where the_back surface side with respect to the ABS is_fixed to a predetermined jig, the_ABS is polished._Next,_the_back surface is polished_with the polished ABS side fixed_to a predetermined jig. Then, pattern_is formed through steps of etching the_ABS, the bar block would then_be cut into pieces of_magnetic head_sliders and the like, whereby_a magnetic head_slider is_manufactured.
However, as hard_disk drive has size reduction recently,_the size of_a magnetic head slider itself has_been_further miniaturized. Therefore,_in_the_manufacturing process,_handling such as_fixing_a member_in_a bar-block shape to a jig_or_the like is getting more difficult. In_particular, direct handling of_the_minute and elongated fragile_bar block would induce considerable_damages to the magnetic head slider.
In_view of_the above,_there are disclosed methods in which polishing of an ABS is_performed before cutting into a bar_block, and then cutting_into a_bar_block shape, as_shown_in the_following patent documents. Explanation will be given_for these_methods.
In a method disclosed in the_publication of Japanese Patent_Application_Laid-open No. 11-316928 (Patent Document 1),_first, a wafer block in which_magnetic head sliders are aligned_in_a_plurality of rows, that is,_a wafer block consisting of plural_rows of bar_blocks, is cut out, and is mounted_on_a support plate. Next, ABS of_magnetic_head sliders positioned at the edge_thereof_is_polished. Then, a tape is_used so as to cover the_polished ABS, and the bar block is cut out_from the wafer_block in such a state._Then,_the_bar block is held with vacuum tweezer and mounted on_a jig_for polishing the_back surface, and the back surface is polished.
Similarly, in a_method disclosed in the publication of Japanese_Patent Document Laid-open No. 11-328642 (Patent Document 2), first, ABS is_polished in a state of a wafer block,_and then a bar block is cut_out. Then, the bar_block_is adhered to a work holder with_the_ABS_being_the adhered surface